2006-06-23  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	Version 2.60.

	* configure.ac, NEWS: Update.

2006-06-23  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* config/texinfo.tex: Sync from upstream.

	* bin/autom4te.in (handle_traces): Transform the `@S|@'
	quadrigraph correctly in traces.

	* NEWS, lib/Autom4te/C4che.pm, lib/autoconf/functions.m4:
	Fix typos.

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILE): Expand tests for
	datarootdir-related errors only if AC_DATAROOTDIR_CHECKED is
	not defined.
	* doc/autoconf.texi (Changed Directory Variables): New node,
	to document the whole `datarootdir' business a bit better.
	* NEWS: Update.
	* tests/torture.at (datarootdir workaround): Extend test.
	Prompted by report by Alexandre Julliard.

2006-06-22  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/c.m4 (_AC_PROG_CC_C89): Check for C89 incompatibility
	when using default mode of IBM C 6 for AIX.  Problem and two-line
	fix reported by Larry Jones.

2006-06-22  Alexandre Julliard <julliard@winehq.org>

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILE): Avoid warning
	about literal '${datarootdir}' if a definition is found in the
	output file.

2006-06-20  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: Use "M4" rather than "m4" when appropriate.
	Problem reported by Eric Blake.
	* doc/autoconf.texi: Likewise.
	Use @acronym around BSD, GCC, and GNU when appropriate.
	(Why GNU M4): Renamed from "Why GNU m4".
	(Redefined M4 Macros): Mention that Posix
	m4wrap takes only 1 argument, but GNU M4 1.4.x takes more.
	(Buffer Overruns): Mention size_t and ptrdiff_t as alternatives
	to int.

2006-06-20  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* bin/autom4te.in (handle_output): Do not forbid the empty
	pattern.
	* tests/tools.at (autoconf: the empty token): New test.

2006-06-20  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sugar.m4 (m4_init): Merge the two m4_wrap
	calls, so that we do not care whether they are LIFO or FIFO;
	in the m4_wrap, do not check which diversion is the topmost
	one, just check that the stack is balanced at the end.
	* lib/m4sugar/m4sh.m4 (AS_INIT): We are going to change the
	base diversion forever--pop the previous diversion before
	opening the new one; consequently, remove the m4_wrap call.
	* lib/autotest/general.m4 (AT_INIT): Likewise.
	* tests/m4sugar.at: Do not use
	m4_wrap([m4_diversion_pop([..])]), for educational purposes.

2006-06-19  Paul Eggert  <eggert@cs.ucla.edu>
	and Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* NEWS: Document that m4wrap/m4_wrap might not be LIFO.
	* doc/autoconf.texi (Redefined M4 Macros): Likewise.
	Rework example of m4wrap token-pasting trouble so that it doesn't
	care whether it's LIFO or FIFO.
	Fix some "contrary to"s that are awkward in English.

2006-06-19  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/types.m4 (_AC_TYPE_INT): Set `$ac_cv_c_int$1_t'
	to `yes' instead of `int$1_t' if the type is found, for more
	consistent configure output (where $1 is the number of bits).
	(_AC_TYPE_UINT): Likewise for `uint$1_t'.
	Suggested by Bruno Haible.

	* lib/autoconf/types.m4 (_AC_TYPE_UNSIGNED_INT): Solaris 2.5.1
	needs _UINT8_T and _UINT64_T defines as well, to avoid clashes
	with system headers.  Report by Bruno Haible.

2006-06-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* config/config.guess, config/config.sub: Sync from upstream.

	* bin/Makefile.am (autoconf.in): Use `--melt' for autom4te,
	in order to avoid picking up an older installed frozen m4sh.m4f.
	Besides an outdated shell startup, this could have been created
	by an earlier M4 version with incompatible frozen file format.

2006-06-16  Paul Eggert  <eggert@cs.ucla.edu>

	* README: Recommend m4 1.4.4 instead of 1.4.3..
	* doc/autoconf.texi: Likewise.
	(Special Chars in Names): Say that $(.FOO) is portable, as
	suggested by Stepan Kasal.
	(Installation Directory Variables, Build Directories):
	(Automatic Remaking, Subdirectories, Fortran Compiler):
	(Making testsuite Scripts, Defining Directories):
	Quote variable usages better.
	(Making testsuite Scripts): Add clean-local rule to makefile
	snippet, by Eric Blake.
	(Installation Directory Variables): Fix table item font.
	Reword slightly to clarify.  Generalize advice about
	not using special characters to include all file-related
	vars, not just VPATH.
	(Special Chars in Variables): Warn about special characters in
	$(srcdir) too.
	(Assignments): Clarify default-value example as suggested by
	Ralf Wildenhues in
	<http://lists.gnu.org/archive/html/autoconf-patches/2006-06/msg00072.html>.
	(Special Shell Variables): Note leading ./ or ../, as suggested
	by Eric Blake.
	(Limitations of Builtins): Under cd, warn about CDPATH.
	(The Make Macro MAKEFLAGS): Untabify.  Problem reported by
	Ralf Wildenhues.

2006-06-15  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Configuration Actions): Remove duplicate
	`@var', for texi2html.
	(Systemology): Some more word wrapping, for DVI output.
	(autom4te Invocation): The short option for `--melt' is `-M',
	not `-m'.

2006-06-15  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: More formatting and English tweaks,
	many suggested by Ralf Wildenhues.
	Reword to avoid "@code{...}'s" and the like, since it's ugly
	with Emacs info mode.  discontents -> woes.
	Put a few "will"s back.  time stamp -> timestamp.
	side-effect -> side effect.

2006-06-14  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Initializing configure, Shell Substitutions):
	Warn about $@ not persisting.  Problem reported by Julien Danjou in
	<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=372179>.
	(Special Chars in Names): Renamed from Leading _ in Macro Names.
	Mention other special chars, too.

2006-06-14  Eric Blake  <ebb9@byu.net>

	* doc/autoconf.texi (The Make Macro MAKEFLAGS): New node.

2006-06-13  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: Some systematic minor improvements, as
	follows.  Use "makefile" when talking about makefiles
	generally (which might be named "makefile" or "Makefile" or even
	"foo.mk"), "Makefile" when talking about a specific makefile
	called "Makefile".  This unclutters the text from weird quotes
	(e.g., "`Makefile's" in info mode).  Similarly, use "@var{foo}
	values" rather than "@var{foo}s" and similar constructs containing
	"}s".  Use "Make rules" rather than "Makefile rules".  Minor
	English-language improvements.  Change the prefix "sub-" to "sub"
	and "re-" to "re".
	Put blank lines around examples more consistently.
	Avoid "rather" and "very" as intensifiers.
	Avoid "will" as an auxiliary.
	(Limitations of Make): Split this node into....
	(Portable Make, $< in Ordinary Make Rules, Failure in Make Rules):
	(Leading _ in Macro Names, Backslash-Newline-Newline):
	(Backslash-Newline Comments, Long Lines in Makefiles):
	(Macros and Submakes, The Make Macro SHELL, Comments in Make Rules):
	(obj/ and Make, make -k Status, VPATH and Make):
	(VPATH and Double-colon, $< in Explicit Rules):
	(Automatic Rule Rewriting, OSF/Tru64 Directory Magic):
	(Make Target Lookup, Single Suffix Rules, Timestamps and Make):
	New nodes, resulting from splitup of Limitations of Make.
	All cross-references changed.  Raise the top node from
	a section to a chapter, and all subnodes accordingly.
	Redo the introductory wording to match the new organization.
	(Installation Directory Variables): Use an example that is
	closer to what Autoconf actually does.  Mention that VPATH's
	value should not contain metacharacters or white space.
	(Fortran Compiler): Fix a VPATH bug in an example.
	(Leading _ in Macro Names): Mention that this problem is no longer
	of practical concern.
	(VPATH and Make): Reword the advice to make it clearer
	that Autoconf and Automake support VPATH in non-GNU make, but
	many packages have bugs in this area.
	($< in Explicit Rules): Refer to Build Directories rather
	than using a (non-VPATH-safe) example.
	(Automatic Rule Rewriting): Mention the sort of disaster that
	can ensue with Solaris-style rule rewriting with VPATH.

2006-06-13  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/install.texi (Compilers and Options): Weaken the
	suggestion to use GNU make for VPATH builds.

	* lib/autom4te.in (Automake-preselections): Add AM_PROG_CXX_C_O,
	AM_PROG_F77_C_O, AM_PROG_FC_C_O, AC_FC_SRCEXT, AC_FC_FREEFORM.

	* lib/autoconf/programs.m4 (AC_PROG_MAKE_SET): Fix M4 quotation
	in regular expression.

2006-06-08  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Installation Directory Variables):
	Drop extra @samp from `@table @samp' item.
	(Limitations of Usual Tools): Comment fix.
	Do not nest @samp just to point to other table items.
	(Writing testsuite.at) <AT_CHECK>: The second argument to
	`@dvar' is already @samp'ed.
	(Making testsuite Scripts) <AC_CONFIG_TESTDIR>: Likewise,
	do not use @var in the second argument.

2006-06-07  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (_AS_DETECT_BETTER_SHELL): Look for
	$as_shell.exe too.  Problem reported by Andreas Buening in
	<http://lists.gnu.org/archive/html/autoconf/2006-06/msg00038.html>.

2006-06-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/functions.m4 (AC_FUNC_ALLOCA): Work around
	`unused variable' compiler warning, for `-Wall -Werror'.
	Reported by Jaap Haitsma in
	<http://lists.gnu.org/archive/html/bug-autoconf/2006-06/msg00012.html>.

2006-06-06  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/c.m4 (AC_PROG_CC_C_O): Remove core file, in
	case the compiler dumps core.  Problem reported for
	OpenServer 5.0.7 by Tim Rice in
	<http://lists.gnu.org/archive/html/bug-autoconf/2006-06/msg00019.html>.
	* lib/autoconf/general.m4 (_AC_COMPILE_IFELSE, _AC_LINK_IFELSE):
	Likewise.

2006-06-06  Tim Rice <tim@multitalents.net>.

	* lib/freeze.mk: Quiet check-forbidden-patterns so the string
	"ERROR" only shows up in "make check" output if there is an
	error.

2006-06-06  Eric Blake  <ebb9@byu.net>

	* tests/tools.at (automatically allowed tokens): Fix typo.

2006-06-05  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: Don't blame non-GNU VPATH compatibility issues on Automake.

	* doc/autoconf.texi (Integer Overflow): Mention that INT_MIN % -1
	typically overflows on x86 CPUs, even though the C standard
	requires otherwise.

2006-06-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* configure.ac (AC_INIT): Bump to 2.59e.
	* NEWS: Update.

2006-06-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	Version 2.59d.

	* config/texinfo.tex: Sync from upstream.

	* bin/autoreconf.in: Trace `LT_CONFIG_LTDL_DIR'; if it has been
	seen, invoke libtoolize with `--ltdl' argument.
	* lib/autom4te.in (Autoreconf-preselections): Adjust.
	* NEWS: Update.
	Suggested by Eric Blake.

2006-06-05  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: Whoops!  AC_FUNC_STRNLEN isn't obsolescent.  Problem
	reported by Ralf Wildenhues.
	* doc/autoconf.texi (AC_FUNC_STRNLEN): Likewise.

2006-06-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* THANKS: Update.

2006-06-05  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: Modernize some of the references to Solaris.

2006-06-05  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sugar.m4 (m4_require): Modify the error
	message issued by AC_REQUIRE.
	* tests/m4sugar.at: Check m4_require's error message.
	* tests/base.at: Check AC_REQUIRE's error message.
	* tests/local.at (AT_CHECK_M4): New macro, almost identical
	to...
	(AT_CHECK_AUTOM4TE): ... which is now a thin wrapper around
	AT_CHECK_M4.
	(AT_CHECK_AUTOCONF): Use AT_CHECK_M4; no longer support
	`expout' as the last parameter.
	* tests/tools.at: Adapt to the above change.

2006-06-04  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Limitations of Usual Tools): Correct
	information about race-free implementations of mkdir.

2006-06-04  Eric Blake  <ebb9@byu.net>

	* bin/autoreconf.in (help): Document M4 environment variable.
	* bin/autoconf.as (Usage): Likewise.
	* bin/autom4te.in (help): Likewise.
	* doc/autoconf.texi (autom4te Invocation): Likewise.

2006-06-04  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: GNU make now recommended for VPATH builds.
	Mention that some macros are now documented to be obsolescent.
	* doc/autoconf.texi:
	Prefer "current" to "modern" to describe
	currently-used (albeit perhaps old-fashioned) hosts.
	Mention which ancient features no longer need to be worried about.
	setgid -> set-group-ID
	setuid -> set-user-ID (these are the Posix terms)
	Fix some misuses of "only".
	(AC_C_BACKSLASH_A, AC_C_CONST, AC_C_PROTOTYPES):
	(AC_C_STRINGIZE, AC_C_VOLATILE, AC_FUNC_CLOSEDIR_VOID):
	(AC_FUNC_GETPGRP, AC_FUNC_LSTAT, AC_FUNC_MEMCMP):
	(AC_FUNC_SELECT_ARGTYPES, AC_FUNC_SETPGRP):
	(AC_FUNC_SETVBUF_REVERSED, AC_FUNC_STAT, AC_FUNC_STRFTIME):
	(AC_FUNC_STRNLEN, AC_FUNC_UTIME_NULL, AC_FUNC_VPRINTF):
	(AC_HEADER_DIRENT, AC_HEADER_STAT, AC_HEADER_STDC):
	(AC_HEADER_SYS_WAIT, AC_HEADER_TIME, AC_ISC_POSIX):
	(AC_PROG_GCC_TRADITIONAL, AC_STRUCT_TM):
	Mention that these macros are obsolescent.
	(Installation Directory Variables): shall -> should
	(File Descriptors): Mention that 0, 1, 2 might get reopened.
	Mention that it's now safe to use 3 and 4.
	(Limitations of Usual Tools): cp -r is now specified by Posix.
	Omit longwinded and obsolescent discussion of cp -f.
	Modernize discussion of expr, ls.
	(Limitations of Make): Modernize discussion of VPATH builds.
	Mention $? as a workaround in some cases.
	* doc/install.texi (Basic Installation):
	Mention "./configure; make; make install" first.  Be more
	specific about why this file is generic.  Remove unnecessary
	parens.  Remove misleading "only".  Remove obsolete advice
	about csh.  Don't say "configure" takes awhile; say it
	might take a while.  Suggest CFLAGS=-g rather than CFLAGS=-O2,
	and CC=c99 rather than CC=c89, as these are blessed by current
	Posix.  Recommend GNU make if doing a VPATH build.

2006-06-03  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: Use a consistent style "$ @kbd{...}" for
	examples involving shell prompts.

2006-06-02  Stepan Kasal  <kasal@ucw.cz>
	and Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Here-Documents): Add details about the
	pre-ksh93g bug.  Reword slightly to make it clearer.  Consistently
	use "here-documents" instead of "here documents".

2006-06-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* config/texinfo.tex, doc/standards.texi: Sync from upstream.

2006-06-01  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (File System Conventions): Warn about ":"
	anywhere in directory names.

2006-05-31  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (_AC_DO_ECHO): Be even more conservative
	about quoting the case statement, just in case.
	* doc/autoconf.texi (Here-Documents): Mention that the ksh bug
	was fixed in ksh93g; reported by Ralf Wildenhues.

2006-05-31  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (System Services): Do not document
	overriding EXEEXT via ac_cv_exeext=ext.
	(Particular Programs) <AC_PROG_MKDIR_P>:
	Document that ${MKDIR_P} understands --.
	* lib/autoconf/programs.m4 (AC_PROG_MKDIR_P): Improve the
	comment.

2006-05-31  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/m4sugar/m4sh.m4 (_AS_DIRNAME_PREPARE): Guard against test
	argument with leading hyphen.  Problem reported by Paul Eggert.

2006-05-30  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (_AC_DO_ECHO): Be more conservative
	about quoting ac_try: quote all of it, if any of it seems suspicious.
	This means we don't have to worry about ${ or sed any more.
	Also, double-quote the case statement, to work around misuses via
	underquoting as reported by Ralf Wildenhues in
	<http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00169.html>.
	(_AC_EVAL_STDERR): Revert, since evidently some packages rely on this
	undocumented and dangerous macro.
	Problem reported by Ralf Wildenhues in
	<http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00168.html>.

2006-05-31  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/m4sugar/m4sh.m4 (_AS_DIRNAME_PREPARE): Check whether
	`dirname -- /' returns `/', for SunOS dirname scripts that escaped.
	Report by Sam Sirlin <sam@kalessin.jpl.nasa.gov>.

2006-05-30  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4: Revert AC_TRY_EVAL and AC_TRY_COMMAND,
	since evidently some packages rely on the old, broken behavior.
	Problem reported by Ralf Wildenhues in
	<http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00160.html>.
	(AC_TRY_EVAL, AC_TRY_COMMAND, _AC_EVAL): Go back to the
	pre-2006-05-26 definitions, but leave in the comments that
	these macros are dangerous and should not be used.
	(_AC_DO_ECHO): Renamed from _AC_EVAL_ECHO.  All callers changed.
	(_AC_DO): Renamed from _AC_EVAL.  All callers changed.
	(_AC_DO_STDERR): Renamed from _AC_EVAL_STDERR.  All callers changed.
	(_AC_DO_VAR): Renamed from AC_TRY_EVAL.
	(_AC_DO_TOKENS): Renamed from AC_TRY_COMMAND.

2006-05-29  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/status.m4 (AC_OUTPUT_MAKE_DEFS): Rewrite to avoid
	the use of 'tr', since this is our only use of 'tr'.

2006-05-29  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
	and Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES_PREPARE):
	Don't assume 'grep' works on long lines, since AIX grep doesn't.

2005-05-28  Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILE): Do not use `grep' on
	the output file in the `${datarootdir}' test.

2005-05-28  Stepan Kasal  <kasal@ucw.cz>
	and Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILE): If we have not seen
	mention of `datarootdir' in the input file(s), but literal
	`${datarootdir}' in the output file, and we haven't warned yet,
	then warn as well: the user may have (erroneously) used
	`AC_SUBST([mydatadir], [$datadir/my])' instead of the correct
	`AC_SUBST([mydatadir], ['${datadir}/my'])'.
	* tests/torture.at (datarootdir workaround): Extend this test.
	* NEWS: Update.

2006-05-27  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
	and Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (autoheader Invocation): The first argument to
	`AC_DEFINE_UNQUOTED' need not be a literal.  Mention the
	alternatives and clear up the language a bit.

2006-05-27  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: Reword notice for AC_TRY_COMMAND, AC_TRY_EVAL,
	ac_config_guess, ac_config_sub, ac_configure.
	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS):
	Fix typo that prevented an unnecessary space from being removed.
	Problems reported by Ralf Wildenhues in:
	http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00143.html

2006-05-26  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Particular Programs, Limitations of Usual Tools):
	Use better wording to talk about AC_PROG_MKDIR_P's thread-safety.
	Don't use the term "thread-safe" to talk about mkdir race
	conditions, since the problem is more a process than a thread
	issue.  Problem reported by Stepan Kasal in:
	http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00088.html
	* lib/autoconf/programs.m4 (AC_PROG_MKDIR_P): Use code that mimics
	the test for 'install' more closely.  Look at MKDIR_P first.
	Look in the PATH, and at /opt/sfw/bin.
	Look for a 'gmkdir' program as well (Solaris 10 /opt/sfw/bin/gmkdir).
	Don't bother to try mkdir -p, since we already check mkdir --version;
	just look at the version number.  (There's no easy way to check
	for race-free implementations.)
	* tests/tools.at (autoconf: subdirectories): Adjust to above
	changes, since MKDIR_P now might end in "/mkdir -p".

	* doc/autoconf.texi (autoheader Invocation): Mention that the
	first arg of AC_DEFINE_UNQUOTED must be a literal.
	Problem reported by Ben Pfaff in
	<http://lists.gnu.org/archive/html/bug-autoconf/2006-05/msg00090.html>.

	* NEWS: Mention that AC_TRY_COMMAND and AC_TRY_EVAL may be removed.
	* doc/autoconf.texi (Special Chars in Variables): New section.
	(Preset Output Variables): Warn about special chars in CPPFLAGS.
	(Installation Directory Variables): Quote $(datadir) better.
	(Limitations of Builtins): Describe some of eval's trickiness.

	* lib/autoconf/c.m4 (AC_PROG_CC_C_O): Simplify quoting.
	* lib/autoconf/fortram.m4 (_AC_PROG_FC_V_OUTPUT): Likewise.
	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Put leading space
	in front of every arg, not just trailing args.  Quote apostrophes.
	(_AC_EVAL_ECHO): New macro.
	(_AC_EVAL, AC_EVAL_STDERR): Use it.  Quote arg of eval.
	(AC_TRY_EVAL, AC_TRY_COMMAND): Mention that these macros might get
	removed.
	(_AC_LINK_IFELSE): Use proper rule for shell continuation lines,
	exposed by quoting of eval argument.  Put the command on line line
	so it logs better.
	* lib/autoconf/libs.m4 (_AC_PATH_X_XMKMF): Use eval more safely.
	(_AC_PATH_X, AC_PATH_X): Quote more safely.
	* lib/autoconf/programs.m4 (AC_PROG_MAKE_SET): Use eval more safely.
	* lib/autoconf/specific.m4 (AC_SYS_LONG_FILE_NAMES): Don't use eval.
	* lib/autoconf/status.m4 (_AC_OUTPUT_SUBDIRS): Minor style change.
	Handle special chars in prefix, ac_srcdir, ac_aux_dir.
	Use eval more safely.
	(_AC_OUTPUT_CONFIG_STATUS): Adjust to above changes.
	* lib/m4sugar/m4sh.m4 (AS_VAR_GET): Note that this API needs
	to be replaced.
	* tests/base.at (AC_TRY_COMMAND): Use proper rule for shell continuation
	lines, exposed by quoting of eval argument.

2006-05-26  Stepan Kasal  <kasal@ucw.cz>
	and Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Drop the
	initialization of `ac_cv_exeext', do not override it if it was
	already set, unless it was set to `no', for compatibility with
	Autoconf-2.13, and comment this.
	Do not export `ac_cv_exeext', Libtool hasn't needed this for years.
	(_AC_COMPILER_EXEEXT_DEFAULT): Likewise, do not export it.
	(_AC_COMPILER_EXEEXT_WORKS, _AC_COMPILER_EXEEXT_CROSS): Typos.
	* doc/autoconf.texi (Compilers and Preprocessors) <EXEEXT>:
	Document that this test may be overridden by setting
	`ac_cv_exeext'.

2006-05-26  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	Revert these two patches:

	2006-04-06  Eric Blake  <ebb9@byu.net>
	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_O): Inside cache
	check, s/ac_exeext/ac_cv_exeext/.  Fixes regression introduced
	2006-04-01.

	2006-04-01  Stepan Kasal  <kasal@ucw.cz>
	Clean up _AC_COMPILER_EXEEXT* macros.
	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Don't try to
	  detect exeext, it will be done by _AC_COMPILER_EXEEXT_O; just set
	  ac_file to the name of the default output file and call
	  _AC_COMPILER_EXEEXT_WORKS.  Move the definition of ac_files and the
	  initial `rm' of the candidate files...
	(_AC_COMPILER_EXEEXT): ... here and simplify them.  Moreover, use
	  the same list in subsequent `rm' calls, and for the temporary
	  redefinition of ac_clean_files; call _AC_COMPILER_OBJEXT at the end,
	  and don't call the other _AC_COMPILER_EXEEXT_* macros directly, use...
	(_AC_COMPILER_EXEEXT_TESTS): ... this new macro.
	(_AC_COMPILER_EXEEXT_O): Don't export ac_cv_exeext, it's not needed (or
	  no longer needed) by libtool.  Make it a cache check.
	(_AC_COMPILER_EXEEXT_CROSS): Remove the comment, it was obviously
	  copied here by mistake.
	(AC_NO_EXECUTABLES): Redefine _AC_COMPILER_EXEEXT_TESTS, not
	  _AC_COMPILER_EXEEXT.
	* lib/autoconf/c.m4 (AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC): Do not call
	  _AC_COMPILER_OBJEXT directly.
	* lib/autoconf/fortran.m4 (_AC_PROG_FC): Likewise.

2006-05-25  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Limitations of Usual Tools) < sed (`t')>:
	Fix description of how the buggy `sed' works.

2006-05-25  Noah Misch  <noah@cs.caltech.edu>

	Sync from Automake:

	* lib/Autom4te/XFile.pm (lock): Allow EOPNOTSUPP, besides
	ENOLCK.  Only mention `make -j' when applicable.  Only raise
	fatal errors when `make -j' is involved.  Improve error message.

2006-05-25  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Here-Documents): We now know more about
	the variable expansion in here documents bug.
	Thanks to Tim Rice and Stepan Kasal.

	* doc/autoconf.texi (Making testsuite Scripts): Add an example
	how to use TESTSUITEFLAGS.  Suggested by Eric Blake.

2006-05-24  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* tests/autotest.at (Multiline command from M4 expansion):
	No failure to be expected if the shell quotes newlines in
	commands in the `set -x' output.  Report by Tim Rice.
	* THANKS: Update.

2006-05-23  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADER): Don't use shell
	expansion in the here-documents used by config.status, as that
	runs afoul of the Korn shell version M-12/28/93d bug described in
	the Autoconf manual, and this in turn causes a Coreutils 5.95 build to
	fail as described by Tim Rice and diagnosed by Ralf Wildenhues in
	<http://lists.gnu.org/archive/html/bug-autoconf/2006-05/msg00082.html>.

2006-05-23  Jim Meyering  <jim@meyering.net>

	* lib/autoconf/functions.m4 (AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK):
	Fix typo introduced with 2006-04-02 change.  It reversed the sense
	of the test.

2006-05-23  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADER): Simplify ac_dA and
	ac_dB slightly, to save bytes in the script.
	Max out at 50 lines, rather than 96; this is more likely
	(though not guaranteed) to avoid obscure 'sed' failures.

2006-05-23  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autotest/general.m4 (AT_INIT): UnixWare `tr' may interpret
	`tr -d -' as bad option argument.  Work around this by deleting
	an unrelated character.
	Report by Tim Rice <tim@multitalents.net>.

2006-05-22  Paul Eggert  <eggert@cs.ucla.edu>,
	    Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>,
	    Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Particular Programs): Do not promise that
	we always prefer the GNU version of the program, and that we
	search according to PATH; both rules can have exceptions.
	Update description of AC_PROG_GREP, AC_PROG_EGREP, AC_PROG_FGREP,
	AC_PROG_SED.  Move descriptions of limitations
	to the Limitations of Usual Tools section.
	(Limitations of Usual Tools) <sed>: Mention script length
	limitations with Solaris /usr/ucb/sed.
	<grep>: Fix wording for empty alternative.  Mention that -c and
	-l should not be combined, and that -E and -F should not be
	combined.

2006-05-21  Paul Eggert  <eggert@cs.ucla.edu>
	and Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/programs.m4 (AC_PROG_SED): Catch script length
	limits in Solaris 8 /usr/ucb/sed by testing a long script.

2006-05-22  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Defining Symbols): Literal parameter of
	AC_DEFINE is now passed to m4_pattern_allow.
	* NEWS: Mention that; likewise for AC_SUBST.
	* lib/autoconf/general.m4 (AC_DEFINE_TRACE_LITERAL): Pass
	the parameter to m4_pattern_allow.
	* tests/tools.at: Add a check for that.

2006-05-22  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/status.m4: Fix typos.

2006-05-21  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/programs.m4 (_AC_FEATURE_CHECK_LENGTH): Remove
	only the files that this macro generates.

2006-05-21  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Usual Tools) <sed>: For
	the HP-UX sed limitation of 99 commands, labels do not count.
	* lib/autoconf/status.m4 (_AC_SED_CMD_LIMIT): Mention that
	in the comment.
	(_AC_OUTPUT_HEADER): Revert the change from 2006-05-19.

2006-05-21  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/functions.m4 (AC_FUNC_GETMNTENT):
	Import the following fix from coreutils:

	2006-01-13  Jim Meyering  <jim@meyering.net>

	Invoke AC_CHECK_FUNCS(getmntent) unconditionally so that tests of
	$ac_cv_func_getmntent (e.g., in gl_LIST_MOUNTED_FILE_SYSTEMS) need
	not double-quote uses of that variable, to accommodate the rare
	case in which getmntent is available in none of the libraries
	checked.  This happens at least on FreeBSD 5.0.

2006-05-20  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (AC_CONFIG_AUX_DIRS): Bring back
	ac_config_guess, ac_config_sub, and ac_configure, since evidently
	some other programs unwisely rely on these undocumented vars.
	But put in warning comments about them.
	Problem reported by Ralf Wildenhues in
	<http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00068.html>.
	* NEWS: Document that these variables are intended to go away.

2006-05-20  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/c.m4 (AC_PROG_CXX_C_O): Require AC_PROG_CXX,
	and set the language to C++ (analogous to the equivalent Fortran
	tests).

	* lib/autoconf/c.m4 (AC_PROG_CXX_C_O): New macro.
	* doc/autoconf.texi (C++ Compiler): Document it.
	* lib/autoconf/fortran.m4 (_AC_PROG_FC_C_O): Adjust comment.
	* NEWS: Update.

2006-05-19  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADER): Fix off-by-one bug
	that caused config.status to generate 100-command sed scripts; the
	portable limit is 99.

2006-05-19  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/programs.m4 (AC_PROG_MKDIR_P): Name temporary
	variable `ac_d' instead of `d' to avoid infringing namespace.
	Report by Ralf Menzel.

2006-05-18  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILE): Don't prepend
	$ac_top_build_prefix to $MKDIR_P if it's just 'mkdir -p'.
	* tests/tools.at (autoconf: subdirectories): New test, taken from
	the corresponding problem report by Ralf Wildenhues in:
	http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00053.html

	* lib/autoconf/functions.m4 (AC_REPLACE_FNMATCH, AC_FUNC_FNMATCH_GNU):
	Quote some uses of shell variables if they might suffer unexpected
	globbing.  This doesn't fix all instances of quoting problems that
	I found, just the easy ones that look safe.
	* lib/autoconf/general.m4 (_AC_INIT_SRCDIR, _AC_INIT_HELP):
	(AC_CONFIG_AUX_DIR, AC_CONFIG_AUX_DIR_DEFAULT, AC_CONFIG_AUX_DIRS):
	(AC_CANONICAL_BUILD, AC_CANONICAL_HOST, AC_CANONICAL_TARGET):
	(AC_CACHE_LOAD, AC_CACHE_SAVE): Likewise.
	* lib/autoconf/libs.m4 (_AC_PATH_X_XMKMF, _AC_PATH_X_DIRECT): Likewise.
	* lib/autoconf/specific.m4 (AC_SYS_LONG_FILE_NAMES): Likewise.
	* lib/autoconf/status.m4 (_AC_OUTPUT_LINK, _AC_OUTPUT_SUBDIRS):
	Likewise.
	* lib/autotest/general.m4 (_AC_INIT_PARSE_ARGS): Likewise.
	* lib/m4sugar/m4sh.m4 (_AS_DETECT_BETTER_SHELL): Likewise.

2006-05-18  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* bin/autoreconf.in ($help): Reword according to the manual.
	Suggested by Olly Betts.

2006-05-17  Olly Betts  <olly@survex.com>  (tiny change)
	and Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* bin/autoreconf.in: Pass the directory argument to
	`require_configure_ac'.  Fix comment.
	* tests/torture.at (Configuring subdirectories): Expose this.
	Reported by Olly Betts.

2006-05-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/Automake/Configure_ac.pm, lib/Automake/Channels.pm,
	lib/Automake/FileUtils.pm, lib/Automake/Struct.pm: Sync from
	Automake as follows:

	* lib/Autom4te/Configure_ac.pm (find_configure_ac): Use
	`$configure_in' instead of `configure.in', to preserve
	directory component.

2006-05-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* config/config.guess, config/config.sub, config/texinfo.tex,
	doc/make-stds.texi, doc/standards.texi: Sync from upstream.

2006-05-14  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/headers.m4 (AC_HEADER_STDBOOL): Fix overly-picky
	test for C99 conformance; (bool) 0.5 is an integer constant
	expression, but (bool) -0.5 is not.  Problem reported by Fedor
	Sergeev in <http://forum.sun.com/jive/thread.jspa?threadID=96202>.

2006-05-13  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Particular Programs): AC_PROG_MKDIR_P now
	sets MKDIR_P, not mkdir_p, to avoid collisions with Automake.
	Warn about obsolete install-sh files.  Remove stray sentence
	fragment and fix cross reference.
	* lib/autoconf/programs.m4 (AC_PROG_INSTALL): Don't insist on
	install -d; this undoes the 2006-05-10 change.
	(MKDIR_P): Mark with AN_MAKEVAR.
	(AC_PROG_MKDIR_P): Fall back on $ac_install_sh, not $INSTALL, so
	that we don't require $INSTALL to be thread-safe.  Move comments
	out of generated code.  Require AC_CONFIG_AUX_DIR_DEFAULT instead
	of AC_PROG_INSTALL.  Output a message saying that we're checking
	mkdir -p.  Set MKDIR_P rather than mkdir_p.  Do special magic for
	MKDIR_P instead of AC_SUBST.
	* lib/autoconf/status.m4 (_AC_OUTPUT_FILE, _AC_OUTPUT_CONFIG_STATUS):
	Special magic for MKDIR_P, too.
	* lib/m4sugar/m4sh.m4 (AS_MKDIR_P): Remove comment that defeated
	a dnl.
	* tests/local.at (AT_CHECK_ENV): mkdir_p -> MKDIR_P.

2006-05-11  Paul Eggert  <eggert@cs.ucla.edu>

	Sync from Automake, as follows:

	2006-05-11  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
	* config/install-sh: Initialize IFS, so field splitting isn't
	turned off later.
	* config/mkinstalldirs: Likewise.
	* config/missing: Remove superfluous quotes.  Replace all uses of
	`[' by `test', for consistency, and for..
	* config/missing (sed_minuso, sed_output): New variables.
	(autom4te, help2man, makeinfo): Use them.  Unifies detection of
	`-o FILE', `--output FILE', `--output=FILE', stricter regex.
	Fixes `missing' to detect `--output' for help2man.  Fixes
	PR automake/483.  Report by Dennis J. Linse.
	(autom4te): Document in `missing --help'.

2006-05-10  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: New macro AC_PROG_MKDIR_P.  AS_MKDIR_P is now more robust.
	* config/install-sh: Don't use 'path' to talk about file names,
	as per GNU coding standards.  Close a race condition reported by Ralf
	Wildenhues and Stepan Kasal.  There is still a race condition
	on hosts that predate Posix 1003.1-1992, but we can't help this.
	Don't mishandle weird characters like space on pre-Posix hosts.
	Invoke mkdir at most once per dir arg on pre-Posix hosts.
	* doc/autoconf.texi (Programming in M4sh): Cross-reference to
	AC_PROG_MKDIR_P from AS_MKDIR_P.
	(Limitations of Usual Tools): Cross-reference to AC_PROG_MKDIR_P
	from mkdir.  Mention that Autoconf 2.60 install-sh is safe but
	earlier editions are not (including Automake 1.8.3).
	Do not suggest mkinstalldirs for thread-safety.
	* lib/autoconf/programs.m4 (AC_PROG_INSTALL): Insist on an 'install'
	that understands -d, so that AC_PROG_MKDIR_P can fall back on $INSTALL.
	* lib/m4sugar/m4sh.m4 (AS_MKDIR_P): Make it more robust in the
	presence of special characters and race conditions.
	* tests/local.at (AT_CHECK_ENV): Add mkdir_p to the list of variables
	in Autoconf's name space.

2006-05-10  Bruno Haible  <bruno@clisp.org>
	and Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/programs.m4 (AC_PROG_MKDIR_P): New macro, taken
	from Automake with minor changes.
	* doc/autoconf.texi (Particular Programs): Document AC_PROG_MKDIR_P.

2006-05-10  Paul Eggert  <eggert@cs.ucla.edu>

	* config/install-sh: Update to Automake CVS version, as follows:
	2006-04-25  Stepan Kasal  <kasal@ucw.cz>
	* lib/install-sh: Simplify the expr implementation of dirname.
	2006-04-24  Paul Eggert  <eggert@cs.ucla.edu>
	* lib/install-sh: Handle --, and diagnose unknown options.

2006-05-09  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* tests/Makefile.am (AUTOTEST): Use `$(MY_AUTOM4TE)' instead of
	`./autom4te' to create `./testsuite', since the `all' target
	will ensure its presence, but `installcheck' should not create
	the uninstalled wrappers.

	* tests/torture.at (Unusual Automake input files): Skip if we
	detect automake < 1.8.

2006-05-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/c.m4 (AC_PROG_CC_STDC): If ac_cv_prog_cc_stdc
	is set to `no', then that overrides and sets ac_cv_prog_cc_c89
	and ac_cv_prog_cc_c99 to `no', for backward compatibility.
	* NEWS: Update.

2006-05-06  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/status.m4 (_AC_OUTPUT_SUBDIRS): Take care not to
	munge (multiple) white space and other oddities.
	* tests/torture.at (AT_CHECK_AC_ARG_VAR): Make sure to M4-escape
	single quotes in variable assignment.
	(AC_ARG_VAR, configure invocation): Adjust tests to expose this
	and similar failures by adding multiple spaces, tabs, and other
	special characters.
	Report and different test suggested by Francesco Romani
	<fromani@gmail.com> and Andrew Church <achurch@achurch.org>.

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): When we escape
	single quotes, we only need to search for single quotes; this
	both simplifies the search pattern, and makes us less
	susceptible to `echo' variations for arguments not containing
	single quotes.
	(_AC_ARG_VAR_VALIDATE): Likewise.

2006-05-04  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Special Shell Variables) <IFS>: Document
	`$*' and IFS concatenation issue with traditional shells and
	bash-2.04.  Report by Seanster@Seanster.com.

2006-05-03  Bruno Haible  <bruno@clisp.org>

	* doc/autoconf.texi (Limitations of Usual Tools): Identify more
	precisely which Mac OS X versions have the od problem.

2006-05-02  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: Use @option systematically.

2006-05-02  Paul Eggert  <eggert@cs.ucla.edu>
	and Bruno Haible  <bruno@clisp.org>

	* doc/autoconf.texi (Limitations of Usual Tools): Add a paragraph
	about 'od'.
	(Integer Overflow): Mention the special case of integer division
	overflow.

2006-05-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/general.m4 (_AC_CANONICAL_SPLIT): Cater for
	traditional shells like the Solaris one that do not use the
	first IFS character for assembling `$*'.
	Prompted by a related report from autoconf_bug@nro.ca.

2006-05-01  Paul Eggert  <eggert@cs.ucla.edu>
	and Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Limitations of Builtins, Limitations of Make):
	Mention more problems with the -e option.

2006-04-30  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* NEWS: Typo.
	* doc/autoconf.texi (Systemology): Mention the Heirloom Project.

	* doc/autoconf.texi (Introduction, Pointers): Use `@/' liberally
	in URLs to improve DVI formatted output (requires texinfo 4.6).
	(System Services, Systemology, Shellology): Likewise.
	(Limitations of Usual Tools): Rewrite Mac OS X example for nicer
	output.

	* doc/autoconf.texi (Fortran Compiler): Do not use `@ovar' in
	continuous text.
	(Runtime): Fix macro argument names to match description:
	`action-if-found' -> `action-if-true' and similarly.
	(Obsolete Macros): Likewise.
	* lib/autoconf/general.m4 (_AC_COMPILE_IFELSE): Likewise.
	(AC_COMPILE_IFELSE, AC_TRY_COMPILE, _AC_LINK_IFELSE)
	(AC_LINK_IFELSE, AC_TRY_LINK, AC_COMPILE_CHECK): Likewise.

2006-04-29  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Limitations of Make): Clean up markup.

	* ChangeLog: Typo.
	* doc/autoconf.texi (Portable Shell): Allow wrapped URLs, for
	DVI output.

2006-04-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Limitations of Builtins): Document FreeBSD
	/bin/sh set unsorted output.
	* lib/autoconf/general.m4 (_AC_CACHE_DUMP): Adjust.
	* tests/local.at: Likewise.

2006-04-26  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Portable C and C++, Varieties of Unportability):
	(Integer Overflow, Null Pointers, Buffer Overruns):
	(Floating Point Portability, Exiting Portably): New sections.
	(Writing Test Programs): Fix some langauge.  Recommend exiting
	with status 1, not merely nonzero.  Clarify exit declaration.
	(Run Time): Move C exit status stuff to new Exiting Portably section.
	(Systemology): Mention Posix and levenez.  Update v7 reference.
	(Portable Shell): Mention the Posix shell.

2006-04-25  Stepan Kasal  <kasal@ucw.cz>

	* bin/autoconf.as (me): Replace by as_me.

2006-04-25  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Don't use AS_ERROR,
	since as_me isn't set yet.

2006-04-23  Paul Eggert  <eggert@cs.ucla.edu>

	Prepare for deprecation of AS_BASENAME and AS_DIRNAME, and fix
	a few minor bugs in this area.

	* doc/autoconf.texi (Programming in M4sh): Comment out the
	documentation of AS_BASENAME, for now.
	(Shell Substitutions): Do not use AS_DIRNAME in an example.
	(Limitations of Builtins) <basename>: Do not refer to
	AS_BASENAME.
	* bin/autoconf.as (me): Don't use AS_BASENAME.
	(dir): Remove the unused variable.
	* lib/m4sugar/m4sh.m4 (_AS_DETECT_REQUIRED): Renamed from
	AS_DETECT_REQUIRED.  All uses changed.
	(_AS_DETECT_SUGGESTED): Renamed from AS_DETECT_SUGGESTED.
	All uses changed.
	(_AS_DETECT_BETTER_SHELL): Put ;; at the end of a case.
	(AS_BASENAME): Use "basename --" to protect against leading "-".
	(_AS_BASENAME_EXPR): Renamed from AS_BASENAME_EXPR.  All uses changed.
	(_AS_BASENAME_SED): Renamed from AS_BASENAME_SED.  All uses changed.
	(_AS_BASENAME_PREPARE): Reject implementations that cannot handle "--".
	(_AS_DIRNAME_PREPARE): Likewise.
	(_AS_DIRNAME_EXPR): Renamed from AS_DIRNAME_EXPR.  All uses changed.
	(_AS_DIRNAME_SED): Renamed from AS_DIRNAME_SED.  All uses changed.
	(AS_DIRNAME): Use "dirname --".

2006-04-23  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Runtime): Renamed from "Run Time".  All uses
	of "run time" and "run-time" changed to "runtime", for consistency.
	* lib/autoconf/fortran.m4: Likewise (in comment).
	* lib/autoconf/functions.m4: Likewise.
	* lib/autoconf/general.m4: Likewise.
	* lib/autoconf/headers.m4: Likewise.

	* doc/autoconf.texi (Run Time): Document the exit status situation
	with more accuracy and detail.

2006-04-23  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Introduction): The GNU Autoconf Macro
	Archive is not officially `GNU' any more.  Update URL.
	(Defining Directories): Likewise
	* lib/autoconf/c.m4 (AC_C_RESTRICT): Update URL.

2006-04-19  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Remove the leading
	newline from the `trap' code to finish `config.log'; the NetBSD
	/bin/sh resets the exit status after an empty command, as
	documented in doc/autoconf.texi.
	Reported by Dalibor Topic <robilad@kaffe.org>.

2006-04-19  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (C Compiler): Clarify AC_C_TYPEOF.
	Suggested by Bruno Haible.

2006-04-18  Paul Eggert  <eggert@cs.ucla.edu>

	* configure.ac (ac_cv_sh_n_works): Don't try to test for it, since
	some shells (e.g., Solaris 8 /bin/sh) implement it verrrry slowly.
	Instead, just list the shells that we know work.
	* tests/local.at (AT_CHECK_SHELL_SYNTAX): Remove 2nd arg.  All uses
	changed.  Be more cautious about the _cv_ variable.
	* tests/tools.at (Syntax of the shell scripts): Check the
	_cv_ variable once, at first, to avoid an internal autoconf error
	when sh -n does not work.

2006-04-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/Autom4te/FileUtils.pm: Sync from Automake.

2006-04-16  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (_AC_INIT_CONFIG_LOG): Don't
	use ">&-" since we're only 99.999% sure that this is portable,
	and since the MinGW bug is fixed in a different way.
	* lib/autotest/general.m4 (AT_INIT): Likewise.

2006-04-16  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Handle --recheck
	before opening config.log, to avoid hitting a bug on MinGW.

2006-04-14  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (_AC_INIT_CONFIG_LOG): Close
	AS_MESSAGE_LOG_FD before reopening it onto the log file.
	This works around a MinGW bug reported by Eric Paire.
	Make sure that all writes to the log file append to it,
	rather than possibly losing data.
	* lib/autotest/general.m4 (AT_INIT): Likewise.

2006-04-14  Stepan Kasal  <kasal@ucw.cz>

	* lib/Autom4te/FileUtils.pm (find_file): Fix a typo in the
	description.

2006-04-13  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* NEWS: Update.

	* configure.ac (AC_INIT): Bump to 2.59d.

2006-04-12  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	Version 2.59c.

	* Makefile.maint (news-date-check): Do not require a leading `*'
	before the release date in NEWS.

2006-04-12  Stepan Kasal  <kasal@ucw.cz>
	and Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILE): If the templates for
	the instantiated file do not contain the string 'datarootdir'
	but contain @datadir@, @docdir@, @infodir@, @localedir@, or
	@mandir@, replace the reference '${datarootdir}' by the value.
	* tests/torture.at (datarootdir workaround): New test.
	* NEWS: Advertise this temporary fixup.
	Based on a patch by Bruno Haible, reported and analyzed by
	Paul Eggert and Noah Misch.

2006-04-12  Eric Blake  <ebb9@byu.net>

	* tests/autotest.at (Debugging a failed test): Fix comment.

2006-04-12  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sh.m4 (_AS_LN_S_PREPARE): Simplify the summary of
	all the changes since 2006-04-07.

2006-04-11  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/m4sugar/m4sh.m4 (_AS_LN_S_PREPARE): If `ln -s file1 file2'
	succeeded, but `ln -s file dir' failed, take care to remove the
	leftover target before the next test, to prevent its spurious
	failure; also make sure `ln file dir' works before selecting it.
	Thanks to Keith Marshall for pointing this out.
	* THANKS: Update.

	* lib/autotest/general.m4 (AT_INIT): Store quoted variable
	assignments in `at_debug_args', so that we put them correctly
	in the `run' script.
	* tests/autotest.at (Debugging a failed test): Unmark XFAIL.
	Reported by Eric Blake.

2006-04-11  Eric Blake  <ebb9@byu.net>

	* tests/autotest.at (AT_CHECK_AT): Add new argument, to allow
	top-level tests after micro-suite has been run.   Used in...
	(Debugging a successful test, Debugging script and environment),
	(Debugging a failed test): ...these new tests.  The first of these
	is fixed by...
	* lib/autotest/general.m4 (_AT_CREATE_DEBUGGING_SCRIPT): New
	macro, split out from...
	(AT_INIT): ...here, so that using -d also generates a run script.
	Document that -d inhibits top-level logging.
	* doc/autoconf.texi (testsuite Invocation): Document that -d only
	inhibits top-level logging; debug scripts are created.

	* lib/autotest/general.m4 (_AT_CHECK): Avoid syntax error on empty
	check.
	* tests/autotest.at (Empty test, Empty check): New test to check it.

	* lib/autoconf/c.m4 (AC_C_CONST, AC_C_VOLATILE): Avoid warnings
	from gcc.

2006-04-10  Stepan Kasal  <kasal@ucw.cz>

	* tests/mktests.sh: Use "trap '' 0", not "trap 0".  Do not touch
	the files if a problem appears.  Make the empty *.at files
	read-only, too.  Proposed by Ralf Wildenhues.

2006-04-10  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* config/Makefile.am: Add comment to force updated Makefile.in.

	* lib/freeze.mk: Fix typo in comment.  Unlike the last, white
	space only patch to this file, this patch causes the Makefile.in
	files that include freeze.mk to be updated, and thus have a
	newer time stamp again, which in turn makes a pristine CVS
	checkout have correct time stamps.

	* Makefile.maint (cvs-sv): New macro, to be used..
	(config.guess-url_prefix, config.sub-url_prefix)
	(texinfo.tex-url_prefix, standards.texi-url_prefix): ..here;
	point to CVS text checkout of Gnulib files.
	(copyright-check): Bump current year.
	(announcement): Do not hard-wire `./announce-gen'.
	(cvs-update): Propagate failures of `cvs' and `move-if-change'
	correctly.
	* Makefile.cfg (executable-update): Use `chmod a+x' instead of
	`chmod +x'.
	(wget_files): Update config.guess, config.sub, texinfo.tex by
	`wget-update', now that their URLs work again.

2006-04-10  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Particular Types): Don't use AC_CHECK_TYPE.
	Problem noted by Paul D. Smith.

2006-04-10  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi: Remove unused words from word list.
	* .x-sc_prohibit_atoi_atof, .x-sc_space_tab, .x-sc_sun_os_names,
	.x-sc_trailing_space: New files.

	* doc/standards.texi: Sync from gnulib.

	* NEWS, doc/autoconf.texi (AC_LIBOBJ vs LIBOBJS): Mark
	`LIBOBJDIR' as experimental.

	* lib/m4sugar/m4sh.m4 (_AS_LN_S_PREPARE): MSYS `ln -s' fails
	with a target directory; it's internally implemented as `cp'
	anyway, but since Autoconf advertises the possibility to use
	a target directory when LN_S is `ln -s', we need to find out.
	Reported by Rolf Ebert <rolf.ebert.gcc@gmx.de> against MSYS,
	analyzed by Keith Marshall <keith.marshall@total.com>.

	* THANKS: Update.

2006-04-10  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Just output
	confdefs.h as-is.  In general, if it has backslash-newline or the
	like, then it doesn't work either to sort or to remove empty
	lines.

2006-04-09  Stepan Kasal  <kasal@ucw.cz>

	* tests/Makefile.am (AUTOCONF_FILES): Fix typo in the comment.

2006-04-09  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autom4te.in (Automake-preselections): Preselect
	_AM_SUBST_NOTMAKE.

2006-04-08  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Use '\'' for an
	apostrophe within a single-quoted string, as this is the usual
	tradition and is easier to read than '"'"'.  Don't rely on the
	shell treating "$/" like '$/'.  Use a more-consistent indenting
	style for the trap.

2006-04-09  Eric Blake  <ebb9@byu.net>

	* tests/autotest.at (Backquote command substitution),
	(Multiline backquote command substitution): Remove mistaken
	AT_NO_CMDSUBST from the 2006-03-14 patch, which was meant to be
	applied...
	(Parenthetical command substitution, Multiline parenthetical
	command substitution): here.

2006-04-08  Paul Eggert  <eggert@cs.ucla.edu>

	Import macros from gnulib (often changing their name).

	* NEWS: AC_C_TYPE_LONG_DOUBLE is now obsolete.
	New macros AC_CHECK_DECLS_ONCE, AC_CHECK_FUNCS_ONCE,
	AC_CHECK_HEADERS_ONCE, AC_FUNC_STRTOLD, AC_HEADER_ASSERT,
	AC_STRUCT_DIRENT_D_INO, AC_STRUCT_DIRENT_D_TYPE,
	AC_TYPE_LONG_DOUBLE, AC_TYPE_LONG_DOUBLE_WIDER, AC_TYPE_INT8_T,
	AC_TYPE_INT16_T, AC_TYPE_INT32_T, AC_TYPE_INT64_T,
	AC_TYPE_INTMAX_T, AC_TYPE_INTPTR_T, AC_TYPE_LONG_LONG_INT,
	AC_TYPE_UINT8_T, AC_TYPE_UINT16_T, AC_TYPE_UINT32_T,
	AC_TYPE_UINT64_T, AC_TYPE_UINTMAX_T, AC_TYPE_UINTPTR_T,
	AC_TYPE_UNSIGNED_LONG_LONG_INT, AC_USE_SYSTEM_EXTENSIONS.
	The manual mentions Gnulib more prominently.
	* doc/autoconf.texi (Gnulib): New node.
	(Pointers): Add Gnulib URL.
	(Particular Functions): Alphabetize.  Add AC_FUNC_STRTOLD.
	(Generic Functions): Add AC_CHECK_FUNCS_ONCE.  Refer to new
	Gnulib section.
	(Particular Headers): Add AC_HEADER_ASSERT.  For stdbool.h,
	suggest a #define rather than a typedef for _Bool, and mention
	Gnulib rather than trying to substitute stdbool code.
	(Generic Headers): Add AC_CHECK_HEADERS_ONCE.
	(Generic Declarations): Add AC_CHECK_DECLS_ONCE.
	(Particular Structures): Add AC_STRUCT_DIRENT_D_INO,
	AC_STRUCT_DIRENT_D_TYPE.
	(Particular Types): Mention stdint.h and inttypes.h as standard
	headers too.
	Add AC_TYPE_INT8_T, AC_TYPE_INT16_T, AC_TYPE_INT32_T, AC_TYPE_INT64_T,
	AC_TYPE_INTMAX_T, AC_TYPE_INTPTR_T, AC_TYPE_LONG_DOUBLE,
	AC_TYPE_LONG_DOUBLE_WIDER, AC_TYPE_LONG_LONG_INT, AC_TYPE_UINT8_T,
	AC_TYPE_UINT16_T, AC_TYPE_UINT32_T, AC_TYPE_UINT64_T,
	AC_TYPE_UINTMAX_T, AC_TYPE_UINTPTR_T, AC_TYPE_UNSIGNED_LONG_LONG_INT.
	(C Compiler): Move AC_C_LONG_DOUBLE to ...
	(Obsolete Macros): here.  Under AC_LONG_DOUBLE, mention
	AC_TYPE_LONG_DOUBLE or AC_TYPE_LONG_DOUBLE_WIDER instead.
	(Posix Variants): Add AC_USE_SYSTEM_EXTENSIONS.
	(Coding Style).  Don't mention m4_expand_once.
	* lib/autoconf/c.m4 (AC_C_LONG_DOUBLE): Implement via
	AC_TYPE_LONG_DOUBLE_WIDER.  Now obsolete.
	* lib/autoconf/functions.m4 (_AH_CHECK_FUNCS): New macro.
	(AC_CHECK_FUNCS): Use it.
	(AC_CHECK_FUNCS_ONCE, AC_FUNC_STRTOLD): New macros.
	(AC_FUNC_WAIT3): "the Open Group standards" -> "POSIX".
	* lib/autoconf/general.m4 (AC_CHECK_DECLS_ONCE): New macro.
	* lib/autoconf/headers.m4 (AC_CHECK_HEADERS_ONCE): New macro.
	(AC_HEADER_ASSERT): New macro.
	(AC_HEADER_STDBOOL): Don't assume "#error" works.
	Catch a bug in IBM AIX xlc compiler version 6.0.0.0.
	Catch a bug in an HP-UX C compiler.
	* lib/autoconf/specific.m4 (AC_USE_SYSTEM_EXTENSIONS): New macro.
	* lib/autoconf/types.m4 (AC_TYPE_INTMAX_T. AC_TYPE_UINTMAX_T):
	(AC_TYPE_INTPTR_T, AC_TYPE_UINTPTR_T. AC_TYPE_LONG_DOUBLE):
	(AC_TYPE_LONG_DOUBLE_WIDER, AC_C_LONG_DOUBLE, AC_TYPE_LONG_LONG_INT):
	(AC_TYPE_UNSIGNED_LONG_LONG_INT, _AC_TYPE_INT, _AC_TYPE_UNSIGNED_INT):
	(_AC_STRUCT_DIRENT, AC_STRUCT_DIRENT_D_INO, AC_STRUCT_DIRENT_D_TYPE):
	New macros.

	* tests/mktests.sh (ac_exclude_list, au_exclude_list): Do not
	use /^foo|bar$/, it does not mean /^(foo|bar)$/.

2006-04-08  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Fix the wording
	of the warning introduced by the 2001-08-28 change.

2006-04-08  Stepan Kasal  <kasal@ucw.cz>,
	    Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/general.m4 (AC_CACHE_SAVE): All `ac_cv_env_foo'
	variables shall be overriden by the cache.
	* tests/torture.at (AC_ARG_VAR): Test also with a first value
	that contains braces.

2006-04-07  Stepan Kasal  <kasal@ucw.cz>

	Revert the patch from 2006-04-01 and only improve
	_AS_DETECT_BETTER_SHELL:

	* lib/m4sugar/m4sh.m4 (_AS_PATH_WALK): Do not optimize; do not
	skip nonexistent directories.
	(_AS_DETECT_BETTER_SHELL): The optimization is moved here--try
	only shell candidates which exist.
	(AS_UNAME): No need to give three parameters to _AS_PATH_WALK.
	* lib/autotest/general.m4 (AT_INIT): No need to give three
	parameters to _AS_PATH_WALK.

2006-04-07  Stepan Kasal  <kasal@ucw.cz>,
	    Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

	* bin/autoupdate.in (handle_autoconf_patches): Change the way we
	distinguish m4sugar macros.
	* tests/tools.at (autoupdating with aclocal and m4_include):
	New test.  Bug reported by Gary V. Vaughan <gary@gnu.org>,
	test case by Noah Misch <noah@cs.caltech.edu>.

2006-04-07  Stepan Kasal  <kasal@ucw.cz>

	Revert my change from 2006-03-17, in other words:
	* lib/m4sugar/m4sh.m4 (AS_BOURNE_COMPATIBLE): Insert BIN_SH=xpg4
	  and DUALCASE=1.
	(AS_SHELL_SANITIZE): Remove DUALCASE=1.
	* doc/autoconf.texi (Special Shell Variables) <BIN_SH>: Say that
	  it is set.

2006-04-07  Eric Blake  <ebb9@byu.net>

	* doc/autoconf.texi (Programming in M4sh): Document that
	AS_MKDIR_P exits the script on failure.
	* lib/autotest/general.m4: Remove redundant AS_ERROR.

2006-04-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* config/elisp-comp, config/install-sh, config/mdate-sh,
	config/missing, config/mkinstalldirs: Sync from Automake.

	* lib/Autom4te/FileUtils.pm, lib/Autom4te/Struct.pm: Sync
	from Automake.

	* doc/make-stds.texi: Sync from gnulib.

2006-04-06  Eric Blake  <ebb9@byu.net>

	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_O): Inside cache
	check, s/ac_exeext/ac_cv_exeext/.  Fixes regression introduced
	2006-04-01.

2006-04-06  Stepan Kasal  <kasal@ucw.cz>,
	    Eric Blake  <ebb9@byu.net>,
	    Paul Eggert  <eggert@cs.ucla.edu>,
	    Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/general.m4 (_AC_CACHE_DUMP): Fix the detection of
	whether `set' quotes correctly: redirect stderr of the tested
	`set', and use a subshell, for Ultrix; use `sed' instead of
	`grep' for zsh `set' which may write binary output; match only
	at the beginning of a line, to avoid false positives.
	In order to avoid false positives by unrelated variables with
	multiline content, put the dump algorithm in a subshell and
	unset all variables containing newlines (except some which are
	special to the shell).  Warn about cache variables that are
	unset.

2006-04-06  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* config/config.guess, config/config.sub, config/texinfo.tex:
	Sync from upstream.

	* tests/mktests.sh: Reword comments.

	* tests/mktests.sh: Only skip internal macros starting with
	`_AC_' or `__AC_'.  Noted by Stepan Kasal.
	Update exclusion lists for the test suite to this end:
	(AC_ARG_VAR): Do test this now.
	(AC_SEARCH_LIBS, AC_REPLACE_FUNCS): Need an argument.
	(AC_LINKER_OPTION): Remove (renamed to _AC_LINKER_OPTION).
	(AC_LIST_MEMBER_OF): Likewise (renamed to _AC_LIST_MEMBER_IF).
	(AC_LINK_FILES): Obsoleted since (and thus AU_DEFUN'ed).

	* doc/autoconf.texi (Shell Substitutions): Mention the MSYS
	shell issue with double-quoted command substitutions of native
	commands.
	Reported to MSYS by Mark Cave-Ayland, to Autoconf by Keith
	Marshall.

	* Makefile.maint (sc_cast_of_argument_to_free): Do not fail when
	no file matches the glob, discard the warning, set `nullglob'.
	(syntax-check): Likewise.
	(sc_cast_of_x_alloc_return_value): Likewise.
	(sc_cast_of_alloca_return_value, sc_error_exit_success)
	(sc_prohibit_jm_in_m4, .re-list, sc_unmarked_diagnostics)
	(m4-check): Likewise.
	(sc_system_h_headers): Do not print rule on execution.
	(sc_tight_scope): Do not fail for non-existing `src' directory.
	(sc_changelog): Skip the Copyright footer.
	* lib/autoconf/lang.m4: Remove trailing space.

	* lib/autoconf/status.m4: More replacements to
	<tab><space> where this makes sense.

2006-04-06  Stepan Kasal  <kasal@ucw.cz>

	* tests/Makefile.am (maintainer-check-posix):
	  s/POSIXLY_CORRECTLY/POSIXLY_CORRECT/

	* lib/autoconf/status.m4 (_AC_CONFIG_FOOS): Append TAGS to
	  ac_config_<foo>s again, sometimes normalized, sometimes not.
	(AC_CONFIG_FILES, AC_CONFIG_HEADERS, AC_CONFIG_LINKS):
	(AC_CONFIG_COMMANDS): Do not do so here.
	(_AC_CONFIG_REGISTER_DEST): Double quote the tags in macros _AC_LIST_TAGS
	  and_AC_LIST_TAG_COMMANDS; fixes another regression introduced by the
	  2005-07-25 rewrite.  Noticed by Noah Misch.

	* lib/autoconf/general.m4 (AC_PRESERVE_HELP_ORDER): Do not define
	  _AC_PRESERVE_HELP_ORDER, ...
	(AC_ARG_ENABLE, AC_ARG_WITH): ... use AC_PROVIDE_IFELSE insetad.

	* lib/autoconf/general.m4 (AC_ARG_VAR): Do not use m4_divert_once
	  inside m4_expand_once; it is redundant.

	* lib/autoconf/general.m4 (_AC_INIT_HELP): Remove the broken support
	  for --help from Cygnus `configure.'

2006-04-06  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (C Compiler): Warn about #error.  Follows up
	on a patch proposed by Ralf Wildenhues.

2006-04-05  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/status.m4: Replace <space>''<tab> with
	<tab><space> where this makes sense.

2006-04-05  Howard Chu  <hyc@highlandsun.com>  (trivial change)
	    Noah Misch  <noah@cs.caltech.edu>

	* lib/autoconf/general.m4 (AC_PRESERVE_HELP_ORDER): New macro.
	(AC_ARG_ENABLE, AC_ARG_WITH): Adjust.
	* doc/autoconf.texi (Help Formatting): New node.
	* NEWS: Announce AC_PRESERVE_HELP_ORDER.

2006-04-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* TODO, config/Makefile.am, lib/freeze.mk, lib/autoconf/c.m4,
	lib/autoconf/specific.m4, lib/autoconf/status.m4,
	lib/autoconf/types.m4, lib/autotest/general.m4,
	tests/mktests.sh, tests/torture.at: White space cleanup:
	remove some SPACE before TAB, or add quoting ('' or @&t@).

	* NEWS, TODO, bin/autoreconf.in: `filesystem' -> `file system'.

	* doc/autoconf.texi (Shell Substitutions): Document `^' vs. `|'.

2006-04-05  Eric Blake  <ebb9@byu.net>

	* lib/autotest/general.m4 (AT_INIT): Prep AT_*_all, so that an
	empty test suite works.
	* tests/autotest.at (Empty test suite): Remove xfail.

2006-04-05  Noah Misch  <noah@cs.caltech.edu>

	* lib/autoconf/status.m4 (_AC_CONFIG_FOOS): Do not append normalized
	TAGS to ac_config_<foo>s.
	(AC_CONFIG_FILES, AC_CONFIG_HEADERS, AC_CONFIG_LINKS): Do so here.
	(AC_CONFIG_COMMANDS): Append NAME to ac_config_commands without
	normalizing it, consistent it with previous releases.
	* tests/torture.at (Macro calls in AC_CONFIG_COMMANDS tags): New test.

2006-04-05  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (AS_BASENAME_EXPR, AS_DIRNAME_EXPR):
	Use simplified args that Eric Blake originally suggested.

2006-04-04  Paul Eggert  <eggert@cs.ucla.edu>

	* tests/mktests.sh: Don't use 'cat'; just read the files directly.
	Prefer 'sort -u' to 'sort | uniq'.  Filter data before sorting it.
	Use 'comm' rather than N instances of grep; this also fixes a bug
	whereby substrings were incorrectly matched, causing us to not
	generate tests for AC_F77_NAME_MANGLING and AC_FUNC_LSTAT.
	(exclude_list): Exclude empty macros.
	(ac_exclude_list): Exclude AC_INCLUDES_DEFAULT.

	Use awk rather than grep -E or egrep, to avoid
	portability problems with regular expressions containing newlines.
	(exclude_list, ac_exclude_list, au_exclude_list, ac_exclude_script):
	Switch from grep to awk syntax.
	(ac_exclude_script): Renamed from ac_exclude_egrep.
	(au_exclude_script): Renamed from au_exclude_egrep.

2006-04-04  Noah Misch  <noah@cs.caltech.edu>

	* lib/autoconf/general.m4 (_AC_INIT_HELP): Only `configure.in' evidences
	a subdirectory subject to Cygnus `configure'.
	* lib/autoconf/status.m4 (_AC_OUTPUT_SUBDIRS): Likewise.

	* lib/autoconf/headers.m4 (_AC_CHECK_HEADER_MONGREL): Omit the bug
	report request when we have no AC_PACKAGE_BUGREPORT.

2006-04-03  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* THANKS: Update.

	* tests/mktests.sh: Update copyright year in the header of the
	generated files.

	* lib/autoconf/c.m4 (AC_C_INLINE): Do not skip cleanup code.
	(AC_C_RESTRICT): Likewise.  Furthermore, add a function with a
	typedef'ed restricted pointer, to catch a compiler bug on
	HP-UX 11.x, and fix warnings so it passes with -Werror.
	(_AC_PROG_CC_C99): Likewise.
	Reported by Albert Chin <china@thewrittenword.com>.
	* tests/mktests.sh: Do not skip AC_C_INLINE, AC_C_RESTRICT.

2006-04-03  Noah Misch  <noah@cs.caltech.edu>

	* bin/autoscan.in (subdirs): New global.
	(scan_file): Prune directories with configure{,.{ac,in,gnu}}.
	(output): Emit AC_CONFIG_SUBDIRS as needed.
	* tests/autoscan.at (autoscan): Remove XFAIL.

2006-04-03  Noah Misch  <noah@cs.caltech.edu>

	* lib/autoconf/general.m4 (AC_CACHE_SAVE): Use AC_MSG_NOTICE.

2006-04-03  Eric Blake  <ebb9@byu.net>

	* THANKS: Add myself.

2006-04-03  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autotest/general.m4 (AT_INIT): Add `at_testdir' to pointer
	to log, point to testsuite output tree.

2006-04-02  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: AC_PROG_CC and AC_PROG_CXX no longer declare 'exit'.
	* doc/autoconf.texi (Function Portability): Mention that C++
	has trouble with 'exit'.
	(Guidelines): Test programs shouldn't use 'exit'.
	* lib/autoconf/c.m4 (_AC_PROG_CXX_EXIT_DECLARATION):
	Remove; all uses removed.
	(AC_LANG_INT_SAVE(C), AC_C_BIGENDIAN):
	Return from 'main' instead of calling 'exit'.
	* lib/autoconf/functions.m4 (_AC_LIBOBJ_ALLOCA, AC_FUNC_CLOSEDIR_VOID):
	(_AC_FUNC_FNMATCH_IF, AC_FUNC_GETGROUPS):
	(AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK, _AC_FUNC_MALLOC_IF):
	(AC_FUNC_MEMCMP, AC_FUNC_MKTIME, AC_FUNC_MMAP, _AC_FUNC_REALLOC_IF):
	(AC_FUNC_SETPGRP, _AC_FUNC_STAT, AC_FUNC_STRTOD, AC_FUNC_STRERROR_R):
	(AC_FUNC_STRNLEN, AC_FUNC_SETVBUF_REVERSED, AC_FUNC_UTIME_NULL):
	(_AC_FUNC_FORK, _AC_FUNC_VFORK, AC_FUNC_WAIT3): Likewise.
	* lib/autoconf/headers.m4 (AC_HEADER_STDC): Likewise.
	* lib/autoconf/specific.m4 (AC_SYS_RESTARTABLE_SYSCALLS): Likewise.
	* lib/autoconf/types.m4 (AC_TYPE_GETGROUPS): Likewise.
	* tests/compile.at: Likewise.

2006-04-02  Pavel Roskin  <proski@gnu.org>

	* doc/autoconf.texi (AC_PATH_X): Update per 2005-08-26 change.

2006-04-01  Stepan Kasal  <kasal@ucw.cz>

	Clean up _AC_COMPILER_EXEEXT* macros.

	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Don't try to
	  detect exeext, it will be done by _AC_COMPILER_EXEEXT_O; just set
	  ac_file to the name of the default output file and call
	  _AC_COMPILER_EXEEXT_WORKS.  Move the definition of ac_files and the
	  initial `rm' of the candidate files...
	(_AC_COMPILER_EXEEXT): ... here and simplify them.  Moreover, use
	  the same list in subsequent `rm' calls, and for the temporary
	  redefinition of ac_clean_files; call _AC_COMPILER_OBJEXT at the end,
	  and don't call the other _AC_COMPILER_EXEEXT_* macros directly, use...
	(_AC_COMPILER_EXEEXT_TESTS): ... this new macro.
	(_AC_COMPILER_EXEEXT_O): Don't export ac_cv_exeext, it's not needed (or
	  no longer needed) by libtool.  Make it a cache check.
	(_AC_COMPILER_EXEEXT_CROSS): Remove the comment, it was obviously
	  copied here by mistake.
	(AC_NO_EXECUTABLES): Redefine _AC_COMPILER_EXEEXT_TESTS, not
	  _AC_COMPILER_EXEEXT.
	* lib/autoconf/c.m4 (AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC): Do not call
	  _AC_COMPILER_OBJEXT directly.
	* lib/autoconf/fortran.m4 (_AC_PROG_FC): Likewise.

2006-04-01  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sh.m4 (_AS_DIRNAME_PREPARE): New macro.
	(AS_DIRNAME): Use it.
	(_AS_PREPARE): Add _AS_DIRNAME_PREPARE.

	* tests/*.at: Remove the generated ones.

2006-04-01  Stepan Kasal  <kasal@ucw.cz>

	* lib/autotest/general.m4 (AT_INIT): Don't optimize the first PATH walk.

2006-04-01  Eric Blake  <ebb9@byu.net>

	* lib/m4sugar/m4sh.m4 (_AS_PATH_WALK): Optimize nonexistent
	directories, unless optional third argument supplied.
	(AS_UNAME): Don't optimize PATH walk.

	* lib/Autom4te/Struct.pm, lib/autoconf/c.m4: s/non-existent/nonexistent/

2006-04-01  Eric Blake  <ebb9@byu.net>
	and Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sh.m4: Sort sections as implied by the comments,
	and fix some typos.

2006-04-01  Noah Misch  <noah@cs.caltech.edu>

	* lib/autoconf/general.m4 (_AC_INIT_VERSION): Emit script name and
	Autoconf version number despite a zero- or one-argument AC_INIT.

	* bin/autoreconf.in (parse_args): Multiple -v send --verbose to
	subordinate tools.
	* lib/Autom4te/General.pm (getopt): Make -v and -d incremental.
	* doc/autoconf.texi (autoreconf Invocation): Document it.

	* doc/autoconf.texi: Use `Cygwin', `MinGW', and `license' consistently.
	Append LocalWords so ispell-buffer passes cleanly.  Spelling fixes.

2006-04-01  Eric Blake  <ebb9@byu.net>

	* lib/m4sugar/m4sh.m4 (AS_MKDIR_P): Allow use in shell lists.
	* lib/autotest/general.m4: Be tolerant of existing directory when
	  rm failed to remove it.

2006-04-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* bin/autoupdate.in: Redefine m4_location so that warnings print
	the correct lines of the input file by subtracting..
	(_au__first_line): ..this new definition.

	* lib/autoconf/general.m4 (AC_COMPILE_CHECK): Prefer
	AC_MSG_CHECKING over obsolete AC_CHECKING in autoupdated code.
	Remove stray newline in output.
	(AC_FOREACH): AU_DEFUN this as literal for autoupdate, and also
	AC_DEFUN this for autoconf, including the obsoletion diagnose.
	Fixes autoupdating of code where the replacement output contains
	m4sugar macros.
	* lib/autoconf/lang.m4 (AC_LANG_SAVE): Likewise.
	* tests/mktests.sh (ac_exclude_list): Add AC_FOREACH.
	 (au_exclude_list): Add AC_LANG_SAVE.
	* tests/tools.at: Several new tests for all of this.
	* doc/autoconf.texi (Obsoleting Macros): Give a hint about the
	hairy details.
	The AC_LANG_SAVE issue was reported against Libtool by
	Dalibor Topic <robilad@kaffe.org>, and against Autoconf 2.57 by
	Kristian Kvilekval <kris@cs.ucsb.edu>.

2006-04-01  Stepan Kasal  <kasal@ucw.cz>

	* bin/autoupdate.in: Handle m4 builtins and m4sugar macros together--
	  switch all of them on and of when necessary.  Fixes the bug when
	  m4sugar macros (e.g., m4_define) were expanded after the first
	  automatic update (e.g., after AC_PREREQ or AC_INIT).

2006-03-31  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Programming in M4sh): Sharpen the descriptions
	of AS_BASENAME and AS_DIRNAME.  Reported by Stepan Kasal.

	* lib/m4sugar/m4sh.m4 (AS_BASENAME_EXPR): Handle ///, ////, etc.
	correctly.  Problem reported by Eric Blake.
	(_AS_EXPR_PREPARE): Detect Tru64 expr bug.  Problem reported by
	Ralf Wildenhues.

2006-03-30  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Programming in M4sh, Limitations of Usual Tools):
	Tighten up the basename/dirname wording.

2006-03-30  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* Makefile.maint (sc_texi_notab): New check: do not use TABs
	in texinfo files outside of verbatim environments.
	(syntax-check-rules): Update.
	* doc/autoconf.texi (Configuration Headers): Conform to it.

2006-03-30  Chris Pickett <cpicke@cs.mcgill.ca>  (tiny change)

	* doc/autoconf.texi (autoreconf Invocation): Mention that -I for
	  aclocal cannot be given on the command line.

2006-03-29  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Programming in M4sh): Mention AS_BASENAME.
	Give an example for AS_DIRNAME instead of referring to Posix..
	(File System Conventions): Put discussion of // versus / here, and
	modernize it a bit.
	(Limitations of Usual Tools): Add basename.  Remove verbiage
	after dirname, since it got moved to the above sections.
	All this was inspired by a patch proposed earlier by Eric Blake.

2006-03-27  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Quote
	`$0' to protect against spaces.
	* lib/autotest/general.m4 (AT_INIT): Likewise.
	* lib/m4sugar/m4sh.m4 (_AS_LINENO_PREPARE): Likewise, for
	`$0', $as_me.

2006-03-26  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* bin/autoscan.in: The value of find_configure_ac should be
	checked for existence, so we don't barf over a nonexisting
	configure.ac.  Reported by Laurence Darby <ldarby@tuffmail.com>.

2006-03-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* bin/autoupdate.in: Fix some typos.

2006-03-21  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Installation Directory Variables): Fix typo.

	* lib/autoscan/autoscan.list: Refreshed.

2006-03-20  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* tests/local.at (AT_CHECK_ENV): Ignore AC_SUBSTed Objective C
	and Erlang related variables.

	* lib/autoconf/c.m4 (AC_LANG(Objective C), AC_LANG_OBJC)
	(_AC_LANG_ABBREV(Objective C), _AC_LANG_PREFIX(Objective C))
	(AC_LANG_SOURCE(Objective C), AC_LANG_PROGRAM(Objective C))
	(AC_LANG_CALL(Objective C), AC_LANG_FUNC_LINK_TRY(Objective C))
	(AC_LANG_BOOL_COMPILE_TRY(Objective C))
	(AC_LANG_INT_SAVE(Objective C), AC_LANG_PREPROC(Objective C))
	(AC_PROG_OBJCPP, AC_LANG_COMPILER(Objective C), AC_PROG_OBJC)
	(_AC_PROG_OBJC_G): New macros.
	(_AC_ARG_VAR_CPPFLAGS): Adjusted.
	* doc/autoconf.texi (Objective C Compiler): New node.
	(Preset Output Variables): Document OBJCFLAGS.
	(Language Choice): Document `Objective C' language.
	(Fortran Compiler): Fix typo.
	* NEWS: Updated.
	Inspired by a patch from David M. Lloyd <dmlloyd@tds.net>.

2006-03-20  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Default Includes): Fix typo
	  s/AC_HEADERS_STDC/AC_HEADER_STDC/
	(Limitations of Usual Tools): s/unwriteable/unwritable/
	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT, _AC_COMPILER_EXEEXT):
	  Fix typos in the comments.

2006-03-17  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/programs.m4 (AC_PATH_TOOL, AC_CHECK_TOOL, AC_CHECK_TOOLS):
	  Factor out the warning to...
	(_AC_TOOL_WARN): ... this new macro; use `cross_compiling'.
	* tests/local.at (AT_CHECK_MACRO_CROSS): Avoid this warning.
	* tests/semantics.at (AC_C_BIGENDIAN): Likewise.

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES_PREPARE): Do not special
	  case `ac_delim' when writing the sed script.

	* lib/m4sugar/m4sh.m4 (AS_BOURNE_COMPATIBLE): Removed BIN_SH=xpg4,
	  moved DUALCASE=1 ...
	(AS_SHELL_SANITIZE): ... here.
	* doc/autoconf.texi (Special Shell Variables) <BIN_SH>: Do not say
	  that it is set.

	* lib/autoconf/programs.m4 (AC_CHECK_PROG): Quote the parameter of
	  AC_SUBST.
	(_AC_PATH_PROG): Store the result to VARIABLE.
	(AC_PATH_PROG): No need to set VARIABLE again.

	* tests/local.at (AT_CHECK_MACRO_CROSS): New macro, creates two tests:
	  the first one is usual AT_CHECK_MACRO test, the second one checks
	  that the same works when cross-compiling.
	* tests/semantics.at (AC_CHECK_ALIGNOF, AC_CHECK_ALIGNOF struct):
	(AC_CHECK_SIZEOF, AC_CHECK_SIZEOF struct): Use it.

2006-03-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/m4sugar/m4sh.m4 (_AS_DETECT_BETTER_SHELL): Prepend
	the directory `/usr/bin/posix' in the shell search, to prefer
	the Posix shell not only in subsequent spawns as with `$BIN_SH'
	on Tru64.

	* doc/autoconf.texi (contents): To fix texi2html output, hide
	`@setcontentsaftertitlepage' for HTML.
	(Writing Autoconf Macros): Likewise, insert space after `@c'.
	(Leviticus, Numbers, Deuteronomy): Likewise, change `@,c' to
	`@,{c}'.

2006-03-16  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sh.m4 (_AS_PREPARE): Move the IFS setup and CDPATH
	  sanitizing...
	(AS_SHELL_SANITIZE): ...here; mention _AS_PATH_WALK needs IFS set.
	* lib/autoconf/general.m4 (_AC_CANONICAL_SPLIT): Add an explanation
	  why IFS is restored so late; thank you, Ralf, for reminding us.

2006-03-15  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Pretty Help Strings): No need to use cached
	  variables in the examples.

2006-03-14  Romain Lenglet  <rlenglet@users.forge.objectweb.org>

	* doc/autoconf.texi (several sections): Cleaned up documentation for
	macros in erlang.m4.

2006-03-14  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* tests/autotest.at (AT_NO_CMDSUBST): New macro to determine
	failure condition for `$(cmd)' style command substitutions.
	(Parenthetical command substition, Multiline parenthetical
	command substition): Use it.

	* doc/autoconf.texi (Special Shell Variables): Missing word.
	Reported by Keith Marshall <keith.marshall@total.com>.

	* lib/m4sugar/m4sh.m4 (_AS_PATH_WALK): Do not forget to reset
	IFS even in case of empty `$PATH'.

2006-03-12  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autotest/general.m4 (AT_INIT) <at_optarg>: Optimize
	`expr' away if there is nothing to do.
	< --keywords >: Simplify and robustify argument handling.
	Revert erroneous comment from 2005-08-23.  Extend to allow
	keyword negation with `!'.
	Update help message.  Remove broken code to prevent running
	tests multiple times.
	* doc/autoconf.texi (testsuite Invocation) < --keywords >:
	Update and fix the documentation accordingly.
	* tests/autotest.at (Keywords): Renamed to..
	(Keywords and ranges): .. this.  Extended to make sure negated
	keywords, keywords taken from AT_SETUP arguments, and numeric
	test ranges work, and that matching is case-insensitive.

2006-03-11  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/types.m4 (_AC_CHECK_TYPE_NEW): Use a typedef to
	allow to pass unnamed structs even in C++.
	(AC_CHECK_SIZEOF):  Likewise.
	Also fix quoting error in `AC_MSG_FAILURE' arguments.
	* tests/semantics.at (AC_CHECK_ALIGNOF struct, AC_CHECK_SIZEOF
	struct): New tests for unnamed structs, each both native and
	cross-compiling.

	* lib/autoconf/c.m4 (AC_C_TYPEOF): Use typedef to avoid defining
	a structure inside a cast, for C++ conformance.
	* lib/autoconf/types.m4 (AC_CHECK_ALIGNOF): Likewise.
	Also fix quoting error in `AC_MSG_FAILURE' arguments.

	* lib/autoconf/c.m4 (AC_PROG_CC_STDC): If we cannot enable C99
	nor C89 mode, set `$ac_cv_prog_cc_stdc' to `no' instead of
	trying to execute the command `no'.

	* lib/autoconf/lang.m4 (AC_LANG_CONFTEST): AC_DEFUN this, not
	m4_define, so that the requirements of `AC_INCLUDES_DEFAULT' are
	expanded outside.

	* doc/autoconf.texi (autoconf Invocation): Fix typos in trace
	example.  Do not emphasize `$%', it is hardly new and special.
	Reported by Edouard Bechetoille <ebecheto@ens-lyon.fr>.

	* doc/autoconf.texi (Limitations of Usual Tools): Document
	OpenBSD and traditional `grep' failure to handle multiple
	patterns separated by newlines.

2006-03-10  Romain Lenglet  <rlenglet@users.forge.objectweb.org>

	* doc/autoconf.texi (several sections): Add documentation for macros
	in erlang.m4.

2006-03-10  Eric Blake  <ebb9@byu.net>

	* doc/autoconf.texi (Obsolete Macros): Fix wording of
	AC_TRY_LINK_FUNC.

2006-03-10  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: Use @acronym more consistently for acronyms
	like BSD, GPL, LGPL.  Fix minor English typos.
	(AC_STDC_HEADERS, AC_PROG_GCC_TRADITIONAL):
	Mention that these macros are becoming obsolete.
	(AC_STDC_HEADERS, AC_PROG_CC, AC_C_CONST, AC_C_VOLATILE):
	Use more modern terminology for which standard is what.
	(AC_PROG_CC): Mention gcc first, and remove obsolete references to egcs
	and to ansi2knr.
	(AC_PROG_CXX): Likewise.
	(AC_C_PROTOTYPES, Test Functions, AC_LIBOBJ vs LIBOBJS):
	Remove obsolete discussion about how to port to K&R.
	(Guidelines for Test Programs): Suggest AC_HEADER_STDBOOL rather than
	the obsolescent AC_HEADER_STDC.
	(AC_FOO_IFELSE vs AC_TRY_FOO): Don't use #error; test programs
	can't rely on it.

2006-03-08  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* tests/c.at (AC_PROG_CPP without warnings, AC_PROG_CPP via CC):
	Remove stdin redirection from /dev/null to allow pipe to work.

2006-03-08  Paul Eggert  <eggert@cs.ucla.edu>

	* tests/c.at (AC_PROG_CPP without warnings, AC_PROG_CPP via CC):
	Require that /lib/cpp include stdio.h correctly.  Solaris 10's
	doesn't.  Problem reported by D'Arcy A MacIsaac and diagnosed by
	Ralf Wildenhues.

2006-03-06  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/status.m4 (_AC_SED_CMD_LIMIT): The limit for
	HP-UX sed is 99 commands, not 100.
	(_AC_OUTPUT_FILES_PREPARE): Do not count the `}' of an
	_AC_SUBST_FILES fragment.  Separate `{' and `r' commands by
	newline for portability.
	* tests/torture.at (Torturing config.status): Also test 100
	AC_SUBST_FILE invocations.  Fix test to actually verify the
	AC_CONFIG_FILES output.
	* doc/autoconf.texi (Limitations of Usual Tools): Document HP-UX
	command, label, and read-file `r' limits.  Unify HP-UX spelling.

	* tests/Makefile.am (edit, $(wrappers)): Do not use `$<' in
	non-suffix rule.
	($(TESTSUITE_GENERATED_AT)): Use `$(srcdir)` for the benefit of
	non-GNU make.
	(autoconfdir, $(AUTOCONF_FILES)): Likewise.
	* tests/mktests.sh: Small shell portability fixes.

2006-03-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Caching Results): Fix the examples to use a
	recommended quoting style and discard unwanted output.

2006-03-05  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autotest/general.m4 (_AT_NORMALIZE_TEST_GROUP_NUMBER): New macro.
	(AT_INIT): Use it, to remove arbitrary limit of 999,999 test
	cases, and to work around Tru64 expr bug.

2006-03-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Limitations of Usual Tools): Mention Tru64
	expr bug that turns the result of a regex match into a number if
	possible.

2006-03-04  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/types.m4 (AC_CHECK_ALIGNOF): Work around
	HPUX compiler bug, similarly to AC_CHECK_SIZEOF, as documented
	in section `Specific Compiler Characteristics'.

2006-03-04  Eric Blake  <ebb9@byu.net>

	* lib/autoconf/functions.m4 (AC_FUNC_STRERROR_R): Avoid unused
	variable warning.

2006-03-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADER): Force correct
	order of variable initialization, so even the Solaris 2.6 shell
	can create a config header correctly.  Fixes lots of test suite
	failures.

2006-02-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Text processing Macros): New node to
	document the m4sugar macros m4_re_escape, m4_tolower,
	m4_toupper, m4_split, m4_normalize, m4_append, m4_append_uniq.

2006-02-22  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/libs.m4 (_AC_PATH_X_DIRECT): Fix typo:
	XrmInitialize (0) -> XrmInitialize ().
	Reported by Toshio Kuratomi.

2006-02-21  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/m4sugar/m4sh.m4 (AS_IF): Extend to allow more than one
	test, as in `if tests; then cmd1; elif ...; else ...; fi'.
	* doc/autoconf.texi (Programming in M4sh): Adjusted.
	* tests/m4sh.at (AS_IF and AS_CASE): Test this.  Also make sure
	both macros are defun'ed so that required macros are evaluated
	outside.

	* doc/autoconf.texi (Prerequisite Macros): State more precisely
	where a required macro will be expanded.
	(Coding Style): Another reason not to use `m4_define'.

2006-02-21  Eric Blake  <ebb9@byu.net>

	* lib/autoconf/general.m4 (_AC_LIBOBJ): Minor optimization.

2006-02-20  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Looping constructs): New node, to
	document m4_for, m4_foreach, m4_foreach_w, and mention
	obsolete AC_FOREACH.
	(Obsolete Macros): Document AC_FOREACH.
	* lib/m4sugar/m4sugar.m4 (_m4_for): Fix declaration comment.
	(m4_for): Fix to never loop (almost) endlessly, work correctly
	with arithmetic expressions in arguments, a step of zero or
	non-integer multiple of the interval, and avoid integer
	overflow.
	* tests/m4sugar.at: New test for m4_for, m4_foreach, and
	m4_foreach_w.

2006-02-20  Romain Lenglet  <rlenglet@users.forge.objectweb.org>

	Add basic support for Erlang, both for configuring Erlang/OTP
	tools, and Erlang as a conf test language.
	* lib/autoconf/erlang.m4: New file.
	* lib/autoconf/autoconf.m4: Add erlang.m4.
	* lib/autoconf/Makefile.am (dist_autoconflib_DATA): Likewise.
	* lib/freeze.mk (autoconf_m4f_dependencies): Likewise.
	* NEWS: Add short description of new macros.
	* THANKS: Add Romain Lenglet.

2006-02-20  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Shellology) <pdksh>: Document that pdksh as
	native /bin/sh may not set KSH_VERSION (seen on OpenBSD).

2006-02-15  Eric Blake  <ebb9@byu.net>

	* lib/autoconf/general.m4 (AC_CHECK_DECL): Avoid unused variable
	warning.

2006-02-15  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/m4sugar/m4sh.m4 (AS_CASE): New macro.
	(_AS_CASE): Private helper macro.
	* tests/m4sh.at: Basic tests for AS_IF and AS_CASE.
	* doc/autoconf.texi (Programming in M4sh): Document AS_CASE.
	Fix syntax of AS_IF description
	(Prerequisite Macros): Mention AS_IF and AS_CASE as workarounds
	for the AC_REQUIRE mess.
	* NEWS: Mention AS_CASE, AS_BOURNE_COMPATIBLE, and
	AS_SHELL_SANITIZE.

2006-02-14  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: Minor style cleanup.
	Be consistent about spaces after commas.
	Insert [] where empty args look a bit funny.
	Fix some "i.e." and "e.g." usages.
	Try to avoid "X/Y" usages.
	Don't be pedantic about "ISO C99"; just say C99.
	Prefer GNU style for spaces in front of parens.
	(Function Portability): Comment about C89 versus C99
	signed integer division.
	(Particular Headers): Use current gnulib style for dirent
	includes.

2006-02-14  Stepan Kasal  <kasal@ucw.cz>
	and Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* bin/autoupdate.in (handle_autoconf_macros): Fix updating of
	macros without parameters.
	* lib/autoconf/autoupdate.m4 (AU_ALIAS): Likewise.
	* doc/autoconf.texi (Obsoleting Macros): Document AU_ALIAS.
	* tests/tools.at (autoupdating AU_ALIAS): New test for AU_ALIAS
	`$#' bug.
	(autoupdate): Updated to match AU_ALIAS fix.

2006-02-13 Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
	and Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Programming in M4sh): Document
	AS_BOURNE_COMPATIBLE and AS_SHELL_SANITIZE.

2006-02-13  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/m4sugar/m4sh.m4 (_AS_BOURNE_COMPATIBLE): Renamed to..
	(AS_BOURNE_COMPATIBLE): ..this.
	(_AS_RUN, AS_SHELL_SANITIZE): Adjusted all callers.

2006-02-12  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/install.texi (Defining Variables): Tighten up the
	CONFIG_SHELL wording.

2006-02-12 Paul Eggert  <eggert@cs.ucla.edu>
	and Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/m4sugar/m4sh.m4 (_AS_BOURNE_COMPATIBLE): Look at the output
	of (set -o) rather than testing whether (set -o posix) succeeds,
	to work around a bug in the AIX 5.3 shell.  Problem originally
	reportd by Howard Chu for libtool.

2006-02-10  J.T. Conklin  <jtc@acorntoolworks.com>

	* doc/autoconf.texi (Running the Compiler, Running the Linker):
	Changes the macro arguments in summaries to match the
	descriptions.

2006-02-04  Stepan Kasal  <kasal@ucw.cz>

	* doc/install.texi (Defining Variables): Classify the `CONFIG_SHELL'
	hint as ``a workaround for a bug.''

2006-01-31  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* bin/autoreconf.in: New option `--no-recursive'.
	Improve wording for subpackages a bit.
	* doc/autoconf.texi (autoreconf Invocation): Updated.
	* NEWS: Updated.

	* doc/install.texi (Defining Variables): Put `CONFIG_SHELL'
	in environment of `configure', not the command line.
	Reported by Howard Chu <hyc@highlandsun.com>.

2006-01-25  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Builtins): Document the
	problem with "trap -".

2006-01-23  Steven G. Johnson  <stevenj@fftw.org>

	* lib/autoconf/fortran.m4 (_AC_FC_LIBRARY_LDFLAGS, _AC_FC_DUMMY_MAIN):
	(_AC_FC_MAIN, __AC_FC_NAME_MANGLING): Use _AC_LANG in check
	messages to differentiate Fortran and Fortran 77 tests.
	(AC_FC_SRCEXT, AC_FC_FREEFORM): Use AC_LANG_PUSH/POP instead of
	AC_LANG_ASSERT, to allow use in mixed-language projects.

2006-01-23  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/c.m4 (AC_LANG_FUNC_LINK_TRY(C)): Prefer "defined
	FOO" to "defined (FOO)".
	* lib/autoconf/functions.m4 (_AC_LIBOBJ_ALLOCA): Likewise.
	* lib/autoconf/headers.m4 (AC_HEADER_STAT): Likewise.
	* lib/autoconf/specific.m4 (AC_XENIX_DIR): Likewise.
	* tests/tools.at (ifnames): Likewise.

2006-01-21  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/m4sugar/m4sh.m4 (AS_TMPDIR): Do not pass `-q' to mktemp.
	* lib/Autom4te/General.pm (mktmpdir): Likewise.
	(END): Improve error message a bit.
	Reported by Bruce Korb <bkorb@gnu.org>.

2006-01-12  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/fortran.m4 (_AC_FC_LIBRARY_LDFLAGS): Ignore
	`-LIST:' and `-LNO:', for PathScale 2.3 compilers.

2006-01-11  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Header Portability): On Solaris 8, sys/ptem.h
	requires sys/stream.h.  Reported by Oliver Kiddle.

2006-01-11  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
	    Stepan Kasal  <kasal@ucw.cz>

	* lib/autotest/general.m4 (AT_INIT): When ensuring writability
	before the removals of test dirs, use `find' to avoid modification
	of symlinked directories.

2006-01-11  Steven G. Johnson  <stevenj@alum.mit.edu>

	* lib/autoconf/fortran.m4 (AC_F77_DUMMY_MAIN, AC_FC_DUMMY_MAIN):
	Don't ignore the macro arguments.

2006-01-11  David Thompson  <dthompsn@vizsolutions.com>

	* lib/autoconf/c.m4 (_AC_PROG_CXX_EXIT_DECLARATION): Add `exit'
	declaration that works for MSVC.

2006-01-11  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/lang.m4 (_AC_COMPILER_OBJEXT_REJECT):
	Add `*.map' and `.inf' for Green Hills compiler.
	Reported by Stefan Seefeld <stefan@codesourcery.com>.

	* lib/m4sugar/m4sugar.m4 (m4_text_wrap): Handle quadrigraphs
	correctly: pad with spaces after FIRST_PREFIX if necessary,
	and compute string lenghts with `m4_qlen' instead of `m4_len'.
	* lib/m4sugar/m4sh.m4 (AS_HELP_STRING): Comments updated.
	* tests/m4sh.at (AS_HELP_STRING): Test extended.
	* NEWS: Updated.
	Reported by numerous people, numerous times.

2006-01-05  Paul Eggert  <eggert@cs.ucla.edu>

	* bin/autoconf.as, bin/autoheader.in, bin/autom4te.in
	* bin/autoreconf.in, bin/autoscan.in, bin/autoupdate.in, bin/ifnames.in:
	* lib/autoconf/general.m4, lib/autoconf/status.m4:
	* lib/autotest/general.m4, tests/local.at:
	Update copyright year to 2006.

	* Makefile.maint (sc_root_tests): Use the recommended style s/a/b/ for
	sed substitutions.
	* doc/autoconf.texi (Installation Directory Variables): Use s|a|b|
	for file names, again.  Reported by Noah Misch.
	(Coding Style): Explain that s|a|b| is preferred for file names.
	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES_PREPARE): Prefer s/a/b/.
	(AC_OUTPUT_MAKE_DEFS): Likewise.
	* lib/autotest/general.m4 (AT_INIT): Likewise.
	* lib/m4sugar/m4sh.m4 (_AS_LINENO_PREPARE): Likewise.
	* tests/local.at (AT_CHECK_AUTOM4TE): Likewise.

	Fix Posix-conformance bugs re use of { command in sed scripts,
	and improve the sed-related documentation a bit.
	* doc/autoconf.texi (Installation Directory Variables): Use
	our own style advice re 's,a,b,' versus 's|a|b|'.  Use "Sed"
	rather than "sed" when talking about Sed in general.
	(Particular Programs): Likewise.
	(Coding Style): y is like s with respect to / and ,.
	(Limitations of Usual Tools): Document the weird restrictions
	that Posix has about { }.  Use better quoting.
	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES_PREPARE, _AC_OUTPUT_HEADER):
	Rewrite to conform to Posix rules about { } in sed scripts.
	* lib/m4sugar/m4sh.m4 (AS_DIRNAME_SED, AS_BASENAME_SED): Likewise.
	* tests/foreign.at (Libtool): Likewise.
	* tests/semantics.at (AC_CHECK_PROG & AC_CHECK_PROGS):
	Use our own style advice re 's,a,b,' versus 's|a|b|'.

2006-01-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/status.m4: Fix typo.

	* lib/autoconf/fortran.m4 (_AC_FC_LIBRARY_LDFLAGS): Ignore
	singly- or doubly-quoted arguments to `-cmdline', `-ignore',
	`-def', for the benefit of Portland `pgf90 -Mipa'.
	Reported by Christopher Hulbert <cchgroupmail@gmail.com>.

2006-01-04  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: Update copyright (and other) dates to 2006.
	* doc/autoconf.texi (Shellology): Mac OS X 10.2 changed the default
	shell from zsh to bash.

2005-12-31  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/programs.m4 (_AC_PROG_GREP): Use $PATH_SEPARATOR;
	  ":" caused problems on OS/2-EMX.  Suggested by Andrew Belov.

2005-12-29  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Shell Substitutions): Warn about unbalanced
	parentheses in $(...).  Problem reported by Eric Blake.

2005-12-12  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Usual Tools):
	Mention which characters can be escaped with \ in portable regular
	expressions used in grep, sed, expr.  Mention the leading ^ problem
	with expr.  Clean up some confusing wording.  Mention which
	grep options are portable.

2005-12-09  Stepan Kasal  <kasal@ucw.cz>

	* tests/local.at (AT_CHECK_AUTOM4TE): Fix typo in the comment.

2005-12-02  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Builtins): Fix typos in previous
	patch, noted by Ralf Wildenhues.

2005-12-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/m4sugar/m4sh.m4 (_AS_BOURNE_COMPATIBLE): Try `set -o
	posix' unconditionally, for pdksh in `native sh' emulation.

2005-12-01  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Shellology): Document eval $? problem
	with ash.
	(Limitations of Builtins): Likewise.

2005-11-10  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Pass
	CONFIG_SHELL in the environment of the configure rerun.
	* doc/autoconf.texi (Here-Documents, config.status Invocation):
	Suggest passing CONFIG_SHELL absolute, and in the environment
	rather than as option.

2005-11-09  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES_PREPARE):
	Fix quoting of output line (triggered for many AC_SUBST_FILEs).
	Fix macro quoting.  Fix output for n * 98 substituted variables.

2005-11-08  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/status.m4 (_AC_OUTPUT_MAIN_LOOP): Initialize
	`tmp' to avoid file removal race.

2005-11-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/general.m4 (_AC_INIT_DEFAULTS): Initialize
	ac_clean_files and LIBOBJS.

2005-11-06  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/programs.m4 (AC_CHECK_PROG, AC_PATH_PROG):
	Factor functionality to..
	(_AC_CHECK_PROG, _AC_PATH_PROG): these new macros, but only
	`AC_SUBST($1)' in the public version.
	(AC_CHECK_TOOL, AC_PATH_TOOL, AC_PATH_TARGET_TOOL)
	(AC_CHECK_TARGET_TOOL): Use internal versions for ac_ct_* and
	ac_pt_* variables.

2005-11-01  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/c.m4 (AC_PROG_CC_C_O): Remove the comment about 8+3
	filesystems.

2005-11-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* NEWS: Move AH_HEADER mention to right place.

2005-10-27  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/c.m4 (AC_PROG_CC_C_O): "conftst2" -> "conftest2"
	* lib/autoconf/fortran.m4 (_AC_PROG_FC_C_O): Likewise.

2005-10-25  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/c.m4 (AC_PROG_CC_C_O): rm -f conftst2.*, not only
	conftst2.$ac_objext.
	* lib/autoconf/fortran.m4 (_AC_PROG_FC_C_O): Likewise.

2005-10-24  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/c.m4 (AC_PROG_CC_C_O): Use conftst2.o instead of
	conftest.o, to see whether the compiler really obeys; rm the object
	file before and after the test and register it with ac_clean_files.
	* lib/autoconf/fortran.m4 (_AC_PROG_FC_C_O): Likewise.

2005-10-21  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES_PREPARE): When determining,
	the delimiter CEOF$ac_eof: fix quoting of CEOF[0-9]* and modify the
	code so that the most common case requires less forks.

2005-10-20  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Shell Substitutions}: Document that ${10} is
	not portable; thanks to Paul Eggert and Alexandre.

	* NEWS: Fix an old typo.

2005-10-20  Jim Meyering  <jim@meyering.net>

	* doc/autoconf.texi: Typo: s/feature/features/ in ``the features of
	the latter'', in two places.

2005-10-19  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Generating Sources): AC_LANG_PROGRAMS ->
	AC_LANG_PROGRAM, fixing a typo.  Don't give details about
	the inner workings of AC_LANG_FUNC_LINK_TRY.
	* lib/autoconf/c.m4 (AC_LANG_CALL(C)): Reformat to match
	AC_LANG_FUNC_LINK_TRY.  This involves returning the value returned
	by the function rather than ignoring it.
	(AC_LANG_FUNC_LINK_TRY(C)): Call the function rather than simply
	comparing its address.  Intel's interprocedural optimization was
	outsmarting the old heuristic.  Problem reported by
	Mikulas Patocka.

2005-10-19  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (AC_SUBST): Remove an obsolete comment.

2005-10-05  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sugar.m4 (_m4_map): New macro.
	(m4_map, m4_map_sep): Use it.  Handle the empty list correctly.

2005-10-04  Stepan Kasal  <kasal@ucw.cz>

	* lib/autotest/general.m4 (AT_INIT): Really make the subtree writable
	before removing it (chmod -R u+rwx); there are three instances of this.

2005-10-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
	    Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/status.m4 (_AC_OUTPUT_SUBDIRS): Balance parentheses.
	* lib/autotest/general.m4 (AT_INIT): If the test dir already exists,
	make its content writable before removing it.  Remove an errorneous
	comment from the end, where the logs of the failed tests are copied
	to the main log file.

2005-09-27  Stepan Kasal  <kasal@ucw.cz>

	* tests/semantics.at (AC_C_BIGENDIAN): Pass --force to autoheader,
	  in case the computer is too quick.  Double quote the configure.ac
	  snippets.

	* tests/local.at (AT_CHECK_AUTOCONF): Always pass --force to prevent
	  problems if the testsuite were running too fast.

2005-09-18  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/libs.m4 (_AC_PATH_X_DIRECT): Look for X11/Xlib.h
	and XrmInitialize rather than X11/Intrinsic.h and XtMalloc
	(which belong to Xt, not X itself).  See Debian bug 327655.
	* NEWS: Mention this.

2005-09-07  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/c.m4 (AC_LANG_SOURCE(C)): Remove an incorrect comment.

2005-09-06  Paul Eggert  <eggert@cs.ucla.edu>

	* config/move-if-change: Don't output "$2 is unchanged";
	suggested by Ben Elliston.  Handle weird characters correctly.

2005-09-06  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/libs.m4 (AC_SEARCH_LIBS): Merge the two AC_LINK_IFELSE
	  calls, so that the final expansion of this macro is shorter.
	  Create the conftest.$ac_ext outside the `for' loop, to speed the run.
	  Do not use `break' in the argument to AC_LINK_IFELSE, it would skip
	  the cleanup there.  Use AS_VAR_* macros, to be more general.
	* tests/semantics.at (AC_SEARCH_LIBS): Check for the cleanup.

	* lib/autoconf/general.m4: Use AS_IF where appropriate.

	* lib/m4sugar/m4sh.m4 (AS_IF): Use m4_default.

2005-09-01  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Configuration Headers): Add an index entry
	  for AH_HEADER.

2005-08-26  Pavel Roskin  <proski@gnu.org>

	* lib/autoconf/libs.m4 (_AC_PATH_X_XMKMF): Use shell variable
	XMKMF to locate xmkmf.  Make XMKMF precious.  Export CC when
	running xmkmf.

2005-08-26  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (_AS_VERSION_COMPARE_PREPARE):
	The previous patch didn't work, so try a better one.

2005-08-26  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Programming in M4sh) <AS_TR_CPP>: Fix m4 quoting
	in the example.  Reported by Bruno Haible.
	<AS_TR_SH>: Likewise.  Also modify the example to be more convincing:
	"if $undefined_var;" succeeds with my shell.

	* lib/autoconf/general.m4 (AC_CANONICAL_BUILD, AC_CANONICAL_HOST,
	AC_CANONICAL_TARGET): Define by AC_DEFUN, no need to use AC_DEFUN_ONCE;
	but change the m4_divert_text to m4_divert_once.

2005-08-25  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (_AS_VERSION_COMPARE_PREPARE):
	Work around bug in Solaris /usr/xpg4/bin/awk.
	The bug is present in at least Solaris 8 through 10.

2005-08-24  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (_AC_CANONICAL_SPLIT): Simplify; rejecting
	some evil values and relying on the fact that $* concatenates the
	parameters by the first character from IFS.

2005-08-23  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>,
	    Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/status.m4 (_AC_CONFIG_REGISTER_DEST): When the
	first header appears, define AH_HEADER.
	* doc/autoconf.texi (Configuration Headers): Document AH_HEADER.
	Update limitations about when to call AC_CONFIG_HEADERS.
	(Configuration Commands): Document that AC_CONFIG_COMMANDS_PRE
	parameter can call AC_SUBST, AC_DEFINE, or AC_CONFIG_FOOS; explain
	that AC_CONFIG_COMMANDS_PRE and AC_CONFIG_COMMANDS_POST are not
	``Configuration Actions''; fix their index entries.

	* lib/autotest/general.m4 (AT_INIT): Process multiple keywords
	options correctly.  Process N-M as M-N if M is smaller than N.
	Process ranges correctly so that N-N will run only N.
	Sort and uniquify the tests that will be run.  If there is more
	than one test, reinsert the banners for the tests.
	* tests/autotest.at (Keywords): Unmark XFAIL.

2005-08-23  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (_AC_DEFINE_Q): Strip the parameter list
	  before passing the macro name to AH_TEMPLATE.

	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): config.status
	  now opens log after option processing; in particular, --version
	  and --help do not touch config.log.

	* Makefile.maint: Revert the change from 2005-08-12.

2005-08-22  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (AC_ARG_ENABLE, AC_ARG_WITH): Factor out
	  common code to...
	(_AC_ENABLE_IF, _AC_ENABLE_IF_ACTION): ... these new macros.

2005-08-21  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Using Autotest, testsuite Scripts)
	(Autotest Logs, Writing testsuite.at, testsuite Invocation):
	Language cleanup.

	* doc/autoconf.texi (Defining Symbols, Changed Results):
	Prepend to LIBS, not append, in examples.

2005-08-16  Stepan Kasal  <kasal@ucw.cz>

	When building in place, set srcdir="."; suggested by Tim Van Holder.

	* lib/autoconf/general.m4 (_AC_INIT_SRCDIR): Do this; to recognize
	  build in place, we need ac_pwd, and thus have to AC_REQUIRE ...
	(_AC_INIT_DIRCHECK): ... this macro and AC_DEFUN both of them.
	* lib/autoconf/status.m4 (_AC_SRCDIRS): Fix a comment: srcdir="."
	  does not mean "no --srcdir option".

2005-08-15  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* tests/autoscan.at (autoscan): New file.
	* tests/suite.at: Use it.
	* tests/Makefile.am (TESTSUITE_HAND_AT): Add it.
	Reported against Libtool by Gideon Go <gideon.go@gmail.com>.

	* tests/autotest.at (Keywords): Test keywords combinations.

2005-08-12  Stepan Kasal  <kasal@ucw.cz>

	* Makefile.maint (GZIP_ENV): When checking the help text of gzip,
	  add "2>&1"; gzip 1.2.4 prints help on stderr.

2005-07-27  Stepan Kasal  <kasal@ucw.cz>

	* lib/autotest/general.m4 (_AT_DECIDE_TRACEABLE): The symbol at_reason
	was pushdef'ed twice while popped only once.  Push it only once.
	(_AT_CHECK): Cosmetic changes to the "case $at_status" command.

2005-07-26  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/status.m4 (_AC_OUTPUT_SUBDIRS): The message is now
	prefixed by mere "===", not "configure: === ".

2005-07-25  Paul Eggert  <eggert@cs.ucla.edu>

	* Makefile.maint: Update from Bison.

	* lib/m4sugar/m4sugar.m4 (m4_strip): Comment fix---change tab to
	"<tab>" in comment, so that the point is understandable.

2005-07-25  Stepan Kasal  <kasal@ucw.cz>

	Rewrite substantial part of lib/autoconf/status.m4.
	The main change is that CONFIG_FILES, CONFIG_HEADERS, CONFIG_LINKS,
	and CONFIG_COMMANDS are not processed in four separate loops.
	Instead, there is one main loop.  This alows that the common code
	is expanded only once, thus config.status (and configure) is smaller.

	The registration mechnism in AC_CONFIG_FILES and cousins also changed;
	the AC_LIST_FILES and cousins macros are no longer used.

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES, _AC_OUTPUT_HEADERS,
	_AC_OUTPUT_LINKS, _AC_OUTPUT_COMMANDS): Renamed to ...
	(_AC_OUTPUT_FILE, _AC_OUTPUT_HEADER, _AC_OUTPUT_LINK,
	_AC_OUTPUT_COMMAND): ..., respectively.  These macros no longer
	contain the initialization, nor the for loop, nor the associated
	commands; all these go to ...
	(_AC_OUTPUT_MAIN_LOOP): ... this new macro, called from
	_AC_OUTPUT_CONFIG_STATUS.
	(_AC_CONFIG_SPLIT, _AC_CONFIG_SPLIT_SOURCE_DEST, _AC_CONFIG_SPLIT_FILE_IN):
	Nuked; the code was merged into _AC_OUTPUT_MAIN_LOOP.
	(_AC_OUTPUT_FILE): The creation of the sed script ...
	(AC_OUTPUT): ... and the setup of ac_vpsub goes to ...
	(_AC_OUTPUT_FILES_PREPARE): ... a new macro, also called from
	_AC_OUTPUT_MAIN_LOOP.
	(_AC_CONFIG_FILES, _AC_CONFIG_HEADERS, _AC_CONFIG_LINKS,
	_AC_CONFIG_COMMANDS): Use ...
	(_AC_CONFIG_FOOS): ... this new macro, which uses these ...
	(_AC_CONFIG_REGISTER, _AC_CONFIG_REGISTER_DEST): ... new macros.
	(_AC_CONFIG_FILE, _AC_CONFIG_HEADER, _AC_CONFIG_LINK,
	_AC_CONFIG_COMMAND, _AC_CONFIG_DEPENDENCIES): No longer needed.
	(_AC_CONFIG_DEPENDENCY): Update, it uses these ...
	(_AC_CONFIG_DEPENDENCY_DEFAULT, _AC_FILE_DEPENDENCY_TRACE_COLON):
	... new macros.
	(_AC_CONFIG_UNIQUE): Update.
	(AC_LIST_FILES, AC_LIST_HEADERS, AC_LIST_LINKS, AC_LIST_COMMANDS):
	Replaced by this ...
	(_AC_LIST_TAGS): ... new common macro.
	(AC_LIST_FILE_COMMANDS, AC_LIST_HEADER_COMMANDS, AC_LIST_LINK_COMMANDS,
	AC_LIST_COMMAND_COMMANDS): Replaced by this ...
	(_AC_LIST_TAG_COMMANDS): ... new common macro.
	(_AC_CONFIG_COMMANDS_INIT): Moved top to the `registration' section;
	this didn't belong to the `config commands' section.
	(_AC_OUTPUT_COMMANDS_INIT): Don't initialize, m4_ifdef is our friend.
	(AC_CONFIG_COMMANDS_PRE, AC_OUTPUT_COMMANDS_PRE,
	AC_CONFIG_COMMANDS_POST): Moved to a new section, these didn't belong
	to the `config commands' section either.
	(AC_CONFIG_SUBDIRS): Don't touch diversion DEFAULTS.
	(_AC_LIST_SUBDIRS): Don't initialize, m4_ifdef is our friend.

	... and many changes to the comments nearby.

	* lib/autoconf/general.m4 (_AC_INIT_DEFAULTS): At the end of the day,
	set ac_subdirs_all='_AC_LIST_SUBDIRS'.
	* tests/torture.at (AC_CONFIG_FILES, HEADERS, LINKS and COMMANDS):
	AC_CONFIG_COMMANDS(command:input,...) is no longer allowed.
	(#define header templates): The comment at the top of the generated
	header now includes the name(s) of the source file(s).

	Several unrelated small changes:

	* lib/autoconf/general.m4 (AC_CACHE_VAL): Be didactic, quote the first
	parameter to AC_DIAGNOSE.
	* lib/autoconf/status.m4 (AC_CONFIG_SUBDIRS): Likewise.
	(_AC_LINK_FILES_CNT): Don't AU_DEFUN this; it causes confusing messages
	with autoupdate; use m4_define_default inside AU_DEFUNed AC_LINK_FILES.
	(AC_OUTPUT): In the compatibility code, use m4_ifvaln, to be consistent
	with AU::AC_OUTPUT.
	(AU::AC_OUTPUT): Don't double-quote $2 and $3, the compatibility code
	in AC_OUTPUT doesn't double-quote it either.
	* tests/tools.at (autoupdate): AU::AC_OUTPUT no longer double-quotes the
	parameters.

2005-07-10  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/fortran.m4 (_AC_PROG_FC_V_OUTPUT): Document which
	versions of Portland Group compiler produce single- and double-quoted
	-cmdline argument.  Reported by Steven G. Johnson <stevenj@fftw.org>
	and Ole Holm Nielsen <Ole.H.Nielsen@fysik.dtu.dk>.

2005-07-07  Paul Eggert  <eggert@cs.ucla.edu>

	* tests/local.at (AT_CONFIG_CMP): Ignore lines like "LIBS=''" too.
	This is a corrected version of yesterday's patch.

2005-07-07  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/status.m4 (_AC_OUTPUT_SUBDIRS): Report the full
	path, too; insert a "===" to emphasize the line.

	* lib/autoconf/general.m4 (AC_CANONICAL_BUILD): Rename
	  ac_cv_build_alias to ac_build_alias.
	(AC_CANONICAL_HOST, AC_CANONICAL_TARGET): Simplify.

	On 2005-02-24, an unintentional AC_SUBST([CC]) was introduced; this
	change eliminates it.  Problem reported by Alexandre Duret-Lutz.
	* lib/autoconf/general.m4 (_AC_ARG_VAR_PRECIOUS): Move the AC_SUBST ...
	(AC_ARG_VAR): ... here.
	(_AC_INIT_PREPARE): Call AC_SUBST for build_alias, host_alias and
	  target_alias.

	Keep a list of all precious variables and process them with one simple
	for loop, instead of expanding all commands, or, OTOH, complicated
	processing of output of "set".
	* lib/autoconf/general.m4 (_AC_ARG_VAR_PRECIOUS): Acumulate the
	variable names in new macro...
	(_AC_PRECIOUS_VARS): ... which will be assigned to ac_precious_vars.
	(_AC_ARG_VAR_STORE): New macro which writes to diversion PARSE_ARGS
	  a loop to assign all ac_env_* and ac_cv_env_* variables.
	(_AC_ARG_VAR_VALIDATE): Use shell variable ac_precious_vars, divert
	  to INIT_PREPARE.
	(_AC_INIT_DEFAULTS): At the end, if _AC_PRECIOUS_VARS is set, assign
	  its value to shell variable ac_precious_vars and call
	  _AC_ARG_VAR_STORE and _AC_ARG_VAR_VALIDATE.
	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Don't call
	  _AC_ARG_VAR_VALIDATE.

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Move AC_LANG_PUSH(C)
	  and the AC_SUBSTs ...
	(AC_INIT): ... here.

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Changed the title of
	  the ac_subst_files section in config.log.

	* tests/local.at (AT_CONFIG_CMP): Revert Paul's previous change.

2005-07-06  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: New macro AC_C_TYPEOF.
	* doc/autoconf.texi (C Compiler): Document AC_C_TYPEOF.
	* lib/autoconf/c.m4 (AC_C_TYPEOF): New macro.
	* tests/c.at (C keywords): Test AC_C_TYPEOF.

	Fix problems reported by Nicolas Joly.
	* tests/base.at (Input/Output): Ignore 'loading site script' chatter.
	* tests/local.at (AT_CONFIG_CMP): Ignore lines like "LIBS=''" too.
	They are generated by the Tru64 v5.1B shell.

2005-07-05  Stepan Kasal  <kasal@ucw.cz>

	Fix my changes from 2005-07-01; reported by Noah Misch.
	* lib/autoconf/status.m4 (_AC_CONFIG_DEPENDENCIES): Fix the
	description, the macro now accepts only a single tag.
	(_AC_CONFIG_UNIQUE): Likewise; s/AC_File/[$1]/

	Fix cases when the varsions of Autoconf and Autotest don't match.
	Reported by Noah Misch.
	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): Set also
	at_top_builddir, for compatibility with older autotest.
	* lib/autotest/general.m4 (AT_INIT): If at_top_build_prefix
	is not set, use at_top_builddir, for compatibility with older
	versions of autoconf.

2005-07-04  Paul Eggert  <eggert@cs.ucla.edu>

	* bin/autom4te.in ($m4): Catch usages like --nesting-limit=2048.
	Problem reported by Patrick Welche.

2005-07-03  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (AC_ARG_PROGRAM): Use &, not |, in
	sed substitution command, so that we allow | in program prefixes
	and program suffixes.  (& is a problem anyway; we're not fixing
	that here.)
	* lib/autoconf/status.m4 (AC_CONFIG_FILES): Likewise, for
	configure_input, top_builddir, srcdir, etc.
	* lib/autotest/general.m4 (AT_INIT): Likewise, for
	PATH_SEPARATOR in AUTOTEST_PATH.

2005-07-02  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autoconf/general.m4 (AC_SITE_LOAD): Rewrite the
	for loop over config.site files using `set', to allow
	directory names containing IFS characters.

2005-07-01  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (_AC_INIT_DIRCHECK): Remove the tests for
	directories with weird names.  Apparently some people like living
	on the edge.  However, improve the test that "pwd" actually does
	report a name for the working directory.
	* NEWS: Remove the claim that we test for funny chars in dir names.

2005-07-01  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (AC_FOREACH): Make obsolete; it's
	replaced ...
	* lib/m4sugar/m4sugar.m4 (m4_foreach_w): ... by this new macro.
	* lib/autoconf/status.m4 (_AC_CONFIG_DEPENDENCIES, _AC_CONFIG_UNIQUE):
	Now accept a single tag, not whitespace separated list.
	(AC_CONFIG_SUBDIRS): Call _AC_CONFIG_UNIQUE in a m4_foreach_w loop.

2005-06-30  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Configuration Headers): Change the explanation
	about #include <config.h>.
	(Generic Functions): Mention the Gnulib project.
	(Limitations of Usual Tools) <sed>: Another minor rephrasing.

	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Use a here
	document to output the default config_* lists to config.status.
	Don't recognize option --file, if the functionality is not there.
	Likewise for --header; moreover, recognize --he and --h as shortcuts
	for --help in that case.

	* lib/autoconf/status.m4: Fix the order of the "sections", so that it
	matches the order of execution.  No code changed.

2005-06-30  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/fortran.m4 (_AC_PROG_FC_V_OUTPUT): Fix also for
	single-quoted -cmdline argument in Portland Group compiler.
	Reported against LAM by Ole Holm Nielsen <Ole.H.Nielsen@fysik.dtu.dk>.

2005-06-30  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autom4te.in (Automake-preselections): Preselect AC_SUBST_TRACE.

2005-06-29  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (File Descriptors): ksh doesn't pass open file
	descriptors to child processes; reported by Norman Gray.

2005-06-29  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (AC_ARG_VAR): Move next to _AC_ARG_PRECIOUS.

	* lib/autoconf/general.m4 (AC_SUBST_TRACE): New macro, to be traced
	instead of AC_SUBST; proposed by Alexandre Duret-Lutz.
	(AC_SUBST): Call it.
	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES): Call AC_SUBST_TRACE for
	the directory specific variables; but don't call it for configure_input.

2005-06-28  Derek Price  <derek@ximbiot.com>

	* doc/autoconf.texi (Limitations of Usual Tools) <sed>: Reword recent
	addition.

2005-06-23  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: Don't worry about spaces in bindir etc.  Only srcdir and working
	directory have inherent problems with special characters like spaces,
	due to limitations in Make syntax.  Problem reported by Alexandre
	Duret-Lutz.
	* lib/autoconf/general.m4 (_AC_INIT_DIRCHECK): Implement the above.
	Also, fix Tru64 porting problem with shell patterns,
	reported by Ralf Wildenhues.

2005-06-23  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Subdirectories): Fix markup typos.

2005-06-23  Paul Eggert  <eggert@cs.ucla.edu>

	* tests/local.at (AT_CHECK_ENV): Simplify regexp slightly.

	Fix some more shell quoting problems.  Prompted by a bug report
	from Justace Clutter.
	* lib/autoconf/general.m4 (_AC_INIT_DIRCHECK): Put name of invalid
	variable into diagnostic.  Make the diagnostic an error, not a warning,
	because we really don't support spaces and suchlike in dir names.
	(_AC_INIT_SRCDIR): Allow special characters in $ac_unique_file.
	Don't worry about backslashes in srcdir; it can't happen now.
	(_AC_INIT_PARSE_ARGS): Allow weird characters in ac_optarg.
	Simplify ac_optarg handling.
	(_AC_ARG_VAR_VALIDATE): Remove unnecessary and inconsistent quotes.

2005-06-22  Stepan Kasal  <kasal@ucw.cz>

	Fix AT_CONFIG_CMP for Solaris hosts; idea from Ralf Menzel.
	* configure.ac: Call AC_PROG_EGREP and AC_PROG_SED.
	* tests/atlocal.in: Propagate $EGREP and $SED.
	* tests/local.at (AT_CHECK_ENV): Use $EGREP, not $GREP -E.
	(AT_CONFIG_CMP): Use sed instead of grep plumbing.

	* doc/autoconf.texi (Limitations of Usual Tools) <grep>: Mention
	that '\|' is not allowed in BREs; recommend using newline separated
	list of patterns instead of multiple -e options.

	* lib/autoconf/fortran.m4 (_AC_PROG_FC_V_OUTPUT): Remove an old comment.

	* lib/autoconf/general.m4 (_AC_CANONICAL_SPLIT): Use AC_SUBST/2.

2005-06-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/general.m4 (_AC_CANONICAL_SPLIT): Fix typo.

2005-06-21  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Limitations of Usual Tools) <sed>: Document that
	b, t, r, w commands require single space, while : cannot have any.
	(Special Shell Variables): Fix sed code this in the example.
	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADERS): Likewise; and fix a typo.
	* lib/autotest/general.m4 (AT_ARG_OPTION): Fix typo in the description.

	* lib/m4sugar/m4sugar.m4 (m4_split): If the parameter is empty,
	expand to the empty list.  Don't use two pairs of m4_changequote,
	it's not necessary.

2005-06-20  Derek Price  <derek@ximbiot.com>

	* lib/m4/programs.m4 (AC_PROG_YACC): Declare YACC & YFLAGS precious.

2005-06-17  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (as_awk_strverscmp): Port to Solaris /bin/awk.
	* doc/autoconf.texi:
	Don't mention Solaris versions so much, if a
	problem is common to all extant versions of Solaris.  Say "SunOS
	4" instead of "SunOS" for SunOS 4.
	(awk): Mention more of the limitations of traditional Awk.
	(cat): Don't talk about cat -v.

2005-06-16  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (_AS_VERSION_COMPARE_PREPARE): New macro.
	(AS_VERSION_COMPARE): New macro.  The API is taken from CVS,
	but the implementation is entirely different and is designed
	to be compatible with glibc strverscmp.
	* tests/m4sh.at (AS_VERSION_COMPARE): New test.

	* doc/autoconf.texi (Limitations of Usual Tools): Mention expr bug
	on Mac OS X 10.4 reported by Peter O'Gorman in:
	http://lists.gnu.org/archive/html/autoconf-patches/2005-06/msg00041.html
	* lib/autoconf/general.m4 (_AC_CANONICAL_SPLIT):
	Use shell builtins rather than 'expr', to work around expr bug.

2005-06-10  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: "filesystem" -> "file system".
	"behaviour" -> "behavior".
	Warn about \(...\)* in Solaris sed (written by Ralf Menzel).
	* lib/autoconf/general.m4: Omit blank after ":" sed command,
	as per POSIX.
	* lib/m4sugar/m4sh.m4: Likewise.
	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADERS): Work around problem
	with Solaris sed.  Fix by Ralf Menzel and Stepan Kasal.

	* man/Makefile.am (MOSTLYCLEANFILES): Add $(srcdir)/*.t.
	(.x.1): Ignore the time stamp in the .TH line when deciding whether
	to update the man page.  That way, we don't have to check in new
	man pages every month.

	* lib/m4sugar/m4sh.m4 (AS_VAR_TEST_SET): Work even if $1 contains
	quotes and backslashes.  Patch from Derek Price.

2005-06-10  Derek Price  <derek@ximbiot.com>

	* doc/autoconf.texi (Programming in M4sh): Document AS_TR_CPP &
	AS_TR_SH.

2005-06-08  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autotest/general.m4 (AT_INIT): Don't accept Solaris 9's diff
	-u, since it outputs chatter if the input files are the same.
	Problem reported by Ralf Menzel.

2005-06-08  Derek Price  <derek@ximbiot.com>

	* lib/m4sugar/m4sugar.m4: Undefine include & sinclude rather than
	renaming them since they are about to be redefined anyhow.

2005-06-08  Derek Price  <derek@ximbiot.com>

	* doc/autoconf.texi (Redefined M4 Macros): Add index entries for most
	redefined M4 macros to this node.  Document m4_include & m4_sinclude.
	Move m4_undefine to alphabetical order.

2005-06-07  Paul Eggert  <eggert@cs.ucla.edu>

	* README: Recommend GNU M4 1.4.3 or later.
	* doc/autoconf.texi (Introduction): Likewise.
	Reword to avoid some formatting glitches.
	Use "#!/bin/sh", not "#! /bin/sh"; the space isn't needed these days.
	Clarify explanation of HP compiler bug.
	Redo example output tp match current CVS snapshot.
	Use @example.org in email addresses when the examples
	might get inadvertently cut-and-pasted into user code.
	Remove example of autom4te usage that doesn't seem to work now.
	Use modern AC_INIT (except when the example is meant to be
	shown with Autoconf 2.13).
	Update ksh info for Solaris 9 and later.
	KB -> kB.
	Modernize description of Automake versions a bit.
	Don't claim a future version of Autoconf is near.
	* doc/install.texi: Reword to avoid some formatting glitches.

2005-06-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi: Add [] to examples, so that the manual
	follows its own advice about quoting better.
	Reword to avoid some formatting glitches.
	* doc/installt.exi: Reword to avoid some formatting glitches.

	* doc/autoconf.texi (Limitations of Builtins) <case>: Mention
	Tru64 ksh pattern matching bug.  Reported against Libtool by
	Albert Chin <libtool@mlists.thewrittenword.com> and
	Nicolas Joly <njoly@pasteur.fr>.

2005-06-06  Stepan Kasal  <kasal@ucw.cz>

	m4_cdr of one-member list was [[]] (one-member list containing an
	empty string) instead of [] (an empty list.  Callers were skewed to
	match this misbehaviour.  As a consequence of this:
	 - m4_foreach([x], [], [foo]) expanded to `foo', while
	 - the expansion of m4_foreach([x], [[]], [foo]) was empty.
	This bug has been fixed:

	* lib/m4sugar/m4sugar.m4 (m4_cdr): If only one argument is given,
	  expand to an empty string; print error msg if called without
	  an argument list.
	(m4_foreach, m4_map, m4_map_sep): Don't expect the previous
	  misbehaviour; handle [] and [[]] correctly.

2005-06-06  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (_AC_INIT_DEFAULTS): Nuke ac_max_here_lines.
	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADERS): Simplify the sed
	  scripts created and the loop applying them, use _AC_SED_CMD_LIMIT.

2005-06-06  Ralf Menzel	<menzel@ls6.cs.uni-dortmund.de>  (trivial change)

	* doc/autoconf.texi (Limitations of Usual Tools): Solaris' awk cannot
	  swallow records with more than 99 fields.
	* lib/autotest/general.m4 (AT_INIT): Use the awk builtin `split' to
	  parse the long line.

2005-06-04  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Limitations of Usual Tools): AIX awk cannot
	  swallow literals longer than 399.  Reported by Ralf Wildenhues.
	* lib/autotest/general.m4 (AT_INIT): Pass $at_groups though stdin,
	  to workaround this limitation.

2005-06-03  Steven G. Johnson  <stevenj@alum.mit.edu>

	* lib/autoconf/fortran.m4 (_AC_PROG_FC): Find g95 in addition
	to gfortran, and make these the first two compiler names
	checked (following the general autoconf preference for gcc).

2005-06-03  Stepan Kasal  <kasal@ucw.cz>

	* tests/Makefile.am (check_SCRIPTS): Set to $(wrappers).
	(DISTCLEANFILES): Remove $(check_SCRIPTS).
	(testsuite): Make sure autotest.m4f is up-to-date before using it.

2005-06-02  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autotest/general.m4 (AT_INIT): Don't create a regular
	expression of unbounded size when processing the --list
	option.  This runs afoul of a limit of 399 bytes per regular
	expression on AIX.  Problem reported by Ralf Wildenhues.

2005-06-01  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: Note yesterday's changes to AC_SUBST and AC_SUBST_FILE.
	* doc/autoconf.texi (Particular Headers): Reword example
	for multiline stdbool replacement.
	(Setting Output Variables): Reword text a bit.  Don't
	give all the details about |#_!!_#|.
	Reword description of line replacement.

2005-05-31  Dan Manthey  <dan_manthey@partech.com>

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES): Output variables may
	now contain newlines, and substituted files must be referenced on
	a line alone; the sed scripts to substitute them are now very
	different.
	(_AC_SED_CMD_LIMIT): Added; single place to store limit on how many
	commands can be put in a sed script portably.
	* doc/autoconf.texi (Setting Output Variables): Document above
	changes.  (Particular Header Checks) <AC_HEADER_STDBOOL>: Give exaple
	use of multiline substitution.
	* tests/torture.at: No longer expect substitution of newline to fail.

2005-05-27  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (_AS_SHELL_FN_WORK): Fix diagnostics.
	From Ralf Menzel (trivial change).

2005-05-25  Paul Eggert  <eggert@cs.ucla.edu>

	* tests/local.at: Don't attempt to check for negated character
	classes in shell scripts.  The test was too brittle.

2005-05-25  Stepan Kasal  <kasal@ucw.cz>

	* bin/autoconf.as: Don't use "shift 2"; it's not portable enough.
	* doc/autoconf.texi (Limitations of Builtins): Document this
	  limitation.

2005-05-24  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sh.m4 (_AS_ECHO_LOG): New macro to factor out
	  common code; used in many places in the tree.
	(AS_ESCAPE): Make the pattern a bit simpler; use \& insetad of \1.
	(_AS_ECHO_UNQUOTED): Move the macro lower; no code change.

	* lib/m4sugar/m4sugar.m4 (m4_ifset): Use m4_ifval.

	* lib/autoconf/general.m4 (_AC_INIT_SRCDIR): Merge the two error
	  messages when ac_unique_file is not found.
	(AC_CONFIG_MACRO_DIR): Simplify the `if' at the end.
	(AC_MSG_CHECKING, AC_MSG_RESULT): Put braces around the two echo
	  commands, for consistency with AC_MSG_ERROR and such.

	* bin/autoconf.as: Make more use of "shift 2" in option processing.

	* bin/Makefile.am: Merge the two rules for creating scripts.

2005-05-23  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (AC_MSG_RESULT_UNQUOTED): Make
	obsolete; it was never documented.
	(AC_CACHE_CHECK): Use AC_MSG_RESULT instead.

2005-05-20  Stepan Kasal  <kasal@ucw.cz>

	* NEWS: @top_builddir@ is now a dirname, ac_top_builddir will follow.
	* lib/autoconf/status.m4 (_AC_SRCDIRS): Rename ...
	(ac_top_builddir): ... this ...
	(ac_top_build_prefix): ... to this; the old name is also kept, for
	  backward compatibility.
	(ac_top_builddir_sub): New variable, without the trailing slash,
	  always nonempty.
	(_AC_OUTPUT_FILES): s/@top_builddir@/$ac_top_builddir_sub/
	* doc/autoconf.texi (Configuration Actions): Rename
	  ac_top_builddir to ac_top_build_prefix.
	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): Rename
	  at_top_builddir to at_top_build_prefix.
	* lib/autotest/general.m4 (AT_INIT): Likewise.

2005-05-20  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Simplify the init
	  of confdefs.h .

2005-05-17  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sugar.m4 (m4_text_wrap): Don't m4_quote the second
	  argument to m4_foreach.  I guess it was necessary in the past,
	  but I think it's a no-op now.

2005-05-17  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (_AC_INIT_HELP): Merge two consecutive
	  ``cat <<_ACEOF'' commands to one.
	(_AC_CANONICAL_SPLIT): Use expr, not ``echo|sed.''
	* lib/autoconf/status.m4: On various places, use expr instead of
	  ``echo|sed.''
	(_AC_CONFIG_SPLIT, _AC_CONFIG_SPLIT_SOURCE_DEST):
	(_AC_CONFIG_SPLIT_FILE_IN): New macros, to factor out common code.
	* lib/autotest/general.m4 (AT_INIT): Use expr to get the numbers from
	  a range.
	* tests/local.at (AT_CHECK_SHELL_SYNTAX): Use awk to search for
	  the wrong patterns between ``case'' and ``esac.''  The previous
	  code had false positives.

2005-05-14  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autoconf/functions.m4 (_AC_LIBOBJ_ALLOCA): Prepend ${LIBOBJDIR},
	as on 2005-05-02.
	* doc/autoconf.texi (Particular Functions) <AC_FUNC_ALLOCA>:
	Mention LIBOBJDIR.

2005-05-13  Paul Eggert  <eggert@cs.ucla.edu>

	* AUTHORS, BUGS, COPYING, ChangeLog, ChangeLog.0, ChangeLog.1,
	ChangeLog.2, GNUmakefile, HACKING, Makefile.am, Makefile.cfg,
	Makefile.maint, NEWS, README, README-alpha, TODO, configure.ac,
	bin/Makefile.am, bin/autoconf.as, bin/autoheader.in,
	bin/autom4te.in, bin/autoreconf.in, bin/autoscan.in,
	bin/autoupdate.in, bin/ifnames.in, config/Makefile.am,
	config/config.guess, config/config.sub, config/elisp-comp,
	config/m4.m4, config/mdate-sh, config/missing, config/texinfo.tex,
	doc/Makefile.am, doc/fdl.texi, lib/Makefile.am, lib/autom4te.in,
	lib/freeze.mk, lib/Autom4te/C4che.pm, lib/Autom4te/ChannelDefs.pm,
	lib/Autom4te/Channels.pm, lib/Autom4te/Configure_ac.pm,
	lib/Autom4te/FileUtils.pm, lib/Autom4te/General.pm,
	lib/Autom4te/Request.pm, lib/Autom4te/Struct.pm,
	lib/Autom4te/XFile.pm, lib/autoconf/Makefile.am,
	lib/autoconf/autoconf.m4, lib/autoconf/autoheader.m4,
	lib/autoconf/autoscan.m4, lib/autoconf/autotest.m4,
	lib/autoconf/autoupdate.m4, lib/autoconf/c.m4,
	lib/autoconf/fortran.m4, lib/autoconf/functions.m4,
	lib/autoconf/general.m4, lib/autoconf/headers.m4,
	lib/autoconf/lang.m4, lib/autoconf/libs.m4,
	lib/autoconf/oldnames.m4, lib/autoconf/programs.m4,
	lib/autoconf/specific.m4, lib/autoconf/status.m4,
	lib/autoconf/types.m4, lib/autoscan/Makefile.am,
	lib/autoscan/autoscan.list, lib/autoscan/autoscan.pre,
	lib/autotest/Makefile.am, lib/autotest/autotest.m4,
	lib/autotest/general.m4, lib/emacs/Makefile.am,
	lib/emacs/autoconf-mode.el, lib/emacs/autotest-mode.el,
	lib/m4sugar/Makefile.am, lib/m4sugar/m4sh.m4,
	lib/m4sugar/m4sugar.m4, man/Makefile.am, tests/Makefile.am,
	tests/atlocal.in, tests/autotest.at, tests/base.at, tests/c.at,
	tests/compile.at, tests/foreign.at, tests/fortran.at,
	tests/local.at, tests/m4sh.at, tests/m4sugar.at, tests/mktests.sh,
	tests/semantics.at, tests/suite.at, tests/tools.at,
	tests/torture.at, tests/wrapper.as:
	Update FSF postal mail address.

2005-05-13  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (AC_CONFIG_LIBOBJ_DIR): Remove the broken
	  check.
	* lib/m4sugar/m4sugar.m4 (m4_bmatch): Halt with error if we don't get
	  enough arguments, similarly as in m4_bpatsubsts.

2005-05-12  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/status.m4 (_AC_SRCDIRS): Simplify the computation
	  of absolute paths.

2005-05-11  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (_AC_INIT_PARSE_ARGS): Make the check
	  for absolute directory names in one loop.
	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Handle
	  abbreviations of --version and --debug.

2005-05-10  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Autoconf Language): Be more precise about
	quoting rules.  Problems noted by Stepan Kasal.
	Also, throughout this document, be more careful about white space.
	"blank", "white space", and "space" all have different meanings
	and we should be careful to say what we mean.

2005-05-05  Paul Eggert  <eggert@cs.ucla.edu>

	Fix C++ related problems reported by Werner Lemberg.
	* doc/autoconf.texi (C++ Compiler): Mention .cpp extension.
	* lib/autoconf/c.m4 (AC_LANG(C++)): Set ac_ext to .cpp, not .cc.
	* lib/autoconf/types.m4 (AC_TYPE_SIGNAL): Simplify test, to
	avoid problems with C++ and throw.
	* tests/compile.at: .cpp, not .cc.

	* tests/semantics.at: Prepend LIBOBJDIR, as per 2005-05-02 change.

2005-05-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Generic Functions): Typos.

2005-05-02  Gary V. Vaughan  <gary@gnu.org>

	* lib/autoconf/general.m4 (_AC_LIBOBJS_NORMALIZE): Prepend each
	object named in LIBOBJS and LTLIBOBJS with the ${LIBOBJDIR}, as
	set by latest automake.

2005-05-01  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Usual Tools): "expr '' \| ''"
	outputs 0 on GNU/Linux these days.

2005-04-29  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Autoconf Language): Add more description
	about quoting heuristics.
	(Limitations of Builtins): Describe "set -" problems.

2005-04-29  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autotest/general.m4 (AT_KEYWORDS): Separate by space,
	not newline.

	* doc/autoconf.texi (External Software): Replace AC_DEFINE_UNQUOTED
	by AC_DEFINE; it was a mistake.
	From bug reported against libtool by Dalibor Topic <robilad@kaffe.org>.

2005-04-25  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADERS): A tiny optimization.

2005-04-22  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (External Software): Quadrigraphs are not
	  processed correctly in AS_HELP_STRING; avoid this in the examples.
	* lib/m4sugar/m4sh.m4 (AS_HELP_STRING): Add a FIXME about quadrigraphs.
	* lib/m4sugar/m4sugar.m4 (m4_text_wrap): Likewise; and rephrase the
	  comment and reduce m4_default([foo], []) to [foo].
	(m4_strip): Update the explanation.

2005-04-19  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE, _AC_RUN_IFELSE):
	Remove core.conftest.* too; it's generated by Tru64 5.1.
	Problem reported by Jennis Pruett.
	* lib/autoconf/functions.m4
	(AC_FUNC_SETVBUF_REVERSED, AC_FUNC_UTIME_NULL):
	Don't bother to remove core files; AC_RUN_IFELSE should do that
	for you.

2005-04-19  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sugar.m4 (m4_bpatsubsts): Add the b- to comment, too.

2005-04-19  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autoconf/general.m4 (_AC_INIT_PARSE_ARGS): Handle --docdir.
	Report from Horst Wente.

2005-04-15  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (_AC_ARG_VAR_VALIDATE): Fixed a typo in
	  the comment.

2005-04-14  Gregorio Guidi  <greg_g@gentoo.org>

	* doc/autoconf.texi (External Software, Package Options): Add
	  examples showing how to implement --with-* and --enable-* options.

2005-04-13  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/status.m4 (_AC_OUTPUT_SUBDIRS): Look for configure.ac
	as well as configure.in.  Problem reported by Gregorio Guidi.

2005-04-10  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Particular Functions): Use gnulib's current
	pattern for alloca snippet.

2005-04-04  Stepan Kasal  <kasal@ucw.cz>

	* lib/autotest/general.m4 (_AT_DECIDE_TRACEABLE): Fix a typo.

2005-04-01  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Generic Programs): Fix a typo.

2005-04-01  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autotest/general.m4 (AT_INIT): Don't assume that "date +%s"
	fails if %s isn't supported.  Problem reported by Ralf Wildenhues.

2005-03-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/fortran.m4 (_AC_FC_LIBRARY_LDFLAGS):
	Merge `-z option' as well for the benefit of Solaris link flags.  Pass
	whole-archive (-zallextract, -zdefaultextract) options in the hope of
	unique libraries, for the Sun Fortran 95 8.0 compiler.  Bug reported
	against Libtool by Yury Puhalsky <pooh@cryptopro.ru>.

2005-03-22  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: The configure command now warns you if you attempt to use
	a directory whose name contains a special character like space,
	newline, or "\".
	* doc/autoconf.texi (Installation Directory Variables): Allow
	"," in file names.  Do not use \@; it's not a portable regexp.
	* bin/Makefile.am (edit): Likewise.
	* lib/Makefile.am (edit): Likewise.
	* tests/Makefile.am (edit): Likewise.
	* tests/semantics.at: Likewise.
	* tests/torture.at: Likewise.
	* lib/autoconf/general.m4 (AC_ARG_PROGRAM): Likewise.
	* lib/autoconf/status.m4 (_AC_SRCDIRS): Likewise.
	* doc/autoconf.texi (File System Conventions): Warn about
	unportable file names.
	* lib/autoconf/general.m4 (_AC_INIT_DIRCHECK): New macro.
	(AC_INIT): Use it.
	(_AC_INIT_SRCDIR): Use ac_pwd rather than invoking pwd.
	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Propagate
	ac_pwd, and quote srcdir.
	* lib/autotest/general.m4 (AT_INIT): Quote file name args.

	* doc/autoconf.texi: Fix some systematic formatting problems.
	".)"  needs a following @: if not at the end of a sentence, and
	similarly for "!)".  "etc." should be preceded by a comma.
	"n-th" -> "@var{n}th".  pdksh is still buggy, so update its date.

2005-03-22  Bruno Haible  <bruno@clisp.org>

	* doc/autoconf.texi (Input): Mention that AC_CONFIG_AUX_DIR's
	argument is often called 'build-aux'.

2005-03-07  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Quotation Rule Of Thumb): Mention that the
	  macro AC_TRY_LINK is obsolete.
	(Installation Directory Variables): Change `AC_OUTPUT_FILES' to
	  `AC_CONFIG_FILES'.

2005-02-24  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/c.m4 (AC_PROG_CC): Be more careful to skip
	  `/usr/ucb/cc'; use `cl.exe' to distinguish the MS compiler
	  from a Common Lisp's `cl'.
	(AC_PROG_CXX): Behave according to the documentation: don't
	  search for $ac_tool_prefix$CCC and $CCC, just set CXX=$CCC;
	  make the variable CCC precious; use `cl.exe', not `cl'.

2005-02-23  Paul Eggert  <eggert@cs.ucla.edu>
	    Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autoconf/general.m4 (_AC_INIT_DEFAULTS): Redirect stdin from
	/dev/null, as "configure" shouldn't read stdin, and this insulates
	us from problems (e.g., when testing for "cl").  Also, do this
	redirection before invoking "hostname" or "uname", and keep the
	original input stream available via...
	(AS_ORIGINAL_STDIN_FD): ... this new macro.
	(_AC_PREPROC_IFELSE, _AC_COMPILE_IFELSE, _AC_LINK_IFELSE): Don't
	bother with "</dev/null" since it's now done at the top of
	'configure'.
	* lib/autoconf/c.m4 (AC_PROG_CC, AC_PROG_CXX): Likewise.
	* lib/autoconf/fortran.m4 (_AC_PROG_FC): Likewise.
	* lib/autoconf/programs.m4 (_AC_PATH_PROG_FLAVOR_GNU): Likewise.
	* doc/autoconf.texi (File Descriptor Macros): New section.
	(Printing Messages): Mention it.
	* tests/base.at (Input/Output): New test.

2005-02-23  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (_AS_ECHO_N_PREPARE): Don't set ECHO_C to
	newline if neither \c nor -n work, as that would output two
	newlines.  Prefer -n to \c.  Reported by Stepan Kasal.

2005-02-12  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sh.m4 (AS_IF): Define by m4_defun, not m4_define.
	This causes that any required macros inside will get before the if.
	* doc/autoconf.texi (autom4te.cache): A typo.

2005-02-12  Paul Eggert  <eggert@cs.ucla.edu>

	Undo previous change, except keep the change to
	lib/autoconf/programs.m4 that replaced grep with shell
	pattern-matching.  This is because net-snmp configure reads stdin.
	Reported by Noah Misch.

2005-02-11  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (_AC_INIT_DEFAULTS): Redirect stdin
	from /dev/null, as "configure" shouldn't read stdin, and this
	insulates us from problems (e.g., when testing for "cl").
	Suggested by Alexandre Duret-Lutz.  Also, do this redirection
	before invoking "hostname" or "uname".
	(_AC_PREPROC_IFELSE, _AC_COMPILE_IFELSE,
	_AC_LINK_IFELSE): Undo previous change, as it's no longer needed.
	* lib/autoconf/c.m4 (AC_PROG_CC, AC_PROG_CXX): Don't bother with
	"</dev/null" since it's now done at the top of 'configure'.
	* lib/autoconf/fortran.m4 (_AC_PROG_FC): Likewise.
	* lib/autoconf/programs.m4 (_AC_PATH_PROG_FLAVOR_GNU): Likewise.
	Also, replace grep with shell pattern-matching, to save a process.

2005-02-10  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (_AC_PREPROC_IFELSE, _AC_COMPILE_IFELSE,
	_AC_LINK_IFELSE): Redirect stdin to /dev/null, in an attempt to
	avoid thinking that Allegro Common Lisp's "cl" command is a C++
	compiler.

2005-02-09  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Usual Tools): Document that
	grep -q isn't portable.  Improve grep -s explanation.
	Problem reported by Dan Manthey.

2005-02-08  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Special Shell Variables): Clarify
	PATH_SEPARATOR wording; fix typo in IFS.  Reported by Gary V. Vaughan.

2005-02-07  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: Use @acronym for DJGPP.
	Fix some @code's that should have been @env's, and vice versa.
	Sort environment variable names.
	Mention that shells no longer inherit IFS.
	Don't recommend PATH_SEPARATOR=';' so strongly.
	Mention that $RANDOM might expand to the empty string.
	"symlink" and "soft link" -> "symbolic link".
	Improve mktemp description (reported by Bruno Haible).

2005-02-05  Paul Eggert  <eggert@cs.ucla.edu>

	* tests/foreign.at (Libtool): Don't overquote AT_SETUP arg.
	* tests/m4sh.at (AS_DIRNAME, AS_BASENAME, AS_MKDIR_P, AS_HELP_STRING):
	Likewise.
	* tests/semantics.at (AC_C_BIGENDIAN, AC_PATH_PROG & AC_PATH_PROGS):
	Likewise.

2005-02-04  Paul Eggert  <eggert@cs.ucla.edu>

	* NEWS: Mention AT_COPYRIGHT.

	* tests/local.at (AT_CMP): Use diff directly on input files rather
	than copying them.

	* lib/autoconf/programs.m4 (AC_PROG_SED): Don't look in
	/usr/xpg4/bin since that sed dumps core (at least on Solaris 8).

2005-02-04  Noah Misch  <noah@cs.caltech.edu>
	and Paul Eggert  <eggert@cs.ucla.edu>

	* tests/autotest.at (Empty test suite): New test.
	* tests/torture.at (Substitute and define special characters)
	(Substitute a 2000-byte string, Define to a 2000-byte string)
	(Substitute a newline, Define a newline): New tests.

2005-02-04  Noah Misch  <noah@cs.caltech.edu>

	* lib/m4sugar/m4sugar.m4 (m4_re_string, m4_re_word): Revert 2002-03-04.
	* tests/local.at (AT_CHECK_M4SUGAR): Add `m4sugar' to keywords.
	(AT_CHECK_ENV): Ignore LTLIBOBJS, FC variables, EGREP, FGREP, and SED.
	* tests/m4sugar.at (AT_CHECK_M4SUGAR_TEXT, AT_CHECK_M4RE): New macros.
	(Standard regular expressions): New test.
	(m4_warn, m4_require: circular dependencies, m4_text_wrap): Strip
	excess test name quoting.
	* tests/semantics.at (AC_CHECK_HEADERS_OLD, AC_CHECK_HEADERS_NEW): Pass
	CPPFLAGS to `configure' instead of setting it in `configure'.

	* lib/m4sugar/m4sh.m4 (AS_UNAME): Try only /usr/bin/hostinfo, not
	any `hostinfo' in $PATH, since hostinfo.exe is a popular file name
	on some platforms.

	* lib/autoconf/fortran.m4 (AC_LANG(Fortran), AC_FC_SRCEXT):
	s/FC_SRCEXT/ac_fc_srcext/; s/FCFLAGS_SRCEXT/ac_fcflags_srcext/.

	* tests/local.at (AT_CMP): New macro.
	(AT_DATA_AUTOCONF): Do not call AC_PROG_GREP.
	(AC_SAVE_STATE): Move environment grep...
	(AT_CHECK_ENV): to here.  Filter out `'$''.  Use AT_CMP.
	(AT_CONFIG_CMP): New macro.
	(AT_CHECK_MACRO): Run `configure' twice with cache and compare results.
	* tests/c.at (Extensions): Do not exit early.
	* tests/atlocal.in: Inherit $GREP.

	* lib/autoconf/c.m4 (_AC_C_STD_TRY): New macro.
	(_AC_PROG_CC_C89, _AC_PROG_CC_C99): Use it.

	* lib/autoconf/general.m4 (_AC_INIT_COPYRIGHT): Update for 2005.
	(AC_COPYRIGHT): Factor header comment portion out and move into...
	* lib/m4sugar/m4sh.m4 (AS_COPYRIGHT): This.
	* lib/autotest/general.at (AT_COPYRIGHT): New macro.
	(AT_INIT): Add Autotest copyright notice.  Display copyright notices in
	--version output.
	* tests/local.at: Add Autoconf test suite copyright notice.
	* doc/autoconf.texi (Writing testsuite.at): Document AT_COPYRIGHT.

2005-02-04  Bruno Haible  <bruno@clisp.org>
	and Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Usual Tools): New mkstemp entry.

2005-02-03  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sugar.m4 (m4_re_escape): Escape ?, ^, \, $ too;
	this fixes a bug tickled by the AT_CAPTURE_FILE change noted below.

	Try not to generated lines of unlimited length, as POSIX places a
	2047-byte limit on line length of portable text files.
	* lib/autoconf/general.m4 (AC_SUBST, AC_SUBST_FILE):
	Use newline as a separator, not space.
	* lib/autotest/general.m4 (AT_TESTED, AT_KEYWORDS): Likewise.
	(AT_CAPTURE_FILE): Use space-backslash-newline as a separator, not
	space.

2005-02-03  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/m4sugar/m4sh.m4 (_AS_SHELL_FN_WORK): Move func_* to
	as_func_*.  Add test to check whether positional parameters
	are restored after function return.

2005-02-02  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Special Shell Variables): Mention _,
	BIN_SH, DUALCASE.  Say that variables other than "status" are safe
	if they contain a lower-case letter.  The DUALCASE problem was
	reported by Ralf Wildenhues.

	* bin/autoconf.as: Don't exit with status 0 after write failure
	with --help or --version.
	* lib/autoconf/general.m4 (_AC_INIT_HELP, _AC_INIT_VERSION): Likewise.
	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Likewise.

2005-02-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Limitations of Usual Tools):
	Unicos 9 sed limitations.
	* lib/autoconf/fortran.m4 (_AC_PROG_FC): Try cf77 before fort77
	to get the option-enhanced interface on older Crays.  Try ftn for
	Fortran 95 (newer Crays).

2005-02-01  Paul Eggert  <eggert@cs.ucla.edu>

	* man/Makefile.am (.x.1): Go back to the simple solution, but take
	care to echo the commands, so the user knows what's going on.
	Modified from a suggestion by Stepan Kasal.

	* doc/autoconf.texi (autoreconf Invocation): Mention autopoint,
	with a cross reference.  Derived from a suggestion by Bruce Korb.

2005-01-31  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (config.status Invocation): Warn about
	discrepancy between CONFIG_SHELL and shell used to invoke 'configure'.
	* doc/install.texi (Defining Variables): Likewise.
	Based on a proposed patch by Ralf Wildenhues.

	* man/Makefile.am (.x.1): Make sure the required generated files
	are up to date.  Problem and original solution proposed by Stepan Kasal.
	$(dist_man_MANS:.1=-bin-prereq), $(dist_man_MANS:.1=-tests-prereq),
	implicit-man-prerequisites): New rules, used by the above.

	* doc/make-stds.texi, doc/standards.texi: Sync from gnulib.
	* config/config.guess, config/config.sub, config/install-sh: Likewise.
	* config/missing, config/texinfo.tex: Likewise.

2005-01-29  Stepan Kasal  <kasal@ucw.cz>

	Simplify the implementation of m4_require (a.k.a. AC_REQUIRE).
	Update the long comment explaining it.

	m4_require no longer writes an ``is required by'' line to the
	execution stack.  It contains only one bit of non-redundant
	information: that the macro was required, not called.  And even
	this bit is useless in most situations: have you ever met a macro
	which both calls and requires the same macro?

	* lib/m4sugar/m4sugar.m4 (_m4_defun_pro): Don't push a diversion...
	(_m4_defun_pro_outer): ... only via this macro, for the outermost
	  macro.
	(_m4_defun_epi, _m4_defun_epi_outer): Complementarily.
	(m4_expansion_stack_pop): Remove the misplaced comment.
	(m4_require): Don't put the ``is required by'' line to the
	  execution stack; slightly improve the out-of-a-defun error message.
	(_m4_divert_grow): New macro, counter for the temporary diversions.
	(_m4_require_call): Use it.
	* tests/m4sugar.at (m4_require): Expect output without the
	  ``is required by'' messages.

2005-01-28  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Usual Tools): Recommend X
	rather than x for expr.

	* lib/autoconf/lang.m4 (_AC_COMPILER_OBJEXT): Avoid subshells when
	this is safe.
	* lib/autoconf/programs.m4 (AC_PROG_EGREP, AC_PROG_FGREP): Likewise.
	* lib/autoconf/specific.m4 (AC_SYS_LONG_FILE_NAMES): Likewise.
	* lib/autotest/general.m4 (AT_INIT): Likewise.
	* lib/m4sugar/m4sh.m4 (_AS_LINENO_WORKS): Likewise.
	* tests/mktests.sh: Likewise.

2005-01-27  Akim Demaille  <akim@epita.fr>

	Have autoheader honor --force.

	* doc/make-stds.texi, doc/standards.texi: Update from masters.
	* lib/Autom4te/Channels.pm, lib/Autom4te/Configure_ac.pm
	* lib/Autom4te/FileUtils.pm, lib/Autom4te/XFile.pm: Update
	from masters, so that FileUtils.pm's update_file provide --force
	support.
	* bin/autoheader.in: Pass $force to update_file so that
	config.h.in is always recreated when --force.

2005-01-24  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Introduction): Update Peter Simons' address.

2005-01-21  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Builtins): Clarify that
	"if test ! -d foo; ..." is portable.  Suggested by Stepan Kasal.

2005-01-20  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Shell Substitutions): Fix typo in case statement.
	Warn about newline stripping in `` and $().  Update Solaris
	version to 9.
	(Limitations of Builtins): Use expr "X...", not expr "x...", as
	X insulates us from future changes to Posix.
	(Limitations of Usual Tools): For AS_DIRNAME, warn about newline
	stripping.

2005-01-19  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Defining Symbols): Delete the false comment that
	  you cannot use AC_DEFINE to define macros containing `[' or `]'.

2005-01-13  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Usual Tools): Document bug
	in Solaris 8 join.  Problem reported by Tomohiro Suzuki on
	bug-tar mailing list.

2005-01-05  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sugar.m4 (m4_copy): Fix the explanation.

2005-01-05  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/c.m4 (AC_LANG_INT_SAVE(C)): Declare longval and
	ulongval to be static, to avoid unwanted GCC warning.  Problem
	reported by Michael Jennings via Daniel Reed; see
	<https://bugzilla.redhat.com/beta/show_bug.cgi?id=143852>.

2005-01-05  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autoconf/general.m4 (_AC_INIT_PARSE_ARGS): Define datarootdir,
	docdir, htmldir, dvidir, pdfdir, psdir, and localdir.  Update
	datadir, infodir, and mandir.  Adjust argument parsing code.
	(_AC_INIT_HELP): Update help text.
	* doc/autoconf.texi (Installation Directory Variables): Document
	new variables.

2005-01-04  Noah Misch  <noah@cs.caltech.edu>

	* lib/autoconf/programs.m4 (AC_PROG_MAKE_SET): If the Make program does
	not seem to work, assume it does set $(MAKE).
	* doc/autoconf.texi (AC_PROG_MAKE_SET): Update.

2005-01-03  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sh.m4 (AS_REQUIRE): Add a comment about nesting.

2005-01-03  Stepan Kasal  <kasal@ucw.cz>

	A cleanup of the diversion support in m4sugar.

	* lib/m4sugar/m4sugar.m4 (_m4_divert): A typo in description.
	(_m4_divert_n_stack): New macro; the expansion is
	  <newline>m4_divert_stack, if m4_divert_stack is defined, and void
	  otherwise.
	(m4_divert, m4_divert_push, m4_divert_pop, m4_init): Use it.
	(m4_divert_push, m4_divert_pop, _m4_defun_epi): Don't expand the word
	  stored in _m4_divert_diversion or _m4_divert_dump.
	(m4_divert_pop): When the parameter is given, compare the symbolic
	  name with the last diversion pushed on the stack.  Previously, the
	  current diversion was compared with the numeric value of the
	  diversion given as the parameter.
	(m4_require): If the macro hasn't been expanded yet, call ...
	(_m4_require_call): this new macro.

2005-01-03  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE, _AC_ARG_VAR_VALIDATE):
	Workarounds for documented `case' limitations.

2005-01-03  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Usual Tools): Warn about
	sed 'command1;command2'.  Problem reported by Ralf Wildenhues.

2005-01-02  Paul Eggert  <eggert@cs.ucla.edu>

	* bin/autoconf.as, bin/autoheader.in, bin/autom4te.in,
	bin/autoreconf.in, bin/autoscan.in, bin/autoupdate.in,
	bin/ifnames.in, tests/mktests.sh: Update copyright date to 2005.

	Patch from Roger Leigh (with some minor changes) as follows:
	* NEWS: New macros AC_PROG_CC_C89, AC_PROG_CC_C99.
	Resurrect AC_PROG_CC_STDC.
	* doc/autoconf.texi (C Compiler): Add AC_PROG_CC_STDC,
	AC_PROG_CC_C89, AC_PROG_CC_C99.
	(Obsolete Macros): Remove AC_PROG_CC_STDC; it's no longer obsolete.
	* lib/autoconf/c.m4 (_AC_PROG_CC_C89, _AC_PROG_CC_C99, AC_PROG_CC_C89,
	AC_PROG_CC_C99): New macros.
	(AC_PROG_CC_STDC): Use them.
	(_AC_PROG_CC_STDC): Remove.
	(AC_C_PROTOTYPES): Use ac_cv_prog_cc_c89, not ac_cv_prog_cc_stdc.
	* THANKS: Add Roger Leigh.

2004-12-30  Noah Misch  <noah@cs.caltech.edu>

	* bin/autoreconf.in (autoreconf_current_directory):  AM_INIT_AUTOMAKE
	signals that the package uses Automake; a `Makefile.am' is typical but
	not essential.  Reported by Magnus Therning.
	* tests/torture.at (autoreconf.): New banner.
	(autoreconf and non-AC configure): Rename to `Non-Autoconf
	AC_CONFIG_SUBDIRS'.
	(autoreconf an empty directory): Rename to `Empty directory'.
	(Unusual Automake input files): New test.

2004-12-30  Noah Misch  <noah@cs.caltech.edu>

	* lib/autotest/general.m4 (AT_CAPTURE_FILE): New macro.
	(AT_SETUP): Clear AT_capture_files.
	(_AT_CHECK): On failure, log each of AT_capture_files.  Fix comment.
	(AT_KEYWORDS): Fix comment typo.
	* tests/autotest.at (AT_CHECK_AT): Use AT_CAPTURE_FILE.
	* tests/local.at (AT_CHECK_CONFIGURE): Use AT_CAPTURE_FILE.
	* doc/autoconf.texi (Writing testsuite.at): Document AT_CAPTURE_FILE.

2004-12-29  Albert Chin-A-Young  <china@thewrittenword.com>

	* lib/autoconf/programs.m4 (_AC_FEATURE_CHECK_LENGTH):
	If the variable to set is already set, set ac_cv_path_$1
	to the preset value so caller can assume ac_cv_path_$1
	is available.  (trivial change)

2004-12-27  Noah Misch  <noah@cs.caltech.edu>

	* BUGS (Minor Problems): Warn about makefile limitations.
	* Makefile.am: Find and update `INSTALL' in $(srcdir).
	* man/Makefile.am: Find and update manual pages in $(srcdir).

2004-12-24  Eric Blake  <ebb9@byu.net>

	* lib/m4sugar/m4sh.m4 (_AS_DETECT_BETTER_SHELL): Test candidate
	shells in subshell, to avoid noise from ash.  (trivial change)

2004-12-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/autoconf.texi (Limitations of Builtins) <case>: Mention
	problems with SunOS ksh and backslash escaping, Bourne shells and
	closing brackets (both within character classes).  Bug reported
	against Libtool by Alexander Kurz <alexander.kurz@qsc.de>.
	<read>: New entry.  Mention non-availability of -r.

2004-12-21  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_LINE): Don't add srcdir here, to
	avoid cluttering displayed messages.  Rather, prepend srcdir where
	AT_LINE is used for log files.

2004-12-21  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/status.m4: Quote ``$tmp'' in many places.
	* lib/m4sugar/m4sh.m4 (AS_TMPDIR): Fix the comment, as traps are
	  no longer part of the macro, quote the occurrence of ``$tmp''.
	* doc/autoconf.texi (Forbidden Patterns): Typo.

2004-12-21  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Make sure the "ok" etc. are
	separated from the test title by forcing a white space.

2004-12-21  Akim Demaille  <akim@epita.fr>

	Enable Emacs navigation within testsuite.log files.

	* lib/autotest/general.m4 (AT_CLEANUP): Add an hint for Emacs to
	use the compilation mode.
	(AT_LINE): Point to the srcdir.

2004-12-19  Noah Misch  <noah@cs.caltech.edu>

	* tests/Makefile.am (installcheck-local): Use $(bindir).
	(check-local, installcheck-local): Pass TESTSUITEFLAGS.
	* doc/autoconf.texi (Making testsuite Scripts): Recommend the same
	Makefile.am scheme Autoconf now uses.

2004-12-18  Noah Misch  <noah@cs.caltech.edu>

	* lib/m4sugar/m4sugar.m4 (m4_qlen, m4_qdelta): New macros.
	* lib/autotest/general.m4 (AT_SETUP): Use m4_qdelta.

2004-12-18  Noah Misch  <noah@cs.caltech.edu>

	* lib/autotest/general.m4 (_AT_DECIDE_TRACEABLE): New macro.
	(_AT_CHECK): Use it.
	* lib/m4sugar/m4sh.m4 (AS_ESCAPE_FOR_EXPAND): Remove.
	(AS_ESCAPE): Fix comment.
	* tests/autotest.at: Adjust section banner comments.
	(AT_CHECK_AT): Accept STATUS and STDERR.
	(AT_CHECK_AT_TEST): Likewise.
	(Invalid brace-enclosed parameter expansion)
	(Multiline command from M4 expansion)
	(Double-M4-quoted command): New tests.

2004-12-17  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: Update GNU FDL version from 1.1 to 1.2.

2004-12-17  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (AC_SUBST, AC_SUBST_FILES): Pass $1 to
	m4_pattern_allow.
	Suggested by Alexandre Duret-Lutz.
	* doc/autoconf.texi (Setting Output Variables): Catch up.

2004-12-17  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sh.m4 (_AS_TEST_PREPARE): Fix comment.

2004-12-17  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (_AC_LIBOBJ): We can use AC_SUBST/2,
	  remove the comment which said we cannot.

2004-12-17  Stepan Kasal  <kasal@ucw.cz>

	Add a specialized check for resolv.h.  Thanks to Gerrit P. Haase,
	Reini Urban and Paul Eggert for reporting the dependencies.

	* lib/autoconf/headers.m4 (AC_HEADER_RESOLV): New macro.
	* doc/autoconf.texi (AC_HEADER_RESOLV): Document it.
	(AC_HEADER_STAT): @cvindex{STAT_MACROS_BROKEN}, not @acindex.

2004-12-17  Stepan Kasal  <kasal@ucw.cz>

	* bin/autoscan.in: Open autoscan.log only after ``parse_args'';
	  so that eg. ``autoscan --help'' doesn't truncate it.

2004-12-15  Nicolas Joly  <njoly@pasteur.fr>

	* lib/autoconf/programs.m4 (_AC_FEATURE_CHECK_LENGTH): Remove
	generated conftest files.

2004-12-13  Noah Misch  <noah@cs.caltech.edu>

	* lib/autotest/general.m4 (_AT_CHECK) [--trace]: Do not enable shell
	tracing on commands with possibly-escaped newlines.
	* doc/autoconf.texi (Writing testsuite.at): Delete documentation of the
	discontinued behavior and its implications.
	* tests/autotest.at (BS-newline in command, ^BS-newline in command)
	(BSx641-newline in command, BS-BS-newline in command)
	(BSx640-newline in command, Newline-CODE-BS-newline in command)
	(Single-quote-BS-newline in command)
	(Single-quote-newline-BS-newline in command): New tests.

2004-12-13  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sh.m4 (AS_EXECUTABLE_P): Use test -f && test -x
	  on platforms where it works.
	(_AS_TEST_PREPARE): Test for ``test -x''.
	(_AS_BROKEN_TEST_PREPARE): Nuke.

2004-12-13  Stepan Kasal  <kasal@ucw.cz>

	* lib/m4sugar/m4sh.m4 (AS_TMPDIR): Move the trap commands ...
	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): ... here;
	  give only 4-letter prefix to AS_TMPDIR, comment fixed.
	* lib/autoconf/programs.m4 (_AC_PATH_PROG_FEATURE_CHECK): Don't
	  create the temporary directory.
	(_AC_FEATURE_CHECK_LENGTH): Work in current directory.

2004-12-12  Kelley Cook  <kcook@gcc.gnu.org>

	* bin/autoheader.in: Exit if no AC_CONFIG_HEADERS was found.
	(trivial change)

2004-12-12  Alexandre Duret-Lutz  <adl@gnu.org>

	* doc/autoconf.texi (Limitations of Usual Tools) <expr (:)>: Typo.

2004-12-11  Noah Misch  <noah@cs.caltech.edu>

	* lib/autotest/general.m4 (_AT_CHECK) [--trace]: Rework a shell pattern
	to avoid using a negated character class.  Reported by Nicolas Joly.
	* tests/local.at (AT_CHECK_SHELL_SYNTAX): Check for similar constructs.

2004-12-10  Paul Eggert  <eggert@cs.ucla.edu>

	* man/Makefile.am (autoconf.1, autoheader.1, autom4te.1, autoreconf.1,
	autoscan.1, autoupdate.1, ifnames.1, config.guess.1, config.sub.1):
	Don't depend on .x file explicitly, since "make" does that for us.
	Suggested by Stepan Kasal.

	* bin/Makefile.am (MOSTLYCLEANFILES): Renamed from CLEANFILES.
	Add *.tmp.
	(autoconf, autoheader, autom4te, autoreconf, autoscan, autoupdate,
	ifnames): Factor common code.  And they said it couldn't be done!

2004-12-09  Paul Eggert  <eggert@cs.ucla.edu>

	* bin/.cvsignore: Add autoconf.in.
	* tests/.cvsignore: Add wrapper.in.
	* lib/autotest/general.m4: Escape '$' in case pattern.

2004-12-09  Noah Misch  <noah@cs.caltech.edu>

	* man/Makefile.am (autoconf.1): Regenerate when `autoconf.as' changes.

	* lib/autotest/general.m4 [--trace] (AT_INIT): Do not `set -v'.

	* tests/autotest.at: New file.
	* tests/suite.at: Include it.
	* tests/Makefile.am: Distribute it.

	* lib/autotest/general.m4 [--trace] (_AT_CHECK): Do not enable
	  shell tracing on a command that could contain multiple lines.
	* doc/autoconf.text: Document that fact and its implications.
	* lib/m4sugar/m4sh.m4 (AS_ESCAPE_FOR_EXPAND): New macro.
	* tests/autotest.at (Multiline backquote command substitution,
	  Multiline parameter expansion, Literal multiline command,
	  Multiline parenthetical command substitution): Remove XFAIL.

2004-12-09  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Libraries): Clarify problems with AC_CHECK_LIB
	and suggest AC_SEARCH_LIBS.  Suggested by Noah Misch and Stepan Kasal.

2004-12-08  Noah Misch  <noah@cs.caltech.edu>

	* configure.ac (test suite): Cease to generate wrapper scripts.
	* configure: Regenerate.
	* lib/freeze.mk (MY_AUTOM4TE): Wrap the uninstalled autom4te directly.
	(m4f_dependencies): Adjust accordingly.
	* tests/Makefile.am (Wrappers): Generate wrapper scripts.
	(wrapper.in): Generate it in the build directory.
	(MAINTAINERCLEANFILES): Delete wrapper.in.
	(CLEANFILES): Add wrapper.in.
	* tests/wrapper.as: Move AS_INIT to very top, preserving copyright in
	the output.  Replace each $as_me with a @wrap_program@.
	* tests/wrapper.in: Delete it; we always build it.

	* bin/Makefile.am (autoconf.in): Generate it in the build directory.
	(EXTRA_DIST): Remove autoconf.in.
	(CLEANFILES): Add autoconf.in.
	(autoconf): Find autoconf.in in the build directory.
	* bin/autoconf.in: Delete it; we always build it.

2004-12-08  Noah Misch  <noah@cs.caltech.edu>

	* lib/autotest/general.m4 (AT_INIT): Replace a `tr' with a `sed'.  Join
	PATH members so as to not prepend an empty element.  Move a comment.
	* Makefile.am (SUBDIRS): Build in `tests' last.
	* tests/Makefile.am (installcheck-local): Add check-local dependencies.

2004-12-08  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/mdate-sh: Don't use "set - x`$ls_command /`", as zsh mishandles
	the spaces inside $ls_command.  Problem reported by Loulou Pouchet in
	<http://lists.gnu.org/archive/html/autoconf/2004-12/msg00074.html>.
	Don't use "set - x"; plain "set x" is enough, and simplifies debugging.

2004-12-07  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/functions.m4 (AC_FUNC_GETMNTENT): Fix typo in previous
	patch: extra "-l"s.

2004-12-06  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/functions.m4 (AC_FUNC_GETMNTENT): Check libc before
	looking elsewhere for getmntent.  Problem reported by Mark D. Baushke.
	* doc/autoconf.texi (Particular Functions): Mention new behavior.

2004-12-03  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/general.m4 (AC_DEFINE, AC_DEFINE_UNQUOTED): Factor
	  out the common code to ...
	(_AC_DEFINE_Q): ... a new macro; simplify the condition about the
	  value of the #define--default to 1, iff the macro was called
	  with exactly one parameter.

2004-12-02  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/functions.m4 (AC_FUNC_MEMCMP): Use
	"char c = '\200';" rather than "char c = 0x80;" as the
	latter doesn't conform to the strict C standard due to
	overflow on signed char hosts.

	* lib/autoconf/c.m4 (_AC_PROG_CC_STDC): Prefer -qlanglvl=extc89
	to -qlanglvl=ansi.  We don't want to disable extensions.

2004-11-29  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Particular Programs): @code{$PATH} -> @env{PATH}.
	(Using Autotest, testsuite Scripts, Writing testsuite.at):
	Reword slightly to avoid some English-language problems noted
	by Ralf Wildenhues in:
	http://lists.gnu.org/archive/html/autoconf-patches/2004-11/msg00027.html

2004-11-29  Stepan Kasal  <kasal@ucw.cz>

	* NEWS: Add ^L above each release.

2004-11-28  Paul Eggert  <eggert@cs.ucla.edu>

	Fix documentation problems reported by Russ Boylan in
	<http://lists.gnu.org/archive/html/bug-autoconf/2004-11/msg00056.html>,
	along with some nearby cruft.
	* doc/autoconf.texi (Libtool): Libtool can be used without
	Automake (not without Autoconf).
	(Introduction): Mention lists.gnu.org.
	* BUGS: Don't mention bugs.gnu.org.
	Remove mention of ancient libtool compatibility problem.
	* NEWS: Mention that bugs.gnu.org is kaput.
	* README: Likewise.  Mention where mailing list archives can be found.

2004-11-28  Stepan Kasal  <kasal@ucw.cz>

	* HACKING: Refer to "coreutils", not "File, Shell or Text utils".
	* lib/m4sugar/m4sh.m4 (AS_HELP_STRING): A typo in the comment.

2004-11-26  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Pretty Help Strings): Go back to
	single-quoting assignments to cache variables.

2004-11-23  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Pretty Help Strings): Fix quoting issues
	with the examples; fix the bug in MY_ARG_WITH example reported
	by Alexandre Duret-Lutz.
	* lib/autoconf/general.m4 (AC_ARG_ENABLE, AC_ARG_ENABLE): Enable
	expansion of $1 in the comment emitted to configure.

2004-11-23  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Pretty Help Strings): Fix typo
	in my editing of the previous patch.  Problem reported
	by Alexandre Duret-Lutz.

2004-11-22  Stepan Kasal  <kasal@ucw.cz>

	* doc/autoconf.texi (Autoconf Language): Explain that
	``descriptions'' may not be double quotes.
	(Quotation Rule Of Thumb): Likewise.
	(Pretty Help Strings): Likewise; remove the wrong comment;
	simplify the examples and improve their quoting.

2004-11-13  Stepan Kasal  <kasal@ucw.cz>

	* lib/autoconf/programs.m4 (_AC_FEATURE_CHECK_LENGTH): Don't check
	the $1_found variable, don't test whether the file is executable;
	Both things are checked ...
	(_AC_PATH_PROG_FEATURE_CHECK): ... here; AS_EXECUTABLE_P replaces
	the former ``test -f''.
	* lib/m4sugar/m4sh.m4 (_AS_TEST_PREPARE): Fix a typo.

2004-11-10  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Usual Tools): Avoid cp -r;
	use cp -R instead.

2004-11-10  Derek R. Price  <derek@ximbiot.com>

	* doc/autoconf.texi (Limitations of Usual Tools): Note `cp -r'
	limitations.  Reorder paragraphs for clarity.

2004-10-11  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: Standardize spelling of "Posix" (as opposed
	to "POSIX" or "@acronym{POSIX}"), and similarly for "DOS
	variants", "Unix", and some related minor wording fixups.

	(Shellology, Special Shell Variables): Document that the Zsh
	problem with NULLCMD was fixed in zsh 3.1.6-dev-18.  Thanks
	to Alexandre Duret-Lutz for this info.

2004-10-10  Alexandre Duret-Lutz  <adl@gnu.org>

	* doc/autoconf.texi (One-Shot Macros): New node.

2004-09-28  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Function Portability): Fix misdescription
	of putenv.  Problem reported by Michael Wardle.

2004-09-22  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (auindex): New macro.
	(AU_DEFUN): Use it to fix the bug when the index contained AC_AU_DEFUN.
	Problem reported by Stepan Kasal.

2004-09-05  Paul Eggert  <eggert@cs.ucla.edu>

	Fix problems reported by Andreas Buening in:
	http://lists.gnu.org/archive/html/autoconf-patches/2004-04/msg00004.html
	* lib/autoconf/programs.m4 (AC_PROG_MAKE_SET): Set SHELL=/bin/sh
	in test makefile.
	* lib/autotest/general.m4 (AT_INIT): Don't assume /dev/null is
	readable; it's not true in OS/2-emx.

2004-09-04  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/libs.m4 (_AC_PATH_X_XMKMF): If xmkmf returns
	"/usr/include", clear ac_x_includes instead of leaving it as "no"
	(trivial change).  Problem and patch reported by Andrew Church in:
	http://lists.gnu.org/archive/html/bug-autoconf/2004-04/msg00016.html

2004-09-03  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi: Give AC_DEFINE and AC_DEFINE_UNQUOTED
	three args in examples.  Problem reported by Frederik Fouvry in:
	http://lists.gnu.org/archive/html/bug-autoconf/2004-09/msg00017.html
	Also, fix some minor spacing and punctuation bugs.

2004-09-02  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Limitations of Builtins): Swap "cd" and
	"case" to restore ordering.
	Reported by Stepan Kasal.

2004-08-26  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: Minor typos and stylos.

2004-08-20  Paul Eggert  <eggert@cs.ucla.edu>

	* configure.ac (AC_INIT): Bump to 2.59c.

2004-08-20  Paul Eggert  <eggert@cs.ucla.edu>

	Version 2.59b.

	* README: Add advice about m4 1.4.2.

	* Makefile.cfg (wget_files): Remove config.guess, config.sub,
	texinfo.tex for now (done by hand now).
	* Makefile.maint (wget_files, cvs_files):
	Remove ansi2knr.c; nobody uses it.
	(ansi2knr.c-url_prefix): Remove.
	(cvs-update): Fix test for failure.  I don't know why it ever
	worked...

	* doc/autoconf.texi: Update URLs, some of which went stale.
	Use @uref rather than @href.

	* lib/autoconf/general.m4 (_AC_INIT_PARSE_ARGS): Have configure
	handle "--" as per POSIX.  Suggested by Paul Pogonyshev.

	* config/config.guess, config/config.sub, config/elisp-comp,
	config/install-sh, config/mkinstalldirs, config/texinfo.tex,
	doc/fdl.texi, doc/standards.texi: Sync with master copy.

	* NEWS, TODO, configure.ac, bin/autoscan.in,
	bin/autoupdate.in, bin/ifnames.in, doc/autoconf.texi,
	doc/install.texi, lib/Autom4te/Configure_ac.pm,
	lib/Autom4te/FileUtils.pm, lib/autoconf/general.m4,
	lib/autoconf/programs.m4, lib/autoconf/status.m4,
	lib/autotest/general.m4, lib/m4sugar/m4sh.m4,
	lib/m4sugar/m4sugar.m4, tests/local.at, tests/m4sh.at,
	tests/tools.at, tests/torture.at:
	Use "file name" rather than "filename" or "path",
	to be consistent with the terminology of the GNU coding standards.

2004-08-19  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/c.m4 (AC_LANG_BOOL_COMPILE_TRY(C),
	AC_C_LONG_DOUBLE): Undo 2004-06-04 change, as it didn't work with
	HP-UX 11.23 cc/aCC or Tru64 4.0 cc.  Problem reported by Noah Misch in
	<http://lists.gnu.org/archive/html/autoconf/2004-07/msg00004.html>.

	More fixes to support spaces in the name of the build directory.
	This isn't a complete fix but it's an improvement.

	* bin/autoconf.as (autom4te_options): New var.
	Use it instead of appending to AUTOM4TE, so that we can allow
	spaces in the build directory's absolute name.
	* bin/autoheader.in ($autoconf): Allow spaces in file names.
	* lib/autotest/general.m4 (AT_INIT, AT_CLEANUP, _AT_CHECK,
	AT_CHECK_NOESCAPE): Likewise.
	* tests/wrapper.as (testdir, AUTOM4TE_CFG, autom4te_perllibdir,
	main program): Likewise.

2004-08-18  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/general.m4 (_AC_INIT_HELP): Quote $ac_popdir uses.
	From Ralf Corsepius in:
	http://lists.gnu.org/archive/html/autoconf-patches/2004-08/msg00014.html

2004-08-12  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Function Portability): Document isinf and
	and isnan.  From a suggestion by Kevin Ryde.

	* lib/Autom4te/General.pm (END): Return correct exit status even
	if unlink succeeds and sets $?.  Needed with Solaris 8's perl 5.00503.

2004-08-09  Paul Eggert  <eggert@cs.ucla.edu>

	* tests/torture.at (Deep Package): Use configure.in, not configure.ac,
	for compatibility with Automake 1.4.  Reported by J C Fitzgerald in
	<http://lists.gnu.org/archive/html/bug-autoconf/2003-08/msg00051.html>.

2004-08-04  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autoconf/general.m4 (AC_REQUIRE_AUX_FILE): New empty macro.
	(AC_CANONICAL_BUILD): Call it to require config.sub and config.guess.
	* lib/autoconf/programs.m4 (AC_PROG_INSTALL): Likewise for install-sh.
	* doc/autoconf.texi (Input): Document AC_REQUIRE_AUX_FILE.
	* lib/autom4te.in (Automake-preselections): Preselect
	AC_REQUIRE_AUX_FILE.  Automake 1.10 will trace it.

2004-08-02  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autom4te.in (Automake-preselections): Preselect
	AC_CANONICAL_BUILD and AC_CANONICAL_TARGET.  Automake 1.9.1 will
	trace them.

2004-07-29  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (_AS_BOURNE_COMPATIBLE): Set BIN_SH, for
	Tru64.
	* doc/autoconf.texi (Shellology): Mention BIN_SH.
	Document problem with "`""`" in pdksh POSIX mode.

2004-07-27  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (_AS_BOURNE_COMPATIBLE): Use "set -o posix"
	with pdksh, too.  Problem reported by Patrick Welche via
	Gary V. Vaughan.
	* doc/autoconf.texi (Shellology): Note that set -o posix is
	useful for pkdsh, too.

2004-06-24  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/m4sugar/m4sh.m4 (_AS_DETECT_BETTER_SHELL): Require
	_AS_UNSET_PREPARE, so that we can use $as_unset directly.
	Don't fail if ENV or BASH_ENV is readonly.
	(AS_SHELL_SANITIZE): Don't fail if ENV, MAIL, MAILPATH, LC_ALL,
	etc. are read only.  Problem reported by Ludovic Courtes.

2004-06-23  Noah Misch  <noah@cs.caltech.edu>

	* lib/m4sugar/m4sh.m4 (_AS_BOURNE_COMPATIBLE): If the shell is
	zsh, disable GLOB_SUBST to avoid backslash handling problems.
	(trivial change)

2004-06-04  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (File System Conventions): Warn about
	names like "aux".  Problem reported by Eric Blake.

	* lib/autoconf/c.m4 (AC_LANG_BOOL_COMPILE_TRY (C)): Use division
	by zero instead of array size, so that we can use any arithmetic
	constant expression (instead of requiring an integer constant
	expression).  This allows us to test expressions like DBL_MAX <
	LDBL_MAX, which didn't conform to the C standard using the old
	method.
	(AC_C_LONG_DOUBLE): Put back in the tests for LDBL_MAX and LDBL_EPSILON,
	now that we can do floating-point tests at compile time.

2004-06-02  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/c.m4 (AC_C_LONG_DOUBLE): Don't check LDBL_MAX
	and LDBL_EPSILON, as the resulting expression isn't an
	integer constant expression and violates the C standard.
	Problem reported by Nelson H. F. Beebe.  Also, check
	for "L" suffix, and check that long double doesn't have
	worse range or precision than double, that mixed-mode
	arithmetic doesn't generate a diagnostic, that double
	constants fit in long double.

2004-06-03  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Function Portability): Add notes on free(NULL),
	malloc(0) and realloc(NULL,size).

	* doc/autoconf.texi (Shell Substitutions): Spelling error reported by
	Bob Proulx.

2004-05-31  Paul Eggert  <eggert@cs.ucla.edu>

	* lib/autoconf/headers.m4 (HAVE_STDBOOL_H): Detect _Bool bug
	in HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003].  Problem reported
	by Jim Meyering.

2004-05-26  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Builtins): Mention that ! COMMAND
	can be rewritten using if-then-else.  Suggested by Bruno Haible.

2004-05-25  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (testsuite Scripts): Fix typo.
	Problem reported by Stepan Kasal.

2004-05-24  Paul Eggert  <eggert@cs.ucla.edu>

	* tests/Makefile.am (autoconfdir): Fix to match comment (trivial
	change).  Patch reported by Ralf Wildenhues in
	<http://mail.gnu.org/archive/html/bug-autoconf/2004-05/msg00092.html>.

	* lib/autoconf/functions.m4 (AC_FUNC_MBRTOWC): Don't assume that a
	function F exists if the compiler and linker let you compile an
	expression like (F != 0).  Recent versions of GCC optimize away
	the reference to F in that case, since every function address must
	be nonzero, so the link succeeds even if F does not exist.
	Problem reported by Manu in
	<http://mail.gnu.org/archive/html/bug-gnu-utils/2004-05/msg00060.html>.

	* doc/autoconf.texi (Systemology): Standardize on the spelling of
	"Unix".  Many uses changed.
	(Limitations of Builtins): Explain better why the ! command isn't
	portable.

2004-05-22  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autom4te.in (Automake-preselections): Preselect
	LT_SUPPORTED_TAG in lieu of AC_LIBTOOL_TAGS.

2004-05-19  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Function Portability): Add strerror_r, cross
	referencing AC_FUNC_STRERROR_R.

	* doc/autoconf.texi (Particular Functions): In AC_FUNC_CLOSEDIR_VOID,
	note pessimistic assumption when cross compiling.

2004-05-16  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Limitations of Make): Note that BSD make
	(until 2004) invoked subcommands with sh -e, contra POSIX.
	Reported by Kevin Ryde.

2004-05-10  Eric Sunshine  <sunshine@sunshineco.com>

	* programs.m4 (_AC_PROG_GREP): Fixed bug where PATH argument handed to
	_AC_PATH_PROG_FEATURE_CHECK contained leading whitespace (i.e.
	"        $PATH:/usr/xpg4/bin"). This resulted in bogus tests, such as
	`test -f "        /usr/bin/grep"', which _always_ failed.
	(AC_PROG_SED): Ditto bogus PATH fix.
	* autoconf.texi (AC_PROG_GREP): Properly document that this macro
	requires that grep correctly supports _multiple_ `-e' options, rather
	than stating only that grep should accept `-e'.

2004-05-03  Paul Eggert  <eggert@cs.ucla.edu>

	Port to C99, which requires that 'exit' be declared.

	* lib/autoconf/c.m4 (AC_C_BIGENDIAN): Use AC_INCLUDES_DEFAULT
	to ensure that stdlib.h is included.
	* lib/autoconf/functions.m4 (_AC_LIBOBJ_ALLOCA, AC_FUNC_SETPGRP,
	AC_FUNC_STRTOD, AC_FUNC_SETVBUF_REVERSED, AC_FUNC_FORK, _AC_FUNC_FORK,
	_AC_FUNC_VFORK, AC_FUNC_WAIT3): Likewise.
	* lib/autoconf/specific.m4 (AC_SYS_RESTARTABLE_SYSCALLS): Likewise.
	* lib/autoconf/types.m4 (AC_TYPE_GETGROUPS): Likewise.
	* lib/autoconf/headers.m4 (AC_HEADER_STDC): Include <stdlib.h>
	when using 'exit' in a test; C99 requires that 'exit' be declared.

2004-05-02  Paul Eggert  <eggert@cs.ucla.edu>

	* doc/autoconf.texi (Particular Programs): AC_PROG_GREP
	now prefers 'grep' implementations that accept -e.
	(Limitations of Usual Tools): Describe problems of traditional
	egrep and fgrep with long input lines, and of traditional grep
	with -e.
	* lib/autoconf/programs.m4 (AC_PROG_GREP): Check for -e, too.
	(_AC_PROG_GREP): Assume 3rd arg is properly quoted for the shell.
	All callers changed.  Append /usr/xpg4/bin to the PATH, for
	Solaris.
	(_AC_FEATURE_CHECK_LENGTH): Discard stderr, so we don't bother
	the user with complaints about multiple -e options.
	* tests/local.at (AC_STATE_SAVE): Use $GREP, not grep.
	Define it with AC_PROG_GREP.
	* configure.ac (AC_PROG_GREP): Add.
	* lib/freeze.mk (GREP): New macro.

2004-05-02  Eric Sunshine  <sunshine@sunshineco.com>

	* lib/m4sugar/m4sh.m4 (_AS_DETECT_BETTER_SHELL): Consult $SHELL as
	a possible candidate only after all others fail, rather than
	consulting it first.  This improves backward compatibility by
	better reflecting the way shell selection occurred in previous
	versions of Autoconf, and should help to avoid triggering latent
	problems in other packages, such as the one in Automake where zsh
	is not handled robustly:
	http://mail.gnu.org/archive/html/automake/2004-04/msg00095.html
	Although it is not Autoconf's responsibility to work around
	problems in Automake, it nevertheless makes sense to avoid
	introducing unnecessary incompatibilites.

2004-04-22  Albert Chin-A-Young  <china@thewrittenword.com>,
	    Gary V. Vaughan  <gary@gnu.org>

	* lib/autoconf/programs.m4 (_AC_FEATURE_CHECK_LENGTH): Don't guess
	how deeply nested we are when a suitable tool is found, set the
	ac_path_TOOL_found flag.
	(_AC_PATH_PROG_FEATURE_CHECK): Encapsulate knowledge of how deeply
	nested we are in this macro.  Break out of all 3 nested loops if
	ac_path_TOOL_found is set.

2004-04-21  Gary V. Vaughan  <gary@gnu.org>

	* lib/autoconf/programs.m4 (_AC_FEATURE_CHECK_LENGTH): Break out
	of the _AS_PATH_WALK loop too if GNU flavor is found.

2004-04-21  Alexandre Duret-Lutz  <adl@gnu.org>

	* doc/autoconf.texi (Limitations of Make): Update documentation
	for `$<'.  New entry `Long lines', based on a report from Simon
	Josefsson.  Augment the documentation for SHELL = @SHELL@ with a
	paragraph about DJGPP, based on a mail from Richard Dawe.

2004-04-20  Paul Eggert  <eggert@twinsun.com>

	* tests/c.at (C keywords): Don't assume that GCC supports
	"restrict" and "inline", as sufficiently-old GCC versions do not
	(also, GCC configured to be in pedantic C89 mode does not).
	Problem reported by Sumit Pandya in:
	http://mail.gnu.org/archive/html/autoconf/2004-04/msg00092.html

	* lib/autoconf/c.m4 (_AC_PROG_CC_G, _AC_PROG_CXX_G): Don't
	consider -g to work if it generates warnings when plain compiles
	don't.  Problem reported by Braden McDaniel in:
	http://mail.gnu.org/archive/html/autoconf-patches/2003-07/msg00014.html

	* doc/autoconf.texi (Slashes): New section, to document a problem
	reported by Jim Meyering in:
	http://mail.gnu.org/archive/html/bug-coreutils/2004-02/msg00060.html

	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Remove potential
	linker output files before linking, to work around IRIX 6 linker bug.
	Problem reported by Rainer Orth in:
	http://mail.gnu.org/archive/html/autoconf-patches/2004-02/msg00007.html

2004-04-20  Gary V. Vaughan  <gary@gnu.org>

	* lib/autoconf/programs.m4 (_AC_FEATURE_CHECK_LENGTH): Make the
	best tool so far counter rely on the tool path variable name to
	avoid checks for one tool being affected by the results of running
	the length check on a previous tool.

	* lib/autoconf/programs.m4 (_AC_PROG_GREP): Take an additional
	match expression argument, as different greps have different
	regular expression flavours.
	(AC_PROG_FGREP): Pass 'FGREP'. fgrep treats all match chars as
	literals.
	(AC_PROG_EGREP): Pass 'EGREP$'.
	(AC_PROG_GREP): Pass 'GREP$'.

2004-04-20  Albert Chin-A-Young  <china@thewrittenword.com>

	* lib/autoconf/programs.m4 (AC_PROG_GREP): Cache variable
	is `ac_cv_path_GREP', not `oc_cv_path_GREP'.

2004-03-29  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Particular Headers, Particular Types, Generic
	Types, Specific Compiler Characteristics, System Services,
	Obsolete Macros): Use 'long int', 'short int', 'unsigned int'
	etc. consistently instead of 'long', 'short', 'unsigned' etc.
	* lib/autoconf/c.m4 (AC_LANG_INT_SAVE(C), AC_C_BIGENDIAN): Likewise.
	* lib/autoconf/functions.m4 (AC_FUNC_MMAP, AC_FUNC_SELECT_ARGTYPES):
	Likewise.
	* lib/autoconf/headers.m4 (AC_HEADER_SYS_WAIT): Likewise.
	* lib/autoconf/types.m4 (AC_TYPE_GETGROUPS, AC_TYPE_SIZE_T,
	AC_TYPE_OFF_T): Likewise.
	* tests/semantics.at (AC_CHECK_TYPES: backward compatibility):
	Likewise.

	* tests/foreign.at (Libtool): Create an empty aclocal.m4, to
	pacify libtool 1.5.2.  Fix quoting problems in sed command.

2004-03-28  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Particular Structures): AC_STRUCT_TIMEZONE
	now defines HAVE_DECL_TZNAME if it is declared, when
	HAVE_STRUCT_TM_TM_ZONE is not defined.
	* lib/autoconf/types.m4 (AC_STRUCT_TIMEZONE): Implement this.
	Do not assume atoi.  Rely on HAVE_DECL_TZNAME when testing
	for HAVE_TZNAME.

2004-03-28  Steven G. Johnson  <stevenj@fftw.org>

	* lib/autoconf/fortran.m4 (_AC_PROG_FC_V_OUTPUT): Corrected
	superfluous backslashing of quotes (") in sed expressions;
	thanks to Paul Eggert.

2004-03-26  Steven G. Johnson  <stevenj@alum.mit.edu>

	* lib/autoconf/fortran.m4 (_AC_PROG_FC): new name of Intel
	Fortran compiler is ifort, also added pghpf; thanks to Nelson
	H. F. Beebe for the bug report.

2004-03-26  Steven G. Johnson  <stevenj@fftw.org>

	* lib/autoconf/fortran.m4 (_AC_PROG_FC_V_OUTPUT): fix for
	quoted -cmdline argument in Portland Group compiler (bug
	reported by Jeffrey J. Barteet).

2004-03-25  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Specifying Names): Move cross_compiling ovindex to
	(Run Time): ... here, where it's now mentioned.

2004-03-19  Alexandre Duret-Lutz  <adl@gnu.org>

	* doc/autoconf.texi (autom4te Invocation): Language Autoconf
	inherits from language Autoconf-without-aclocal-m4.
	(Customizing autom4te): Adjust example; the cache must now be
	disabled for language Autoconf-without-aclocal-m4.

2004-03-16  Paolo Bonzini  <bonzini@gnu.org>
	    Nathanael Nerode  <neroden@twcny.rr.com>

	* lib/autoconf/programs.m4 (AC_PATH_TOOL, AC_CHECK_TOOL,
	AC_CHECK_TOOLS): Warn if a cross-tool is found without
	a prefix.
	(AC_PATH_TARGET_TOOL, AC_CHECK_TARGET_TOOL,
	AC_CHECK_TARGET_TOOLS): New macros.
	* doc/autoconf.texi (Generic Programs): Document
	(AC_PATH_TARGET_TOOL, AC_CHECK_TARGET_TOOL,
	AC_CHECK_TARGET_TOOLS, and warn for future changes
	in the behavior of AC_PATH_TOOL, AC_CHECK_TOOL and
	AC_CHECK_TOOLS.
	(Specifying Names): Document the reason for these future
	behavioral changes.
	* tests/mktests.sh: Do not generate tests for the
	new macros.
	* NEWS: Document these changes.

	* doc/autoconf.texi: Avoid macros with unbraced arguments,
	they make TeX hang up.

2004-03-15  Paul Eggert  <eggert@bogus.example.com>

	* NEWS: New macro AC_CHECK_ALIGNOF.
	* doc/autoconf.texi (Generic Compiler Characteristics): Document it.
	* lib/autoconf/types.m4 (AC_CHECK_SIZEOF): Use long int rather than
	int; avoid "a `$1'" since this isn't grammatical if $1 begins with a
	vowel.
	(AC_CHECK_ALIGNOF): New macro.
	* tests/mktests.sh (ac_exclude_list): Exclude AC_CHECK_ALIGNOF.
	* tests/semantics.at (AC_CHECK_ALIGNOF): Add tests similar to
	those for sizeof.

2004-03-03  Paul Eggert  <eggert@twinsun.com>

	* bin/Makefile.am (edit): Don't use $< in a context where
	POSIX doesn't require support for it.  Use $@.in instead.
	Problem reported by Anthony N. Frasso in
	<http://mail.gnu.org/archive/html/autoconf/2004-03/msg00008.html>.
	* bin/autoscan.in, bin/autoupdate.in: Add @configure_input@ comment.

2004-02-23  Gary V. Vaughan  <gary@gnu.org>

	* bin/autoreconf.in (autoreconf_current_directory): Recognize LT_INIT
	from the next generation of Libtool.
	* lib/autom4te.in (Autoreconf-preselections): Ditto.

2004-02-20  Alexandre Duret-Lutz  <adl@gnu.org>

	* doc/autoconf.texi (Limitations of Usual Tools) <mkdir>: `mkdir -p'
	is not always thread-safe.  Report from Nathanael Nerode.

2004-02-18  Paul Eggert  <eggert@twinsun.com>

	Fix a dependencies problem, stemming from a Autoconf 2.59 build
	problem on QNX reported by Stephen Rasku in
	<http://mail.gnu.org/archive/html/bug-autoconf/2004-02/msg00066.html>.

	* bin/Makefile.am ($(srcdir)/autoconf.in): Depend on
	$(m4sh_m4f_dependencies); this removes a FIXME.
	* tests/Makefile.am ($(srcdir)/wrapper.in): Likewise.
	(MAINTAINERCLEANFILES): Split into pieces,
	one per related section.  Add $(srcdir)/wrapper.in.

2004-02-09  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Setting Output Variables): Emphasize that
	AC_SUBST provides no portable way to escape literal newlines.

	* lib/autoconf/fortran.m4 (_AC_FC_LIBRARY_LDFLAGS): Ignore all
	flags of the form -lcrt*.o, not just -lcrt[01].o and -lcrtbegin.o.
	Darwin uses -lcrt2.o and there's little point to cataloging all
	the system variants.  Partial fix reported by Andreas Waechter in:
	http://mail.gnu.org/archive/html/autoconf-patches/2004-02/msg00006.html
	for bug reported by Nelson H. F. Beebe in:
	http://mail.gnu.org/archive/html/bug-autoconf/2003-12/msg00090.html

2004-02-04  Paolo Bonzini  <bonzini@gnu.org>

	* doc/autoconf.texi (AU_DEFUN): Fix English,
	suggested by Paul Eggert.
	* lib/autoconf/autoupdate.m4: Correct reference to
	acobsolete.m4, suggested by Alexandre Duret-Lutz.

2004-02-02  Paolo Bonzini  <bonzini@gnu.org>

	* bin/autoupdate.in: Define __file__ so that warnings
	refer to the correct file.
	* doc/autoconf.texi (AU_DEFUN): Describe more correctly
	the behavior of the third argument.
	* lib/autoconf/autoupdate.m4 (AU_DEFUN): Describe more
	correctly the behavior of the third argument.  Document
	what the three macros that AU_DEFUN defines do.  Fix
	warning message when the third argument includes $0
	(reported by Alexandre Duret-Lutz).

2004-01-30  Paolo Bonzini  <bonzini@gnu.org>
	    Eric Sunshine  <sunshine@sunshineco.com>
	    Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (M4SH-SANITIZE): New diversion.
	(AS_INIT): Output shell initialization there. Removed optional
	parameter. Expand _AS_SHELL_FN_SPY.
	(AS_INIT_WITH_SHELL_FN): Removed.
	(_AS_SHELL_FN_SPY): New macro.
	(AS_DETECT_REQUIRED, AS_DETECT_SUGGESTED): New
	macros.
	(AS_SHELL_SANITIZE): Remove loop to find better shell
	and documentation for the parameter.
	(_AS_DETECT_BETTER_SHELL): Move it here.
	(_AS_SHELL_FN_WORK): Remove shell invocation, reformat.
	(_AS_RUN): Move it here, support testing with eval.
	(AS_REQUIRE_SHELL_FN): Require shell functions when
	it is used.
	(_AS_LINENO_WORKS): Put around braces, we do not
	trigger the bash bug anymore.
	* lib/autotest/general.m4: Document M4SH-SANITIZE, do not
	use AS_INIT_WITH_SHELL_FN.
	* bin/autoconf.in, tests/wrapper.in: Regenerated.

2004-01-30  Paolo Bonzini  <bonzini@gnu.org>

	* bin/autoupdate.in: Trace AU_DEFINE instead of AU_DEFUN.
	* doc/autoconf.texi: Don't say that the third parameter
	is broken.
	* lib/autoconf/autoupdate.m4 (AU_DEFINE): New dummy macro.
	(AU_DEFUN): Honor the third parameter, create autoupdate
	macros with AU_DEFINE.
	* lib/autoconf/headers.m4 (AC_USG, AC_MEMORY_H,
	AC_DIR_HEADER): Use AU_DEFUN's third parameter.
	* lib/autoconf/lang.m4 (AC_LANG_SAVE): Likewise.
	* lib/autoconf/programs.m4 (AC_RSH): Likewise.
	* lib/autoconf/specific.m4 (AC_HAVE_POUNDBANG,
	AC_ARG_ARRAY, AC_CYGWIN, AC_EMXOS2, AC_MINGW32,
	AC_XENIX_DIR): Likewise.
	* lib/autoconf/types.m4 (AC_INT_16_BITS, AC_LONG_64_BITS,
	AC_STRUCT_ST_BLKSIZE, AC_STRUCT_ST_RDEV): Likewise.
	* lib/autoconf/status.m4: Remove FIXME.
	* tests/local.at (AT_CHECK_AU_MACRO): Ignore stderr, check
	that the macro is not present anymore in the updated
	configure.ac.
	* tests/tools.at (autoupdate AC_LINK_FILES): Ignore stderr
	of autoupdate.

2004-01-28  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): Add 2004 to
	copyright years.
	* lib/autoconf/general.m4 (_AC_INIT_COPYRIGHT): Add 1992 thorugh
	2003 (except 1997) to the list of copyright years.  This undoes
	the 2003-05-22 change, which removed the older years from the list.
	* lib/autoconf/status.m4 (AC_OUTPUT): Update copyright date to 2004.

2004-01-27  Gary V. Vaughan  <gary@gnu.org>
	    Albert Chin-A-Young  <china@thewrittenword.com>

	* lib/autoconf/programs.m4 (AC_PROG_GREP): New macro to test for a
	grep or ggrep program in PATH that accepts as long lines as
	possible.
	* lib/autoconf/programs.m4 (_AC_PROG_GREP): Factor out the core of
	AC_PROG_GREP.
	(AC_PROG_EGREP, AC_PROG_FGREP): Use it to find best available
	egrep and fgrep respectively if $GREP -E/-F don't work.
	(_AC_PATH_PROG_FEATURE_CHECK): Factor out the common core of
	_AC_PROG_GREP, and AC_PROG_SED.
	(_AC_FEATURE_CHECK_LENGTH): New helper macro for finding the
	longest input length accepted by a command.
	(AC_PROG_SED): Use it.
	* doc/autoconf.texi (Particular Programs): Document the changes.
	* NEWS: Updated.

2004-01-27  Paul Eggert  <eggert@twinsun.com>

	* bin/autoconf.as ($version): Update copyright from 2003 to 2004.
	* bin/autoheader.in, bin/autom4te.in, bin/autoreconf.in,
	bin/autoscan.in, bin/autoupdate.in, bin/ifnames.in: Likewise.
	* lib/autoconf/general.m4 (_AC_INIT_COPYRIGHT): Likewise.

	* Makefile.in, aclocal.m4, configure, bin/Makefile.in,
	bin/autoconf.in, config/Makefile.in, config/config.guess,
	config/config.sub, config/install-sh, config/mdate-sh,
	config/mkinstalldirs, config/texinfo.tex, doc/Makefile.in,
	lib/Makefile.in, lib/Autom4te/Makefile.in,
	lib/autoconf/Makefile.in, lib/autoscan/Makefile.in,
	lib/autotest/Makefile.in, lib/emacs/Makefile.in,
	lib/m4sugar/Makefile.in, man/Makefile.in, man/autoconf.1,
	man/autoheader.1, man/autom4te.1, man/autoreconf.1,
	man/autoscan.1, man/autoupdate.1, man/config.guess.1,
	man/config.sub.1, man/ifnames.1, tests/Makefile.in,
	tests/acc.at, tests/acfortran.at, tests/acfunctions.at,
	tests/acgeneral.at, tests/acheaders.at, tests/aclang.at,
	tests/aclibs.at, tests/acspecific.at, tests/acstatus.at,
	tests/actypes.at: Regenerate and/or sync with original
	sources.

2004-01-26  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Default Includes): Include <stdint.h> even if
	HAVE_INTTYPES_H is defined.  This is needed on Tru64 5.1b with
	Compac C V6.5-207 (dtk), which defines uintmax_t in <stdint.h> but
	not <inttypes.h>.  Problem reported by Tim Mooney in
	<http://mail.gnu.org/archive/html/bug-coreutils/2004-01/msg00147.html>.
	* lib/autoconf/headers.m4 (_AC_INCLUDES_DEFAULT_REQUIREMENTS):
	Likewise.

	* lib/autoconf/programs.m4 (AC_PROG_SED): Use diff, not sed;
	otherwise "make check" fails because it forbids cmp (I guess
	because cmp treats files as binary on DOS-like systems).

	* tests/mktests.sh: Update copyright date to 2004, since some tests
	have changed in 2004.

2004-01-23  Gary V. Vaughan  <gary@gnu.org>

	* lib/autoconf/programs.m4 (AC_PROG_SED):  New macro to test for a
	non-truncating sed or gsed program in PATH.
	* tests/acprograms.at: Add it.
	* doc/autoconf.texi (Particular Programs): Document it.
	* NEWS: Updated.

2004-01-15  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/c.m4 (_AC_PROG_CC_STDC): Try -std, not -std1, since
	-std1 disables some useful extensions on Tru64.  Problem reported
	by N. Lichtmaier in
	<http://mail.gnu.org/archive/html/autoconf/2004-01/msg00100.html>.

2004-01-14  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Programming in M4sh): Document that
	AS_MKDIR_P succeeds if the destination is a symbolic link
	to an existing directory.
	(Limitations of Usual Tools): Note that mkdir -p might not
	succeed on symlinks to directories.

2004-01-13  Paul Hilfinger  <hilfinger@CS.Berkeley.EDU>

	* lib/autoconf/autoupdate.m4 (AU_DEFUN): Grammar fix in comment.
	* bin/autoheader.in: Grammar fix in message.
	* lib/m4sugar/m4sh.m4 (AS_MKDIR_P):
	Test for dir before calling mkdir -p.  (trivial changes)

2004-01-13  Eric Blake  <ebb9@byu.net>

	* doc/autoconf.texi (Obsolete Macros): In AC_TRY_COMPILE and
	AC_TRY_LINK, s/AC_LANG_SOURCE/AC_LANG_PROGRAM/.  (trivial change)

2004-01-10  Jim Meyering  <jim@meyering.net>

	* doc/autoconf.texi (Running the Preprocessor): Correct grammar.

2004-01-09  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/general.m4: Fix bug: AC_CHECK_SIZEOF evokes a warning
	with `autoconf -Wall,error'.  Bug reported by Eric Blake in:
	http://mail.gnu.org/archive/html/autoconf-patches/2004-01/msg00000.html
	(_AC_COMPUTE_INT_COMPILE): Invoke _AC_COMPILE_IFELSE, not
	AC_COMPILE_IFELSE, since we now assume our caller invokes
	AC_LANG_COMPILER_REQUIRE, for symmetry with _AC_COMPUTE_INT_RUN.
	(_AC_COMPUTE_INT_RUN): Likewise, for _AC_RUN_IFELSE instead
	of AC_RUN_IFELSE; this avoids the warning mentioned above.
	(_AC_COMPUTE_INT): Invoke AC_LANG_COMPILER_REQUIRE.

2004-01-07  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/general.m4 (_AC_LIBOBJS_NORMALIZE): Avoid \$ inside
	`"'...'"`, as it's confusing (and I suspect it may not work on
	some platforms).  The code was incorrect anyway, as it assumed
	that \$ evaluated to itself in that context.  Reported by
	Alexandre Duret-Lutz.

2004-01-07  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autom4te.in (Automake-preselections): Preselect AC_LIBTOOL_TAGS
	and _LT_AC_TAGCONFIG.

2004-01-06  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (One Macro Call): Fix an incorrect
	example, and add more examples.  Reported by Eric Sunshine.

2004-01-05  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Limitations of Usual Tools):
	Remove warning against "rm -fr" introduced yesterday; it
	was a false alarm.

	* bin/Makefile.am (autoconf, autoheader, autom4te, autoreconf,
	autoscan, autoupdate, ifnames): Don't use chmod -w.
	* lib/Makefile.am (autom4te.cfg): Likewise.
	* doc/autoconf.texi (Limitations of Usual Tools): Warn against
	"chmod -w".

2004-01-04  Paul Eggert  <eggert@twinsun.com>
	    Paolo Bonzini  <bonzini@gnu.org>

	* lib/m4sugar/m4sh.m4 (_AS_LINENO_PREPARE): Speed up sed scripts
	by doing lineno substitution only on lines containing "$LINENO".

2004-01-04  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/general.m4 (AC_ARG_PROGRAM):
	Use "rm -f" to remove conftest.sed, not plain "rm".
	Bug reported by David Relson in
	<http://mail.gnu.org/archive/html/autoconf/2004-01/msg00011.html>.

	* Makefile.am (autom4te-update):
	Replace "rm -rf" and "rm -fr" with "rm -f -r", as POSIX requires.
	* Makefile.maint (my-distcheck, do-po-update): Likewise.
	* doc/autoconf.texi (Guidelines): Likewise.
	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Likewise.
	* lib/autoconf/libs.m4 (_AC_PATH_X_XMKMF): Likewise.
	* lib/autoconf/specific.m4 (AC_SYS_LONG_FILE_NAMES): Likewise.
	* lib/autotest/general.m4 (AT_INIT): Likewise.
	* lib/m4sugar/m4sh.m4 (AS_TMPDIR): Likewise.
	* tests/Makefile.am (clean-local): Likewise.
	* tests/tortue.at (AC_CONFIG_FILES, HEADERS, LINKS and COMMANDS,
	srcdir): Likewise.
	* doc/autoconf.texi (Limitations of Usual Tools):
	Warn against "rm -fr".

2004-01-03  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Limitations of Usual Tools): Mention that cc
	-c -o might not work.  From a suggestion by Kevin Ryde.
	(C Compiler, Generating Sources, Limitations
	of Usual Tools, Limitations of Make, Making testsuite Scripts):
	Don't put '-o' after non-options, as POSIX doesn't allow this.
	Mention that cc's name might be gcc or c89 or whatever.

2004-01-04  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi: Add various further index entries.

2003-12-29  Paul Eggert  <eggert@twinsun.com>

	* bin/autoreconf.in (autoreconf_current_directory):
	Fix typo: mkdir without umask arg.

2003-12-27  Alexandre Duret-Lutz  <adl@gnu.org>

	* doc/autoconf.texi (Limitations of Make) <Automatic rule rewriting>:
	Documents OSF1/Tru64 make behavior.  Replace `VPATH = ../src' by
	`VPATH = ../pkg/src' in examples to make the OSF1/Tru64 make
	explanation clearer.

2003-12-24  Andreas Schwab  <schwab@suse.de>

	* doc/autoconf.texi (Default Includes): Fix misspelling of
	AC_INCLUDES_DEFAULT.

2003-12-03  Paolo Bonzini  <bonzini@gnu.org>

	* configure.ac: Test if sh -n works.
	* configure: Regenerate.
	* tests/atlocal.in: Store the result here.
	* tests/local.at (AT_CHECK_SHELL_SYNTAX): Extracted from
	tools.at, looking in atlocal's ac_cv_sh_n_works instead
	of explicitly testing.
	(AT_CHECK_PERL_SYNTAX): Moved from tools.at.
	(AT_CHECK_AUTOCONF): Test for the configure script syntax.
	* tests/tools.at (Syntax of the shell scripts): Simplify
	using AT_CHECK_SHELL_SYNTAX.
	(Syntax of the Perl scripts): Remove definition of
	AT_CHECK_PERL_SYNTAX.

2003-12-03  Paolo Bonzini  <bonzini@gnu.org>

	* lib/m4sugar/m4sh.m4 (_AS_SHELL_FN_WORK): Redirect
	stderr to /dev/null.
	* bin/autoconf.in: Regenerate.
	* bin/wrapper.in: Regenerate.

2003-11-26  Paolo Bonzini  <bonzini@gnu.org>

	* lib/m4sugar/m4sh.m4 (_AS_BOURNE_COMPATIBLE):
	Extracted from AS_SHELL_SANITIZE.
	(_AS_SHELL_FN_WORK, AS_INIT_WITH_SHELL_FN): New
	macros.
	(AS_SHELL_SANITIZE): Move reinvocation code from
	_AS_LINENO_WORKS, use it to find out if shell
	functions work.
	(_AS_LINENO_WORKS): Don't find another shell if $LINENO
	does not work.
	(AS_INIT): Pass parameter down to AS_SHELL_SANITIZE.
	(AS_REQUIRE_SHELL_FN): Test that AS_INIT_WITH_SHELL_FN
	was called.
	* lib/autotest/general.m4: Use AS_INIT_WITH_SHELL_FN.
	* bin/autoconf.in: Regenerate.
	* tests/wrapper.in: Regenerate.
	* tests/tools.at: Test the syntax of tests/autoconf
	and tests/testsuite.

2003-11-24  Akim Demaille  <akim@epita.fr>

	* config/announce-gen (&print_locations, &print_signatures)
	(&sizes): New.
	Use them.
	No longer rely on Gnus to inline the list of signatures: compute
	them on the fly.

2003-11-24  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Particular Programs): AC_PROG_LEX can
	override some files.
	(Input): AC_CONFIG_AUX_DIR(aux) is a bad idea on DOS.
	From Debian Autoconf 2.58.

2003-11-24  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_OUTPUT_SUBDIRS): Quote $ac_popdir
	uses.
	From Debian Autoconf 2.58.

2003-11-24  Paolo Bonzini  <bonzini@gnu.org>

	* TODO: Remove already done things.  Update the part about finding
	tools for the target.

2003-11-24  Paolo Bonzini  <bonzini@gnu.org>

	* lib/autoconf/headers.m4 (AC_USG, AC_MEMORY_H, AC_DIR_HEADER):
	Make wording more consistent.
	* lib/autoconf/specific.m4 (AC_CYGWIN, AC_EMXOS2, AC_MINGW32):
	Explain the transition better.
	* lib/autoconf/types.m4 (AC_INT_16_BITS, AC_LONG_64_BITS): Explain
	the transition better.

2003-11-24  Paolo Bonzini  <bonzini@gnu.org>

	* doc/autoconf.texi (Obsoleting Macros): Don't document the third
	parameter of AU_DEFUN.
	* lib/autoconf/autoupdate.m4 (AU_DEFINE): Remove.
	(AU_DEFUN): Remove the third parameter, it was not used.
	Use AC_DEFUN directly, not AU_DEFINE.
	* lib/autoconf/status.m4 (AC_LINK_FILES): Move the message into
	the expanded body, consistently with other macros such as AC_USG.

2003-11-17  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Put at least 14 bytes
	into the initial confdefs.h, to work around a bug in NextStep 3.3
	patch 3 reported by Eric Sunshine.

2003-11-15  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Using System Type): Revise, showing $host rather
	than $target since the latter is not usual, add guidelines on when to
	use or not use the system type.

2003-11-12  Derek Price  <derek@ximbiot.com>

	* doc/autoconf.texi (Limitations of Usual Tools): Fix what looks like a
	typo misrepaired by an auto-spellcheck.

2003-11-12  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (&parse_args): Don't call automake with
	--force-missing unless it actually supports it.
	From Debian #219336.

2003-11-12  Akim Demaille  <akim@epita.fr>

	* configure.ac: Bump to 2.59a.
	Require 2.59.

2003-11-06  Akim Demaille  <akim@epita.fr>

	Version 2.59.

2003-11-05  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autoconf/status.m4 (_AC_SRCPATHS): Fix use of AS_SET_CATFILE
	so that ac_abs_builddir, ac_abs_top_builddir, ac_abs_srcdir,
	and ac_abs_top_srcdir are absolute paths.
	* lib/m4sugar/m4sh.m4 (AS_SET_CATFILE): Remove misleading comment.

2003-11-05  Akim Demaille  <akim@epita.fr>

	* configure.ac: Bump to 2.58a.

2003-11-05  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Using Autotest): Avoid @strong{Note: ...}, since
	it provokes a warning from makeinfo about looking like a cross
	reference in info output.

	* doc/autoconf.texi (Function Portability): Add notes on signal
	handler return type, as per AC_TYPE_SIGNAL.

2003-11-04  Akim Demaille  <akim@epita.fr>

	Version 2.58.
	* doc/standards.texi: Update from master.

	* tests/mktests.sh (ac_exclude_list): Add AC_FC_FREEFORM.

2003-11-04  Akim Demaille  <akim@epita.fr>

	AC_CONFIG_FILE([d1/foo:d2/foo]) triggers error messages when
	computing the absolute path to d1 in the source hierarchy: it may
	not exist at all.  So don't cd into it.
	From Alexandre Duret-Lutz.
	http://mail.gnu.org/archive/html/bug-autoconf/2003-10/msg00205.html

	* lib/m4sugar/m4sh.m4 (AS_SET_CATFILE): New.
	From Paul Eggert, but named after Perl's IO::Spec->catfile.
	* doc/autoconf.texi (Programming in M4sh): Document.
	* lib/autoconf/status.m4 (_AC_SRCPATHS): Use it.

2003-11-03  Pavel Roskin  <proski@gnu.org>

	* doc/autoconf.texi (Generic Structure Checks): Describe
	action-if-found and action-if-not-found in AC_CHECK_MEMBERS.

2003-10-31  Akim Demaille  <akim@epita.fr>

	* tests/fortran.at (GNU Fortran 77): Don't run FC macros.
	(GNU Fortran): New.
	* doc/autoconf.texi (Language Choice): Document.
	* lib/autoconf/fortran.m4 (AC_FC_SRCEXT, AC_FC_FREEFORM): Assert
	the current language is Fortran.

2003-10-31  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&freeze): Use a less likely warning separator
	than `\n\n', so that `\n\n\n' is valid in warnings.
	Reported by Steve Huston.

2003-10-28  Akim Demaille  <akim@epita.fr>

	* Makefile.cfg (local_updates, executable-update): Tweak to be
	robust to parallel makes.
	Suggested by Alexandre Duret-Lutz.

2003-10-27  Akim Demaille  <akim@epita.fr>

	* Makefile.cfg (executable-update): New.
	(local_updates): Call it.

2003-10-27  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_RUN_IFELSE, _AC_INIT_PREPARE):
	Don't remove core.* as it may remove valid user files.
	* lib/autoconf/functions.m4 (AC_FUNC_SETVBUF_REVERSED)
	(AC_FUNC_UTIME_NULL): Likewise.

2003-10-23  Akim Demaille  <akim@epita.fr>

	Version 2.57g.
	* config/config.guess, config/config.sub: Upgrade from masters.

2003-10-23  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/fortran.m4 (AC_FC_SRCEXT): Functions using
	AC_COMPILE_IFELSE that use break skip the clean up.  So do it by
	hand...

2003-10-23  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_LINK_IFELSE, _AC_COMPILE_IFELSE):
	Don't forget to remove conftest.err.

2003-10-23  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_LIBOBJ): Don't insert twice the
	same object file in $LIBOBJS.
	Reported by Alexandre Duret-Lutz & Derek Robert Price.
	* doc/autoconf.texi (Generic Functions): Adjust.

2003-10-20  Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (_AS_TR_SH_PREPARE, _AS_TR_CPP_PREPARE):
	Use 'eval', so that the resulting configure scripts work even if
	the current directory has a weird file name like 'y%s+%pp%;s%@%_%g'.

2003-10-20  Daniel Jacobowitz  <drow@mvista.com>

	* lib/autoconf/lang.m4 (AC_LANG_WERROR): New macro.
	* lib/autoconf/general.m4 (_AC_COMPILE_IFELSE, _AC_PREPROC_IFELSE)
	(_AC_LINK_IFELSE): Check the werror flag.
	* doc/autoconf.texi (Generic Compiler Characteristics): Document
	AC_LANG_WERROR.
	* NEWS: Mention it.

2003-10-20  Daniel Jacobowitz  <drow@mvista.com>

	* lib/autoconf/lang.m4 (AC_NO_EXECUTABLES): Override
	_AC_COMPILER_EXEEXT to attempt a link.  If linking fails,
	override AC_LINK_IFELSE.

2003-10-15  Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (_AS_UNSET_PREPARE): Work around a bug in
	pdksh 5.2.14.  Bug reported by Ralf Corsepius.
	* doc/autoconf.texi (Shellology): Mention the Korn shell and pdksh.
	Mention /usr/dt/bin/dtksh on Solaris.
	(Shell Substitutions): Warn about $((...)).
	(Parentheses): New section.

2003-10-15  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Function Portability): Add @prindex for exit.
	Add putenv and unsetenv.  Add sysconf _SC_PAGE_SIZE.

2003-10-13  Nathanael Nerode  <neroden@gcc.gnu.org>

	* lib/autoconf/functions.m4 (AC_FUNC_FORK): Trivial fix for vfork
	cross test.

2003-10-11  Steven G. Johnson  <stevenj@alum.mit.edu>

	* lib/autoconf/fortran.m4 (_AC_PROG_FC): Use the new official
	name for the GNU Fortran 95+ compiler, 'gfortran', not 'g95'.

2003-10-10  Andreas Schwab  <schwab@suse.de>

	* bin/autoheader.in: Avoid empty first line in --version and
	--help output.
	* bin/ifnames.in: Likewise.

2003-10-09  Paul Eggert  <eggert@twinsun.com>

	* lib/Autom4te/XFile.pm: Don't assume -j is solo.
	Issue a more-informative diagnostic.
	Problems reported by Eric Sunshine.

2003-10-08  Steven G. Johnson  <stevenj@alum.mit.edu>

	* lib/autoconf/fortran.m4 (_AC_PROG_FC_V_OUTPUT): Omit quoted
	-mGLOB_options_string stuff for Intel ifc, which can cause
	_AC_FC_LIBRARY_LDFLAGS to fail.  Use (faster) case for
	pattern-matching instead of grep.

2003-10-08  Steven G. Johnson  <stevenj@alum.mit.edu>

	* doc/autoconf.texi: Document new FC Fortran macros.

2003-10-08  Gary V. Vaughan  <gary@gnu.org>

	* lib/autoconf/general.m4 (AC_CONFIG_MACRO_DIR): Stub out a macro
	that future autopoint/aclocal/automake/autoreconf will be able
	to trace to find where to install local m4 macros.
	* doc/autoconf.texi (Input): Document it.
	* NEWS: Updated.

2003-10-06  Gary V. Vaughan  <gary@gnu.org>

	* lib/autoconf/fortran.m4 (_AC_FC_LIBRARY_LDFLAGS): Add
	-lcrtbegin.o to list of ignored flags and fix underquoting of
	-lcrt[01].o.

2003-10-04  Steven G. Johnson  <stevenj@ab-initio.mit.edu>

	* lib/autoconf/fortran.m4 (_AC_PROG_FC_G): Use language-specific
	cache variable instead of $G77 to decide whether to include -O2,
	since $G77 is specific to Fortran 77.

2003-10-03  Steven G. Johnson  <stevenj@alum.mit.edu>

	* lib/autoconf/fortran.m4 (AC_FC_FREEFORM): Support Absoft "-f
	free" flag.  Re-order flags tested into rough order of popularity.

2003-10-03  Steven G. Johnson  <stevenj@alum.mit.edu>

	* lib/autoconf/fortran.m4 (AC_PROG_FC): Reverse the order of the
	arguments so that it can be used with syntax identical to
	AC_PROG_F77, and so that we can more easily decide to
	remove/deprecate the DIALECT optional argument in the future if it
	proves troublesome.
	(AC_FC_FREEFORM): Exit 77 upon failure to fix test suite for
	non-freeform-supporting compilers.  Document freeform flags.

2003-10-03  Akim Demaille  <akim@epita.fr>

	* configure.ac: Look for emacs, not macs.
	Reported by Eric Sunshine.

2003-10-03  Akim Demaille  <akim@epita.fr>

	* lib/autom4te.in (Autoreconf-preselections): Trace AC_CONFIG_AUX_DIR.
	* bin/autoreconf.in (autoreconf_current_directory): Create the
	AUX_DIR if needed, for sake of automake --add-missing etc.
	Suggested by Alexandre Duret-Lutz.

2003-10-03  Akim Demaille  <akim@epita.fr>

	* configure.ac: Quotation and formatting changes.
	(EMACS): Don't set it if it is not recent enough to support
	autoconf-mode.el.
	From Eric Sunshine.

2003-10-02  Akim Demaille  <akim@epita.fr>

	* bin/ifnames.in (&scan_file): Skip C++ comments.
	From Jeremy Yallop.

2003-10-01  Pavel Roskin  <proski@gnu.org>

	* doc/autoconf.texi (Particular Structure Checks):
	Fix misspelling of HAVE_STRUCT_STAT_ST_BLOCKS.

2003-10-01  Akim Demaille  <akim@epita.fr>

	Version 2.57f.

2003-09-30  Paul Eggert  <eggert@twinsun.com>

	* lib/Autom4te/XFile.pm: Use Errno.
	(lock): Ignore ENOLCK errors.  Problem reported Andreas Schwab in
	<http://mail.gnu.org/archive/html/bug-autoconf/2003-09/msg00141.html>.

2003-09-30  Akim Demaille  <akim@epita.fr>

	* config/announce-gen (&print_news_deltas): Extracted from...
	(&print_changelog_deltas): here.
	(&news_file): Rename as...
	(@news_file): this.

2003-09-30  Nicolas Joly  <njoly@pasteur.fr>

	* lib/autoconf/fortran.m4 (_AC_PROG_FC): Remove files which might
	have been created when invoking the compiler.
	* tests/fortran.at (GNU Fortran 77): Quote $G77.

2003-09-29  Akim Demaille  <akim@epita.fr>

	Version 2.57e.

	* config/mkinstalldirs: Upgrade.

2003-09-28  Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Set DUALCASE=1, for MKS sh.
	Problem reported by Lars J. Aas in
	<http://mail.gnu.org/archive/html/autoconf/2003-07/msg00042.html>.
	(_AS_MKDIR_P_PREPARE): Change "rm -fr ./-p" to the more-conservative
	"test -d ./-p && rmdir ./-p".  Suggested by Andreas Schwab in:
	http://mail.gnu.org/archive/html/autoconf-patches/2003-09/msg00039.html

2003-09-26  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_OUTPUT_COMMANDS): Make sure the
	directory for AC_CONFIG_COMMANDS' first argument exists.
	This makes valid the invocation of _AC_SRCPATH that follows.
	Reported by Eric Sunshine.
	* doc/autoconf.texi (Configuration Commands): Adjust.

2003-09-26  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (Autom4te::FileUtils): Use it for find_file.
	Reported by Ralf Corsepius.

2003-09-26  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (AC_HELP_STRING): Don't overquote the
	arguments.
	Actually, use AU_ALIAS.
	From Bruno Haible.

2003-09-26  Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (_AS_MKDIR_P_PREPARE): If mkdir -p . fails,
	rm -fr ./-p to remove junk left behind on NextStep and OpenStep.
	Problem reported by Eric Sunshine in:
	http://mail.gnu.org/archive/html/autoconf-patches/2002-12/msg00014.html

2003-09-26  Akim Demaille  <akim@epita.fr>

	The test suite are sometimes assigning timings incorrectly.
	Reported by Henk Krus.
	Diagnosed by Nicolas Joly.

	* lib/autotest/general.m4 (AT_CLEANUP): Rename AT_help as
	AT_help_all.
	Instead of making AT_help a sequence of assignments to grow
	$at_help_all, just make AT_help_all be the growing contents of
	$at_help_all, and make a single assignment in...
	(AT_INIT): here.
	(at_times_skip): Flip the meaning and rename as...
	(at_times_p): this.
	(AT_INIT): When summarizing the test that ran, remove
	$at_times_file after use, and check it is present before trying to
	use it.

2003-09-25  Akim Demaille  <akim@epita.fr>

	Version 2.57d.

	* bin/Makefile.am (edit): Handle '@configure_input@'.
	(autoconf, autoheader, autom4te, autoreconf, autoscan, autoupdate)
	(ifnames): chmod -w.
	* tests/wrapper.as (AUTOCONF, AUTOM4TE, ): Point to tests/
	executables, not bin/ executables!  Otherwise all the magic needed
	to find non installed files is turned off.  This caused a failure
	of test 40 and 41 that ran aclocal 1.8 which in turn ran autom4te
	as found in its environment (sent by tests/autoreconf): pointing
	to bin/autom4te that could not find its files.
	* tests/mktests.sh: Force the replacement of generated files, for
	the sake of "mv" program that are interactive when overwriting a
	-w file.
	* config/install-sh: Upgrade from CVS Automake.

2003-09-23  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Limitations of Builtins): Document test -h
	versus test -L issues.

2003-09-23  Daniel Jacobowitz  <drow@mvista.com> and
	    Paul Eggert  <eggert@twinsun.com>

	Trivial change to support GCC's configuration procedure.
	* lib/autoconf/c.m4 (AC_PROG_CPP_WERROR): New macro.
	* lib/autoconf/headers.m4 (_AC_CHECK_HEADER_MONGREL): Don't warn
	about inconsistency if the preprocessor is set to give errors for
	any warning.
	* doc/autoconf.texi (C Compiler Characteristics): Document this.

2003-09-13  Alexandre Duret-Lutz  <adl@gnu.org>

	* Makefile.am (autom4te-update, autom4te_files): Fetch Struct.pm
	and XFile.pm from Automake.
	* lib/Autom4te/XFile.pm: Update from Automake.

2003-09-12  Akim Demaille  <akim@epita.fr>

	Version 2.57c.

2003-09-12  Akim Demaille  <akim@epita.fr>

	* config/config.guess, config/config.sub, config/missing,
	* lib/Autom4te/Channels.pm, lib/Autom4te/Configure_ac.pm: Update
	from masters.

2003-09-12  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Header Portability): Promote linux/types.h,
	not asm/types.h.

2003-09-11  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Header Portability): linux/random.h.
	From Peter Hendrickson.

2003-09-10  Akim Demaille  <akim@epita.fr>

	* tests/mktests.sh (au_exclude_egrep): Make it harder to be
	willing to edit the output files.

2003-09-10  Akim Demaille  <akim@epita.fr>

	* tests/fortran.at (GNU Fortran 77): Also exercise AC_FC_SRCEXT
	and AC_FC_FREEFORM.
	* tests/mktests.sh: Skip AC_FC_SRCEXT.
	* lib/autoconf/fortran.m4 (AC_FC_SRCEXT, AC_FC_FREEFORM): Likewise.

2003-09-09  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/FileUtils.pm (&update_file): s/cannot not/cannot/g.
	Reported by Gary Vaughan.
	* bin/autom4te.in (handle_m4): Likewise.

2003-09-09  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/FileUtils.pm (&update_file): Be sure not to leave
	trailing files.

2003-09-07  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/specific.m4 (AC_SYS_RESTARTABLE_SYSCALLS):
	Improve the accuracy of the wording about obsolescence.
	From a suggestion by Ian Lance Taylor in
	<http://mail.gnu.org/archive/html/autoconf/2003-09/msg00044.html>.

2003-09-05  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/fortran.m4 (AC_FC_FREEFORM): Try -ffree-form too,
	for the benefit of g77 3.2.  Fix suggested by Steven G. Johnson.

2003-09-04  Akim Demaille  <akim@epita.fr>

	* tests/mktests.sh (ac_exclude_list): Fix the filtering of
	AC_FUNC_WAIT3.

2003-09-04  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in: Use &fatal where more appropriate than &error.
	(freeze): When exiting, use $exit_code.
	* lib/autoconf/fortran.m4: Comment changes.

2003-09-04  Akim Demaille  <akim@epita.fr>

	* tests/mktests.sh (ac_exclude_list): Add AC_FC_FUNC.

2003-09-02  Steven G. Johnson  <stevenj@alum.mit.edu>

	Add support for newer Fortran dialects.  The F77 interface is
	unchanged, and continues to support Fortran 77.  New FC macros
	correspond to all the old F77 macros, with output variables FC,
	FCFLAGS, and FCLIBS.  AC_PROG_FC defaults to picking the newest
	available dialect, but older dialects can be specified.  There are
	new macros AC_FC_SRCEXT to set the source extension, and
	AC_FC_FREEFORM to accept free-form source files.

	* lib/autoconf/c.m4 (_AC_LANG_PREFIX(C), _AC_LANG_PREFIX(C++)):
	New macros.
	(AC_LANG_PROGRAM(C)): Invoke _AC_LANG_PROGRAM_C_FC_HOOKS if defined.
	* lib/autoconf/fortran.m4 (AC_LANG(Fortran), _AC_FORTRAN_ASSERT,
	_AC_LANG_ABBREV(Fortran), _AC_LANG_PREFIX(Fortran 77),
	_AC_LANG_PREFIX(Fortran), _AC_FC, AC_LANG_SOURCE(Fortran),
	AC_LANG_PROGRAM(Fortran), AC_LANG_CALL(Fortran),
	AC_LANG_PREPROC(Fortran), AC_LANG_COMPILER(Fortran),
	_AC_FC_DIALECT_YEAR, _AC_F95_FC, _AC_F90_FC, _AC_F77_FC,
	_AC_PROG_FC, AC_PROG_FC, _AC_PROG_FC_G, _AC_PROG_FC_C_O,
	AC_PROG_FC_C_O, _AC_PROG_FC_V_OUTPUT, _AC_PROG_FC_V,
	_AC_FC_LIBRARY_LDFLAGS, AC_FC_LIBRARY_LDFLAGS, _AC_FC_DUMMY_MAIN,
	AC_FC_DUMMY_MAIN, _AC_FC_MAIN, AC_FC_MAIN, __AC_FC_NAME_MANGLING,
	_AC_FC_WRAPPERS, AC_FC_WRAPPERS, _AC_FC_FUNC, AC_FC_FUNC,
	AC_FC_SRCEXT, AC_FC_FREEFORM):
	New macros.
	(AC_PROG_F77, AC_PROG_F77_C_O, AC_F77_LIBRARY_LDFLAGS,
	AC_F77_DUMMY_MAIN, AC_F77_MAIN, _AC_F77_NAME_MANGLING,
	AC_F77_NAME_MANGLING, AC_F77_WRAPPERS, AC_F77_FUNC):
	Rewrite in terms of the above.
	(_AC_PROG_F77_G, _AC_PROG_F77_V_OUTPUT, _AC_PROG_F77_V): Remove.
	* lib/autoconf/lang.m4 (_AC_LANG_PREFIX): New macro.
	* tests/acfortran.at: Test AC_FC_FREEFORM, AC_FC_FUNC,
	AC_FC_MAIN, AC_FC_SRCEXT, AC_FC_WRAPPERS, AC_PROG_FC_C_O.

2003-09-02  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Limitations of Usual Tools, Limitations of Make):
	Document problems with timestamp resolution that 'make', 'cp -p', and
	'touch -r' have.

2003-08-27  Akim Demaille  <akim@epita.fr>

	* tests/m4sugar.at (cross_warning): Make sure to enable the
	output, so that we can track spurious m4sugar output.
	* tests/local.at: Require 2.57.
	(AT_CHECK_M4SUGAR, AT_CHECK_M4SH): Don't m4_default the arguments that
	are defaulted by AT_CHECK anyway.
	Use AT_CHECK_AUTOM4TE.
	* lib/m4sugar/m4sugar.m4: There should be no output at all: add a
	missing dnl.

2003-08-27  Akim Demaille  <akim@epita.fr>

	* bin/autoheader.in: Issue the "Using auxiliary..." message only
	when -Wobsolete is set.
	Set it on by default.
	Suggested by Klee Dienes.

2003-08-27  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (AC_FUNC_FSEEKO, AC_SYS_LARGEFILE): More
	documentation.
	From Guido Draheim.

2003-08-26  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Output): Make clear that one can run code
	after AC_OUTPUT.

2003-08-25  Akim Demaille  <akim@epita.fr>

	* config/announce-gen, GNUmakefile, Makefile.maint: Update from
	CVS Bison.

2003-08-25  Alexandre Duret-Lutz  <adl@gnu.org>

	* bin/autoreconf.in (parse_args): Do not pass --no-force to
	Automake versions prior to 1.8.

2003-08-25  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Header Portability): netinet/if_ether.h.
	From Ville Karaila.

2003-08-24  Akim Demaille  <akim@epita.fr>

	* configure.ac: Bump to 2.57c.

2003-08-22  Akim Demaille  <akim@epita.fr>

	Version 2.57b.

	* Makefile.cfg (local-checks-to-skip): New.
	* Makefile.maint (local-check): Rename as...
	(local-checks-available): this.
	(local-check): New.

	* Makefile.am (EXTRA_DIST): Add Makefile.cfg.
	* configure.ac: Require Automake 1.7.6.

2003-08-22  Akim Demaille  <akim@epita.fr>

	Output stack traces in warnings.

	* lib/m4sugar/m4sugar.m4 (_m4_warn): New.
	Replace the former...
	(m4_warn): Pass the call stack to _m4_warn.
	* bin/autom4te.in: Adjust to output the call stack.
	* tests/m4sugar.at (m4@&t@_warn): Adjust.

2003-08-22  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/Request.pm, lib/Autom4te/C4che.pm: New.
	* bin/autom4te.in: Adjust.

2003-08-21  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (&file_name_is_absolute): Remove.
	(&verbose): Remove.
	(&getopt): Adjust the note and verb channels, depending upon
	--verbose.
	* bin/autoheader.in, bin/autom4te.in, bin/autoscan.in,
	* bin/autoupdate.in: Adjust.
	Use &verb, not &verbose.

2003-08-21  Akim Demaille  <akim@epita.fr>

	* bin/autoheader.in (&parse_args): Use &parse_warnings and
	&parse_WARNINGS.
	($help): Use Autom4te::ChannelDefs::usage.
	* bin/autoscan.in: Use Autom4te::ChannelDefs.
	* lib/Autom4te/General.pm: Don't export error: you don't own it.

2003-08-21  Akim Demaille  <akim@epita.fr>

	First stab at preserving warnings between calls to autom4te,
	including when the cache is used.

	There are still several issues: (i) there are too many runs of m4
	(one for include, one for warnings, and some more), (ii) warnings
	spreading on several lines are not handled gracefully, (iii) the
	code meant to have the call stack display for errors does not work
	(its handling should move from m4 to autom4te).

	* bin/autom4te.in Autom4te::Channels, Autom4te::ChannelDefs):
	Use them.
	(@preselect): Add m4_warn.
	($exit_status): Remove, use $exit_code.
	($help): Use Autom4te::ChannelDefs::usage.
	(&handle_m4): No longer define the m4_warnings.
	At each run, extract and report the warnings.
	Always cache the result, including if the exit status is on
	failure, since if nothing changes, we should result in the same
	failure, hence we can use the cache.
	* lib/m4sugar/m4sugar.m4 (m4_warning_ifelse, _m4_warning_ifelse)
	(_m4_warning_error_ifelse, __m4_warning_error_ifelse, _m4_warn):
	Remove.
	(m4_warn): Redefine as a do-nothing: it is its invocation that
	matters, as warnings are now reported via traces.
	* lib/autoconf/general.m4 (AC_DIAGNOSE): Don't make it a copy of
	the contents of m4_warn: make it _call_ m4_warn, so that tracing
	the latter reveals calls to the former.

	Adjust the tests.

	* tests/m4sugar.at (m4@&t@_warn): Use existing warning categories.

2003-08-21  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.pm (Autom4te::Channels, Autom4te::ChannelDefs):
	Use them.

2003-08-21  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/FileUtils.pm (&find_file): Walk the @include in
	forward order.
	* lib/Autom4te/ChannelDefs.pm: Doc typos.
	(&parse_warnings): Accept a list of warning requests.
	(&usage): Return a string, not a side effect.
	(cross): New warning category.

2003-08-21  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/Configure_ac.pm (&find_configure_ac)
	(&require_configure_ac): Accept an optional directory argument.
	($configure_ac): Remove.
	* lib/Autom4te/General.pm (&find_configure_ac, &canonfile)
	(&catfile): Remove.
	* bin/autoheader.in, bin/autoreconf.in, bin/autoupdate.in,
	* bin/autoscan.in: Adjust.

2003-08-20  Akim Demaille  <akim@epita.fr>

	* bin/autoheader.in: Remove duplicate 'use Autom4te::FileUtils'.
	Reported by Alexandre Duret-Lutz.

2003-08-20  Akim Demaille  <akim@epita.fr>

	* bin/autoupdate.in, bin/autoheader.in, bin/autoreconf.in,
	* bin/autom4te: Adjust.
	In particular, be Autoconf tools are really silent when properly
	working, bind the verbosity of the 'note' channel to $verbose.
	* lib/Autom4te/General.pm (&find_file, &mtime, &update_file)
	(&xsystem, &contents): Remove, since they are exported by...
	* lib/Autom4te/FileUtils.pm: this.
	More perldoc.
	* lib/Autom4te/General.pm (&up_to_date_p): Move to...
	* lib/Autom4te/FileUtils.pm: here.

2003-08-20  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/Channels.pm, lib/Autom4te/ChannelDefs.pm
	* lib/Autom4te/Configure_ac.pm, lib/Autom4te/FileUtils.pm: New,
	from CVS Automake.

2003-08-20  Akim Demaille  <akim@epita.fr>

	* Makefile.am (automake_cvsweb, automake_cvsargs, autom4te_files)
	(autom4te-update): New.
	* Makefile.cfg (update): Bind autom4te-update.

2003-08-19  Derek Price  <derek@ximbiot.com>

	* lib/autotest/general.m4: Comment various HELP_* diversions.
	(PARSE_ARGS_BEGIN): New section for option parsing related
	initialization.
	(AT_ARG_OPTION,AT_ARG_OPTION_ARG,_AT_ARG_OPTION): New macros to define
	package specific options and associated help.

2003-08-19  Akim Demaille  <akim@epita.fr>

	* config/announce-gen, Makefile.cfg: New.
	* Makefile.am: Adjust.
	* GNUmakefile, Makefile.maint: Update from CVS Coreutils.

2003-08-19  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autom4te.in (Automake-preselections): Preselect
	AC_CONFIG_LIBOBJ_DIR, AC_CONFIG_LINKS, m4_include,
	and m4_sinclude.

2003-08-19  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/autom4te.in (Autoconf): Move all args except aclocal.m4? into ...
	(Autoconf-without-aclocal-m4): ... this new language.
	* doc/autoconf.texi (autom4te Invocation): Mention
	Autoconf-without-aclocal-m4.

2003-08-18  Derek Price  <derek@ximbiot.com>

	* doc/autoconf.texi (Writing testsuite.at): Document RUN-IF-FAIL &
	RUN-IF-PASS optional arguments.

2003-08-18  Derek Price  <derek@ximbiot.com>

	* doc/autoconf.texi (Programming in M4sh): Add doc for AS_IF.

2003-08-16  Derek Price  <derek@ximbiot.com>

	* doc/autoconf.texi (Writing testsuite.at): Document defaults for
	STDOUT & STDERR arguments.

2003-08-14  Derek Price  <derek@ximbiot.com>

	* lib/autotestgeneral.m4 (AT_INIT): Reformat test summary line to print
	DESCRIPTION rather than FILE and LINE.  Shorten result to fit in new,
	shorter column three.  Add DESCRIPTION to log file content.

2003-08-13  Derek Price  <derek@ximbiot.com>

	* lib/autotest/general.m4 (AT_INIT): Correct typo in final status
	output.

2003-08-12  Derek Price  <derek@ximbiot.com>

	* lib/autotest/general.m4 (AT_CHECK): Use new _AT_CHECK API.
	(AT_CHECK_NOESCAPE): Move core functionality to...
	(_AT_CHECK): ...this new macro.

2003-08-07  Derek Price  <derek@ximbiot.com>

	* lib/autotest/general.m4 (AT_CHECK): Move core functionality...
	(AT_CHECK_NOESCAPE): ...to this new macro.

2003-07-31  Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (_AS_UNSET_PREPARE): Work around a bug
	in Bash 2.01.  Problem reported by Brian Gough in
	<http://mail.gnu.org/archive/html/bug-autoconf/2003-07/msg00106.html>.

2003-07-25  John W. Eaton  <jwe@bevo.che.wisc.edu>

	* lib/autoconf/fortran.m4 (AC_F77_LIBRARY_LDFLAGS): Also ignore
	-lcrt1.o, for OS X.  (trivial change)

2003-07-07  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/c.m4 (AC_C_INLINE): Wrap the '#define inline ...'
	inside '#ifndef __cplusplus'.  Problem reported by
	Bob Friesenhahn.

2003-07-06  Bill Clarke  <llib@computer.org>

	* lib/autoconf/functions.m4 (AC_FUNC_MMAP): Cast pointer to
	'long', not 'int', for benefit of Sun's recent C++ compilers
	(trivial change).  See:
	http://mail.gnu.org/archive/html/autoconf-patches/2003-07/msg00007.html
	(This really should be 'intptr_t', not 'long', but that would
	take more work.)

2003-06-25  Akim Demaille  <akim@epita.fr>

	* lib/Makefile.am (autom4te.cfg): Make it read only.
	Depend on Makefile since it contains substitutions.
	From Paolo Bonzini.
	* lib/autom4te.in (args): Add local.at? for Autotest args.
	This change was made on autom4te.cfg which is generated.
	Reported by Raja R. Harinath.

2003-06-25  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Header Portability): sys/mount.h.
	From Gareth McCaughan.

2003-06-23  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Report a single config.log,
	not all of them.  This fixes 1. the fact that when testing
	Autoconf there are many many config.log, 2. the incorrect use of
	top_srcdir to find config.log.
	Don't mix the detailed output of failed test with the summary of
	failures.  Rather, append detailed log afterwards.

2003-06-23  Akim Demaille  <akim@epita.fr>

	* tests/local.at (AT_CHECK_CONFIGURE): Adjust to the verbose being
	always run: output config.log on $at_group_log.

2003-06-23  Akim Demaille  <akim@epita.fr>

	* tests/torture.at (#define header templates): Don't use quotes in
	C++ comments as it puzzles Emacs' sh font-lock-mode.

2003-06-23  Akim Demaille  <akim@epita.fr>

	* tests/mktests.sh (au_exclude_egrep): Fix output copyright notice.
	* lib/autom4te.cfg (args): Add local.at? for Autotest args.
	* tests/atspecific.m4: Rename as...
	* tests/local.at: This.
	* tests/suite.at: Move the globals into...
	* tests/local.at: here.
	* tests/Makefile.am: Adjust.
	* doc/autoconf.texi (testsuite Scripts): Adjust.

2003-06-21  Kevin Ryde  <user42@zip.com.au>

	* lib/autoconf/c.m4 (_AC_PROG_CC_STDC): Extend test program to get an
	error from OSF 4.0 Compaq cc in its default almost-ANSI mode, thereby
	ensuring we add -std1 for full-ANSI.

	* doc/autoconf.texi (hdrindex): New macro.
	Add index entries for portability of various standard header files.

2003-06-20  Akim Demaille  <akim@epita.fr>

	* configure.ac: Bump to 2.57b.

2003-06-20  Akim Demaille  <akim@epita.fr>

	Version 2.57a.

2003-06-20  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in: Don't rely on $HOME being defined.
	Reported by Marc Espie as PR/233.

2003-06-20  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4: Use at_times_file only if used.
	From Nicolas Joly.

2003-06-20  Akim Demaille  <akim@epita.fr>

	* config/config.guess, config/config.sub, config/elisp-comp,
	* config/install-sh, config/mkinstalldirs, doc/standards.texi:
	Update from masters.

2003-06-11  Paolo Bonzini  <bonzini@gnu.org>

	* doc/autoconf.texi (Writing testsuite.at): Document AT_XFAIL_IF
	* lib/autotest/general.m4 (AT_XFAIL_IF): New macro.
	(TEST_SCRIPT): New diversion.
	(AT_SETUP): Divert output to TEST_SCRIPT and move some code...
	(AT_CLEANUP): ...to here.  Undivert TEST_SCRIPT.
	(AT_INIT): Support for expected failures.

2003-06-02  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in, bin/autoscan.in, bin/autoheader.in: White space
	changes.
	* lib/Autom4te/General.pm (&backname): Remove, no longer used by
	Autoconf nor Automake.
	(&contents): New, from Automake.
	PODify.

2003-05-28  Paul Eggert  <eggert@twinsun.com>

	* NEWS, doc/autoconf.texi (Particular Functions),
	lib/autoconf/functions.m4 (AC_FUNC_MKTIME): Check that mktime
	is the inverse of localtime.

2003-05-25  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/Autom4te/General.pm (END): Print diagnostics to STDERR.
	(handle_exec_errors): New function.  Work around $! being
	altered by WEXITSTATUS.
	(xqx, xsystem): Use handle_exec_errors.

2003-05-23  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/Autom4te/General.pm (END): Rewrite exit code processing.
	Do not call `_exit()', simply modify `$?'.
	(xsystem): Reset $! before running system, and check it afterward.
	* tests/tools.at (autoupdating AC_PREREQ): Expect exit status
	63 for version mismatches.

2003-05-23  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4: Prefer "TAB-SP" to "SP-TAB", because of
	Emacs' dangerous whitespace.el behavior (smashing "useless" spaces in
	the middle of a line).
	* lib/m4sugar/m4sugar.m4: Likewise.
	Remove useless spaces in comments.

2003-05-23  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sugar.m4 (m4_version_prereq): Failure causes an
	exit 63, so that we (or Automake's "missing") can tell the
	difference with a plain failure.
	* doc/autoconf.texi (Notices): Adjust.

2003-05-23  Akim Demaille  <akim@epita.fr>

	* Makefile.am, bin/Makefile.am, config/Makefile.am,
	* doc/Makefile.am, lib/autoconf/Makefile.am, tests/Makefile.am:
	White spaces cleanup.

2003-05-22  Jim Meyering  <jim@meyering.net>
	    Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/c.m4 (_AC_PROG_CXX_EXIT_DECLARATION):
	Remove `#include <stdlib.h>' from the list; we should never
	make confdefs.h include <stdlib.h> or <cstdlib>, because the
	resulting namespace pollution would cause other tests to fail.
	Configure scripts run with some older versions of g++ and HP's
	aCC would fail due to such an #include.  Problems reported by
	Matthew Mueller in <http://bugs.debian.org/120704> and by
	Keith Bostic in
	<http://mail.gnu.org/archive/html/autoconf/2003-05/msg00063.html>.
	In the test, use the test declaration before including <stdlib.h>,
	as that's closer to how it'll be used.

2003-05-23  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Header Portability): ucred.h.
	From Ian Redfern.

2003-05-22  Paolo Bonzini  <bonzini@gnu.org>

	Overhaul Autotest's logging: generate separate log files
	in testsuite.dir/NNN/testsuite.log, and append them to
	testsuite.log instead of re-running the test verbosely.

	* lib/autotest/general.m4 (AT_INIT): Use a single redirected
	file descriptor, write 0 to at_status_file instead of setting
	at_status=0, initialize some new variables (at_status_file,
	at_group_log, at_suite_log, at_tee_pipe).  Remove the cruft
	to rerun the tests, instead append the at_group_log to the
	at_suite_log when a test fails.
	(AT_SETUP): pipe the test case's output into at_tee_pipe,
	with the AS_MESSAGE_LOG_FD redirected to stdout.
	(AT_CLEANUP): save the output status in $at_status_file
	and restore it, redirect the AS_MESSAGE_LOG_FD back to
	its original place.
	(AT_CHECK): since tests are run with a redirected stdout,
	and used to be re-run in verbose mode, turn some $at_verbose
	into echo, and don't redirect the output of testing stdout
	and stderr.

	* lib/autotest/autoconf.texi (testsuite Scripts): Update
	the name of the debugging directory and information about
	its contents.

2003-05-22  Paolo Bonzini  <bonzini@gnu.org>

	* lib/m4sugar/m4sh.m4 (AS_REQUIRE): Actually use the 2nd
	parameter.

2003-05-22  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autotest.m4, lib/autoconf/autoupdate.m4
	* lib/autoconf/fortran.m4 lib/autoconf/general.m4
	* lib/autoconf/headers.m4 lib/autoconf/oldnames.m4
	* lib/autoconf/status.m4: Fix and adjust copyright notices.

2003-05-22  Akim Demaille  <akim@epita.fr>

	* aclocal.m4, bin/autoconf.as, lib/autoconf/autoconf.m4,
	* lib/autoconf/autoheader.m4, lib/autoconf/autoupdate.m4,
	* lib/autoconf/c.m4, lib/autoconf/fortran.m4,
	* lib/autoconf/general.m4, lib/autoconf/headers.m4,
	* lib/autoconf/lang.m4, lib/autoconf/libs.m4,
	* lib/autoconf/programs.m4, lib/autoconf/specific.m4,
	* lib/autoconf/status.m4, lib/autoconf/types.m4,
	* lib/autotest/general.m4, lib/m4sugar/m4sugar.m4,
	* tests/atspecific.m4, tests/base.at, tests/compile.at,
	* tests/foreign.at, tests/m4sh.at, tests/semantics.at,
	* tests/tools.at, tests/torture.at:
	Whitespace clean up.
	Suggested by Jim Meyering.

2003-05-22  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (AC_FUNC_GETLOADAVG): Restore smashed
	' \t' as '\t ' so that Emacs' whitespace.el keep it.
	Reported by Jim Meyering.

2003-05-22  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: Replace AC_HELP_STRING AS_HELP_STRING.
	Add AC_HELP_STRING  to the obsolete macros section.
	Typos.
	Use '@.' for sentences that ended in a capital letter.
	From Art Haas.

2003-05-22  Akim Demaille  <akim@epita.fr>

	* config/config.guess, config/config.sub, config/elisp-comp,
	* config/install-sh, config/mdate-sh, config/mkinstalldirs,
	* config/texinfo.tex, doc/standards.texi: Update from masters.

2003-05-21  Paolo Bonzini  <bonzini@gnu.org>

	* lib/m4sugar/m4sh.m4 (AS_VAR_SET): Escape the RHS before passing
	it to eval.

2003-05-21  Akim Demaille  <akim@epita.fr>

	* bin/autoupdate.in ($m4): Fix quotation.
	Reported by Martin Mokrejs.

2003-05-19  Paul Eggert  <eggert@twinsun.com>

	* ChangeLog, ChangeLog.2, THANKS, lib/m4sugar/m4sugar.m4:
	Remove non-ASCII characters.

2003-05-18  Paolo Bonzini  <bonzini@gnu.org>

	* tests/semantics.at (AC_SEARCH_LIBS): New test.
	* tests/semantics.at (AC_CHECK_HEADERS_OLD,
	AC_CHECK_HEADERS_NEW): New tests.

2003-05-17  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4: Use the default includes so that
	memcmp be declared before being tested.
	Reported by Sander Niemeijer.
	(AC_FUNC_ERROR_AT_LINE, AC_FUNC_GETGROUPS, AC_FUNC_STRNLEN): Likewise.
	* doc/autoconf.texi (Default Includes): Document
	AC_INCLUDES_DEFAULT.

2003-05-17  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/specific.m4: Include signal.h and unistd.h.
	* doc/autoconf.texi (Obsolete Macros): Adjust.
	Reported by Werner LEMBERG and Debian Bug 190886.

2003-05-16  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (_AS_UNSET_PREPARE): s/FOO/as_foo/ to avoid
	user name space clashes.
	Reported by Bruno Haible.

2003-05-16  Akim Demaille  <akim@epita.fr>

	* bin/autoheader.in, bin/autom4te.in, bin/autoreconf.in,
	* bin/autoscan.in, bin/autoupdate.in, bin/ifnames.in (BEGIN): Make
	them uniform, and more robust to Perl special characters.
	Reported by Martin Mokrejs.

2003-05-14  Akim Demaille  <akim@epita.fr>

	* tests/foreign.at (Libtool): Skip all Libtools pre 1.4.

2003-05-14  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Header Portability): X11/extensions/scrnsaver.h,
	linux/irda.h.

2003-05-12  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Improve the
	message.
	From Matthias Andree.

2003-05-07  Alexandre Duret-Lutz  <adl@gnu.org>

	* lib/Autom4te/XFile.pm (lock, truncate): Do not pass @_ to flock
	and truncate.

2003-05-06  Akim Demaille  <akim@epita.fr>

	Don't try to be smart with aclocal 1.8+ because (i) aclocal no
	longer updates aclocal.m4 if useless, (ii) if a file m4_included
	by aclocal.m4 is changed it might require the importing of another
	m4 extension file, i.e., aclocal must be run.

	* bin/autoreconf.in (&run_aclocal, $aclocal_supports_force): New.
	(&parse_args): Use --force with aclocal if required and supported.
	(&autoreconf_current_directory): Use &run_aclocal.

2003-05-06  Akim Demaille  <akim@epita.fr>

	Lock autom4te's cache.

	* lib/Autom4te/XFile.pm ($me, &name, &lock, &truncate, &seek): New.
	* bin/autom4te.in (&Request::save, &Request::load): Use an IO::File
	argument instead of a file name, so that the request file remains
	open during the whole autom4te run.
	($icache_file): New.
	(&freeze): Lock the $icache_file.

2003-04-29  Derek Price  <derek@ximbiot.com>

	* lib/autotest/general.m4 (AT_KEYWORDS): Don't use a comma as the
	seperator with m4_append_uniq().  It doesn't work.
	(AT_CLEANUP): Add `;' to end of at_help_all.
	(AT_INIT): Allow --keywords to be specified more than once.  When
	grepping $at_help_all for keywords, use the field and keyword
	seperators to ensure a complete keyword match.  Alter at_prev handling
	to support the new --keywords behavior.

2003-04-27  Karl Berry  <karl@freefriends.org>

	* doc/autoconf.texi: Make the dir entries in the autoconf manual
	align better with others.  I also made some of the individual
	entries on one line, for brevity and to make it easier for me to
	sort my dir-example file in the Texinfo distribution :).

2003-04-12  Jim Meyering  <jim@meyering.net>

	* NEWS: Mention the new macro.
	* lib/autoconf/c.m4 (AC_C_RESTRICT): New macro.
	* doc/autoconf.texi (C Compiler): Describe AC_C_RESTRICT.
	* tests/c.at: Test AC_C_RESTRICT.
	* tests/mktests.sh (ac_exclude_list): Add exclusion for AC_C_RESTRICT.

2003-04-08  Akim Demaille  <akim@epita.fr>

	* bin/ifnames.in: Skip C++ comments.
	From Jeremy Yallop.

2003-04-08  Akim Demaille  <akim@epita.fr>

	* GNUmakefile (SHELL): Don't assume sh is in /bin/.
	From Ilya Zakharevich.

2003-04-08  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Particular Headers): Some about sys/socket.h,
	net/if.h, stdlib.h.

2003-04-01  Derek Price  <derek@ximbiot.com>

	* lib/autoconf/programs.m4 (AC_PROG_INSTALL): Correct syntax error
	from Akim's checkin of 2003-03-29.

2003-04-01  Derek Price  <derek@ximbiot.com>

	* tests/torture.at (Configuring subdirectories): Add missing
	close-quote for Akim's change from 2003-03-28.

2003-04-01  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (ac, at, ms): Rename these indexes as...
	(AC, AT, MS): these.
	(shortindexflag, @acindex, @ahindex, @asindex, @atindex, @msindex):
	New.
	Use them.
	* doc/Makefile.am (CLEANFILES): Adjust.
	(TEXI2DVI): Make it --batch.

2003-03-31  Derek Price  <derek@ximbiot.com>

	* lib/autotest/general.m4: Revert the checkin from 2003-03-27
	which removed the main loop.
	Thanks to Akim Demaille.

2003-03-29  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/programs.m4 (AC_PROG_INSTALL): Skip OS/2's install,
	that starts a GUI.
	From Ilya Zakharevich.

2003-03-29  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/headers.m4 (_AC_CHECK_HEADER_MONGREL): The
	documentation to read is Autoconf's.
	Suggested by Paul Eggert.

2003-03-28  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/headers.m4 (_AC_CHECK_HEADER_MONGREL): Suggest
	reading the section "Present But Cannot Be Compiled" when the
	header causes problems.

2003-03-28  Akim Demaille  <akim@epita.fr>

	* tests/torture.at (Configuring subdirectories): Require aclocal
	1.4, otherwise the test fails, as it does support configure.ac.
	This fixes the "test 40 failed" bug reports.

2003-03-28  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (C Compiler): `#line' portability.
	From Paul Eggert and Nelson H. F. Beebe.

2003-03-27  Derek Price  <derek@ximbiot.com>

	* lib/autotest/general.m4: Eliminate main loop and reorganize test
	layout in order to allow scripting around test groups.

2003-03-27  Derek Price  <derek@ximbiot.com>

	* lib/autotest/general.m4 (PARSE_ARGS,PARSE_ARGS_END,HELP,HELP_MODES,
	HELP_TUNING,HELP_OTHER,HELP_END,PREPARE_TESTS,TESTS_END): Define and
	use new diversions in preparation for accepting new arguments and
	allowing scripting around tests.
	(OPTIONS,TAIL): Remove these diversions to make way for the ones above.

2003-03-26  Derek Price  <derek@ximbiot.com>

	* lib/autoconf/general.m4 (AC_ARG_VAR): Use AS_HELP_STRING instead of
	obsolete AC_HELP_STRING.
	(AC_HELP_STRING): AU_DEFUN to...
	* lib/m4sugar/m4sh.m4 (AS_HELP_STRING): ...here.
	* tests/m4sh.at (AS_HELP_STRING): New test.

	* tests/acgeneral.at: Regenerated.

2003-03-26  Derek Price  <derek@ximbiot.com>

	* lib/autotest/general.m4: s/DEFAULT/DEFAULTS/ since it makes more
	sense.  Verbosify the diversion definitions comment.

2003-03-26  Derek Price  <derek@ximbiot.com>

	* lib/autotest/general.m4 (AT_INIT): Remove redundant call to
	AS_PREPARE.

2003-03-21  Eric Siegerman  <eric_97@pobox.com>

	* doc/autoconf.texi (Present But Cannot Be Compiled):
	Grammar fixes and minor rewording. (trivial change)

2003-03-06  Paul Eggert  <eggert@twinsun.com>

	Work around a problem noted by Nelson H. F. Beebe with coreutils
	4.5.9: Sun c89 (Sun WorkShop 6 update 2 C 5.3 Patch 111679-08
	2002/05/09) rejects '#line 32768 "configure"' because the line
	number overflows.
	* lib/autoconf/c.m4 (AC_LANG_SOURCE(C)): Do not generate
	#line directives.
	* lib/autoconf/lang.m4 (AC_LANG_SOURCE): Fix comment to match this.
	* doc/autoconf.texi (Generating Sources): Document this.

2003-03-01  Richard Dawe  <rich@phekda.freeserve.co.uk>

	* tests/atspecific.m4 (AT_CHECK_AUTOM4TE): Normalize
	file name for the m4 program, when it has an "exe" file extension.
	DJGPP's error messages include the error code in brackets -
	remove the error code during normalization.

2003-02-28  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Present But Cannot Be Compiled): New.

2003-02-28  Alexandre Duret-Lutz  <adl@gnu.org>

	* doc/autoconf.texi (Limitations of Make): Remove the section
	about `$<' in inference rules, it was a bogus interpretation of
	an old Automake change.  Discuss NetBSD, FreeBSD, OpenBSD, and
	Tru64 make in the "target lookup" section.
	(Automake): Automake 1.5+ no longer requires special tools to be
	present on the developer's host.

2003-02-26  Richard Dawe  <rich@phekda.freeserve.co.uk>

	* bin/autoheader.in (BEGIN): For DJGPP SHELL may not be set
	to a shell that can handle redirection or quoting correctly.
	Override SHELL with the shell detected by configure.
	Use of $^O suggested by Tim van Holder.
	* bin/autom4te.in (BEGIN): Likewise.
	* bin/autoreconf.in (BEGIN): Likewise.
	* bin/autoscan.in (BEGIN): Likewise.
	* bin/autoupdate.in (BEGIN): Likewise.
	* bin/ifnames.in (BEGIN): Likewise.

	* bin/ifnames.in: Add final newline to help and version messages.

	* lib/autoconf/programs.m4 (AC_PROG_MAKE_SET): Translate colons,
	to cope with DOS-style absolute paths, when constructing
	${ac_make}.

	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADERS, _AC_OUTPUT_FILES):
	When constructing paths with IFS=:, quote the path. If we're
	constructing a DOS-style absolute path, we don't want to split it
	on the colon.

	* tests/atspecific.m4 (AT_CHECK_CONFIGURE): Fix typo
	in description.

2003-02-25  Pavel Roskin  <proski@gnu.org>

	* bin/autoheader.in: Add missing newline when printing
	suggestion how change AC_DEFINE call.

2003-02-24  Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Fix typo in
	2002-09-01 patch by replacing "test -n" with "test -z".
	This fixes a bug found by Jeff Painter and reported by Tom Epperly in
	<http://mail.gnu.org/archive/html/autoconf/2003-02/msg00139.html>.

	* doc/autoconf.texi (Shell Substitutions): test -n -> test -z,
	to fix a mismatch between example and discussion.

2003-02-24  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Limitations of Builtins): Add notes on printf
	format starting with "-".

2003-02-20  Alexandre Duret-Lutz  <adl@gnu.org>

	* doc/autoconf.texi (Limitations of Make): `foo=bar make -e'
	is not portable inside Makefile.

2003-02-20  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/headers.m4 (_AC_CHECK_HEADER_MONGREL): When
	compiler says yeah, but preproc says nope, compiler is right.
	Conversely, prompt the reader to send a bug report to the
	maintainers of the package, not of Autoconf.

2003-02-20  Klee Dienes  <kdienes@apple.com>

	* bin/autoreconf.in (autoreconf_current_directory): Properly
	handle an empty aclocal.m4.

2003-02-20  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (AC_PREFIX_PROGRAM): Quote
	$ac_prefix_program.
	From Larry Jones.

2002-12-23  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/c.m4 (AC_LANG_FUNC_LINK_TRY(C)): Define $1 to an
	innocuous variant befor including <limits.h> or <assert.h>.  This
	works around a bug reported by Albert Chin: HP-UX 11i
	(and earlier versions) have a <limits.h> that declares
	gettimeofday and many other functions.

2002-12-03  Paul Eggert  <eggert@twinsun.com>

	Version 2.57.

	* NEWS, configure.ac: Update version.

	* doc/fdl.texi: Upgrade to FDL version 1.2.

	* lib/autoconf/c.m4 (AC_LANG_FUNC_LINK_TRY(C)): Use the function f
	nontrivially in main's body, so that f's external declaration is
	not optimized away in AIX.  This should fix the bug reported by
	Martin Frydl in
	<http://mail.gnu.org/pipermail/autoconf/2002-November/014508.html>.

	* lib/autoconf/c.m4 (AC_LANG_FUNC_LINK_TRY(C),
	_AC_PROG_PREPROC_WORKS_IFELSE): Use <limits.h> if __STDC__ is
	defined, to support freestanding compilers.  This should fix the
	bug reported by Momchil Velkov in
	<http://mail.gnu.org/pipermail/autoconf/2002-November/014490.html>.

	* doc/autoconf.texi (Obsolete Macros): Fix typos (insert empty
	arg, AC_DEFINE -> AC_DEFINE_UNQUOTED) in documentation for
	obsolete AC_CHECK_TYPE.  The missing empty arg was reported
	by Simon Josefsson in
	<http://mail.gnu.org/pipermail/autoconf-patches/2002-December/008830.html>.

	* Makefile.maint (www-gnu): New macro.
	(standards.texi-url_prefix, make-stds.texi-url_prefix): Use it, as
	the location has moved.

2002-12-02  Martin Frydl  <martin@systinet.com>

	* bin/autom4te.in (at_flatten): rewritten to avoid M4 problem when
	\(.*\) match is too long and there is something more to be checked.
	<http://mail.gnu.org/pipermail/autoconf/2002-November/014524.html>

2002-11-15  Akim Demaille  <akim@epita.fr>

	Version 2.56.

	* config/install-sh: chmod +x.
	From Paul Eggert.
	* config/move-if-change: Indenting changes.
	* Makefile.am (AUTOMAKE_OPTIONS): Move to...
	* configure.ac (AM_INIT_AUTOMAKE): here.
	Require 1.7.1.

2002-11-14  Akim Demaille  <akim@epita.fr>

	Version 2.55.

	* config/config.guess, config/config.sub, config/install-sh:
	Update from masters.

2002-11-14  Akim Demaille  <akim@epita.fr>

	* Makefile.maint: Sync with Bison, i.e.:
	(po-check): Scan .l and .y files instead of the
	.c and the .h files that they generate.  This fixes the bug
	reported by Tim Van Holder in:
	<http://mail.gnu.org/pipermail/bison-patches/2002-November/001352.html>
	Look for N_ as well as for _.  Try to avoid matching #define for
	N_ and _.
	From Paul Eggert.

2002-11-14  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (C Compiler): Compiling several files at once.
	From Paul Eggert and Albert Chin-A-Young.

2002-11-14  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (C Compiler): Solitary backslashes.
	From Paul Eggert and Albert Chin-A-Young.

2002-11-14  Kevin Ryde  <user42@zip.com.au>

	* lib/autoconf/c.m4 (AC_LANG_FUNC_LINK_TRY(C)): Initialize f=$1 rather
	than assigning in main, to avoid HP cc +O3 optimizing it away.

2002-11-12  Peter Eisentraut  <peter_e@gmx.net>

	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Add -q
	option.  Process --recheck after parsing all options.  Pass -q
	option to configure on --recheck.
	(AC_OUTPUT): Pass -q from configure to config.status.
	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Strip -q from
	arguments to record.
	* doc/autoconf.texi (config.status Invocation): Document
	config.status -q option.

2002-11-07  Alexandre Duret-Lutz  <adl@gnu.org>

	* bin/autoscan.in (scan_file): Scan Makefile.am too. Ignore
	Makefile.in if Makefile.am exists.
	(output): Strip `.am' from Makefiles.  Don't
	output AC_CONFIG_FILES if no Makefiles were found.

2002-11-07  Akim Demaille  <akim@epita.fr>

	* Makefile.am (cvs_files): Add elisp-comp, mdate-sh.
	(local_updates): New.
	* Makefile.maint: Update, from CVS Bison.
	(local_updates): New.

2002-11-06  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/c.m4 (AC_LANG_FUNC_LINK_TRY): Wrap the `f'
	declaration in extern "C" too.
	Reported by Roberto Bagnara.

2002-11-06  Akim Demaille  <akim@epita.fr>

	* tests/torture.at (Configuring subdirectories): Don't use grep
	-w.
	* doc/autoconf.texi (Limitations of Usual Tools): Grep -w.
	Reported by Ezra Peisach.

2002-11-05  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autoheader.m4 (_AH_TEMPLATE_OLD, _AH_VERBATIM_OLD):
	Remove.
	We _have_ to stop using the old compatibility scheme that tried to
	avoid useless backslashes because Libtool 1.4.3 contains a
	AC_DEFINE([error_t], [int],
	[Define to a type to use for \`error_t' if it is not
	otherwise available.])
	We _have_ to quote the single quote and backslashes with \.  The
	old compatibility scheme saw that ` was backslashed, and therefore
	did not quote the single quote.  Hence before this patch, Autoconf
	was not compatible with Libtool.

2002-11-04  Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Set the following variables,
	too: LC_ADDRESS, LC_IDENTIFICATION, LC_MEASUREMENT, LC_MONETARY,
	LC_NAME, LC_PAPER, LC_TELEPHONE.
	* doc/autoconf.texi (Special Shell Variables): Mention those vars.

2002-11-04  Akim Demaille  <akim@epita.fr>

	Version 2.54c.

	* Makefile.maint (update, cvs-update, po-update, do-po-update):
	New.
	* config/texinfo.tex: Update.

2002-11-03  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (&autoreconf_current_directory): New, extracted
	from...
	(&autoreconf): here.
	($help, $make, &parse_args, &autoreconf_current_directory):
	Support -m/--make.
	* doc/autoconf.texi (autoreconf Invocation): Adjust.

2002-10-31  Bruno Haible  <bruno@clisp.org>

	* lib/autoconf/functions.m4 (_AC_FUNC_MALLOC_IF): Change message.
	Change name of cache variable to ac_cv_func_malloc_0_nonnull.
	(AC_FUNC_MALLOC): Change description of HAVE_MALLOC macro.
	(_AC_FUNC_REALLOC_IF): Change message. Change name of cache variable
	to ac_cv_func_realloc_0_nonnull.
	(AC_FUNC_REALLOC): Change description of HAVE_REALLOC macro.

2002-10-31  Akim Demaille  <akim@epita.fr>

	The test suite was no longer checking for trailing envvars and files.

	* tests/atspecific.m4 (AC_STATE_SAVE): Don't use quadrigraphs here.
	(AT_CHECK_ENV): Make sure the `state-ls.before file exists.

2002-10-31  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/programs.m4 (AC_PROG_MAKE_SET): Use and display
	`$(MAKE)' instead of '${MAKE}' to emphasize that we refer to the
	Make variable, not a shell variable.
	Suggested by Bruno Haible.

2002-10-31  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (load_configuration): Reject #args out of any
	language.

2002-10-31  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_MSG_LOG_CONFTEST): New.
	(_AC_PREPROC_IFELSE, _AC_COMPILE_IFELSE, _AC_LINK_IFELSE)
	(_AC_RUN_IFELSE): Use it.
	* lib/autoconf/lang.m4 (_AC_COMPILER_OBJEXT):
	(_AC_COMPILER_EXEEXT_DEFAULT): Likewise.
	* lib/autoconf/c.m4 (AC_LANG_SOURCE): Don't include confdefs.h,
	inline it.

2002-10-30  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&parse_args, $help): Support --no-cache.
	* doc/autoconf.texi (autom4te Invocation): Adjust.
	Suggested by Tim van Holder.

2002-10-29  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Particular Functions): AC_FUNC_MALLOC and
	AC_FUNC_REALLOC check for compatibility with glibc, not POSIX.
	Problem reported by Bruno Haible.

2002-10-29  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Header Templates): Put also in words what the
	pictures says to assist free style readers.
	(Customizing autom4te): s/--cache=/--cache /.

2002-10-29  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (_AC_FUNC_VFORK): Include stdlib.h and
	sys/wait.h.
	sparc_address_test returns void.
	Use it with an argument, as prototyped.
	From Bruno Haible.

2002-10-29  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Subdirectories): Cygnus dirs have
	configure.in, not configure.ac.
	Reported by Bruno Haible.

2002-10-29  Akim Demaille  <akim@epita.fr>

	* tests/torture.at (Deep Package): New test.
	(Configuring subdirectories): Don't use a testSubDir as Autotest
	now does it itself.

2002-10-29  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (&parse_args, $help): Support --warnings.
	* doc/autoconf.texi (Invoking autom4te): Rename as...
	(autom4te Invocation): this, for consistency with the other nodes.

2002-10-29  Akim Demaille  <akim@epita.fr>

	* lib/autom4te.in (Autoconf): s/automate/autom4te/.
	Reported by Ralf Corsepius.

2002-10-29  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (_AS_QUOTE): The warning about quoted
	characters is a back as an `obsolete' warning now.
	Reported by Ralf Corsepius.

2002-10-28  Akim Demaille  <akim@epita.fr>

	* configure.ac: Bump to 2.54c.

2002-10-28  Akim Demaille  <akim@epita.fr>

	Version 2.54b.

	* tests/foreign.at (Libtool): Adjust to broken libtoolize.

2002-10-28  Akim Demaille  <akim@epita.fr>

	* tests/atspecific.m4 (AT_CHECK_AUTOM4TE): Be robust to different
	m4 executable names, and different GNU M4 version.
	Reported by Ezra Peisach and Paul Jarc.

2002-10-27  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (_AC_FUNC_VFORK): Really use
	AC_RUN_IFELSE.

2002-10-27  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: More AC_MSG_FAILURE promotion.
	* lib/autoconf/fortran.m4 (_AC_F77_NAME_MANGLING):
	Die when a simple Fortran program cannot be compiled.
	* lib/autoconf/lang.m4 (AC_LANG_CALL, AC_LANG_FUNC_LINK_TRY):
	Issue a warning if no function is given.

2002-10-27  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Run Time): Document AC_RUN_IFELSE.
	Move the documentation of AC_TRY_RUN to...
	(Obsolete Macros): here.
	Adjust all the old samples still using AC_TRY_RUN to AC_RUN_IFELSE.
	(autoconf Invocation): Remove the duplicates with `invoking
	autom4te'.
	* lib/autoconf/headers.m4 (AC_HEADER_STDC): Don't use AC_TRY_RUN.
	* lib/autoconf/c.m4 (AC_C_BIGENDIAN): Likewise.

2002-10-27  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Generating Sources): Document AC_LANG_CALL
	and AC_LANG_FUNC_LINK_TRY.
	(Examining Libraries): Rename as...
	(Running the Linker): this.
	Document AC_LINK_IFELSE.
	Move the documentation of AC_TRY_LINK and AC_TRY_LINK_FUNC to...
	(Obsolete Macros): here.
	* lib/autoconf/fortran.m4 (_AC_F77_NAME_MANGLING): Don't use
	AC_TRY_LINK_FUNC nor AC_TRY_LINK.
	* lib/autoconf/libs.m4 (AC_CHECK_LIB, AC_PATH_XTRA): Likewise.
	* lib/autoconf/headers.m4 (AC_USG): Likewise.

2002-10-27  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/headers.m4 (AC_HEADER_STDC): Don't use AC_TRY_CPP.

	More `check config.log' messages.

	* lib/autoconf/general.m4 (AC_MSG_FAILURE): New.
	* doc/autoconf.texi (Printing Messages): Document it.
	* lib/autoconf/types.m4 (AC_CHECK_SIZEOF): Use it when
	appropriate.
	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT)
	(_AC_COMPILER_EXEEXT_WORKS, _AC_COMPILER_EXEEXT_O)
	(_AC_COMPILER_OBJEXT): Likewise.
	* lib/autoconf/general.m4 (AC_RUN_IFELSE): Likewise.
	* lib/autoconf/fortran.m4 (_AC_LANG_PROGRAM_C_F77_HOOKS):
	Likewise.
	* lib/autoconf/c.m4 (AC_PROG_CPP, AC_PROG_CC, AC_PROG_CXXCPP):
	Likewise.

	Deprecate macros with unusual interfaces.

	* lib/autoconf/general.m4 (AC_TRY_CPP, AC_TRY_LINK)
	(AC_TRY_COMPILE, AC_TRY_RUN): AU_DEFUN'ed.

	Document the new ones, and proper style.

	* doc/autoconf.texi (Generating Sources): New.
	Document AC_LANG_CONFTEST, AC_LANG_SOURCE, AC_LANG_PROGRAM.
	(Examining Declarations): Rename as...
	(Running the Preprocessor): this.
	Document AC_PREPROC_IFELSE.
	(Examining Syntax): Rename as...
	(Running the Compiler): this.
	(AC_FOO_IFELSE vs AC_TRY_FOO): New section.
	(Obsolete Macros): Move the definition of AC_TRY_CPP and
	AC_TRY_COMPILE here.

2002-10-27  Akim Demaille  <akim@epita.fr>

	Move sections around.

	* doc/autoconf.texi (Customizing autom4te): Remove a lost
	sentence.
	Reported by Burno Haible.
	(Language Choice): Now the first section of...
	(Writing Tests): this section.
	Make the introduction less C-centric.
	(Guidelines, Test Functions): Move to...
	(Writing Test Programs): this new section.
	(Test Programs): Merge into...
	(Run Time): this.

2002-10-27  Akim Demaille  <akim@epita.fr>

	* lib/freeze.mk ($(AUTOM4TE_CFG)): Add a missing dependency on
	autom4te.in that resulted in the need for two `make' runs.

2002-10-27  Akim Demaille  <akim@epita.fr>

	* configure.ac: Bump to 2.54b.

2002-10-25  Akim Demaille  <akim@epita.fr>

	Version 2.54a.

	* Makefile.maint: Update from the Coreutils.
	(AMTAR): Remove, obsolete.
	(automake_repo): Update to redhat.com.
	(cvs_file): New.
	Adjust to the fact that ansi2knr is now hosted by Automake.
	* Makefile.am (cvs_files): Add install-sh and mkinstalldirs.
	* config/config.guess, config/mkinstalldirs, config/texinfo.tex:
	Update from masters.
	* lib/autoscan/Makefile.am (EXTRA_DIST, nodist_autoscanlib_DATA):
	autoscan.pre is not to be installed, and autoscan.list is not to
	be shipped.
	(CLEANFILES): Add autoscan.list.
	(autoscan.list): Disable the cache.
	* bin/Makefile.am: Include freeze.mk.

2002-10-25  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&load_configuration): Take the file as
	argument.
	(&parse_args): Handle -C, --cache.
	($help): Adjust.
	(MAIN): Load ~/.autom4te.cfg and ./.autom4te.cfg.
	* lib/autom4te.in (Autoconf): Pass --cache=autom4te.cache.
	* doc/autoconf.texi (Invoking autom4te): Document --cache.
	Now a subsection of...
	(Using autom4te): This new section.
	(Customizing autom4te): New.
	(autom4te.cache): Adjust.

2002-10-25  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Generic Headers): More information on how to
	use AC_CHECK_HEADERS.

2002-10-25  Akim Demaille  <akim@epita.fr>

	* bin/autoconf.as, bin/autoconf.in, bin/autoupdate.in ($help):
	Space changes.

2002-10-25  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (output): Output AC_PREREQ.
	(%needed_macros): Add AC_PREREQ so that configure.ac without one
	be reported.

2002-10-23  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Particular Headers): In AC_HEADER_STDBOOL,
	document _Bool.

2002-10-23  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (handle_traces): Handle @&t@ in traces.
	Reported by Peter Eisentraut.

2002-10-23  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/headers.m4 (AC_HEADER_STDBOOL): Also look for the
	type _Bool.
	Fix a typo.
	* doc/autoconf.texi (Particular Headers): Adjust according to Paul
	Eggert's recommandations.

2002-10-22  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/headers.m4 (AC_HEADER_STDBOOL): New, based on CVS
	Bison, by Paul Eggert.
	* doc/autoconf.texi (Particular Headers): Document it.

2002-10-22  Aaron M. Ucko  <amu@alum.mit.edu>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Avoid duplicates in
	`$ac_configure_args'.

2002-10-22  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: Use AC_CONFIG_HEADERS in examples.
	(AC_ST_BLKSIZE, AC_ST_RDEV): Directly point to AC_CHECK_MEMBERS.
	From Art Haas.

2002-10-22  Akim Demaille  <akim@epita.fr>

	Restore the 2002-10-11  Akim Demaille  <akim@epita.fr> patch:

	* lib/autoconf/headers.m4 (_AC_CHECK_HEADER_MONGREL)
	(AC_CHECK_HEADER, _AC_CHECK_HEADER_NEW,_AC_CHECK_HEADER_OLD): Restore.
	(_AC_CHECK_HEADER_NEW): Rename as...
	(AC_CHECK_HEADER): this.

2002-10-22  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Limitations of Usual Tools): Remove incorrect
	words about HP-UX cmp: it was actually a user-written cmp.

2002-10-22  Akim Demaille  <akim@epita.fr>

	* tests/foreign.at (Libtool): Don't check autoconf's stderr: there
	are a few warnings.
	* lib/autoconf/autoheader.m4 (AH_VERBATIM, _AH_VERBATIM_OLD):
	Quote for Perl '' strings, not "".
	* bin/autoheader.in: Invoke autoconf to get '' strings, not ""
	strings.

2002-10-22  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (_AS_QUOTE): The warning about quoted
	characters is a syntax warning now.
	(_AS_QUOTE): Accept $2 as list of characters to quote.
	* lib/autoconf/autoheader.m4 (AH_VERBATIM, _AH_VERBATIM_OLD):
	Quote for Perl, not sh.
	* bin/autoheader.in: When $debug, report the file which is
	`do'ne.
	* tests/tools.at (autom4te, autoheader): Exercise @bar, not merely
	`@', to tickle Perl's lists.
	Reported by Carlos Velasco.

2002-10-18  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (handle_m4): Pass --fatal-warning to m4, so that
	missing included files _are_ errors.
	Thanks to Alexandre Duret-Lutz.
	* tests/tools.at (autom4te cache): Adjust.
	* tests/atspecific.m4 (AT_CHECK_AUTOM4TE): New.
	(AT_CHECK_M4SUGAR): Use it.
	* tests/m4sugar.at (m4_warn, m4_require: circular dependencies):
	Adjust.
	* tests/tools.at (autom4te): Now it does exit 1.

2002-10-17  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (AC_CACHE_SAVE): Don't use cmp.
	Fixes the `AC_ARG_VAR' test failures.
	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES): Don't use cmp.
	* lib/freeze.mk (check-forbidden-patterns): New.
	* lib/autoconf/Makefile.am, lib/autotest/Makefile.am
	* lib/m4sugar/Makefile.am (check-local): Use it to catch `cmp'.
	* doc/autoconf.texi (Limitations of Usual Tools): HP-UX' cmp and
	/dev/null.
	Reported months ago by H. Merijn Brand.

2002-10-17  Akim Demaille  <akim@epita.fr>

	* tests/tools.at (autoheader): Put randoms `@' to stress Perl.

2002-10-16  Paul Eggert  <eggert@twinsun.com>

	* Makefile.maint (wget_files): Remove ansi2knr.c.
	(ansi2knr.c-url_prefix): Remove.

2002-10-16  Akim Demaille  <akim@epita.fr>

	Because of caching, some files that no longer exist and are no
	longer required can still cause errors.
	Reported by Alexandre Duret-Lutz.

	* bin/autom4te.in (&parse_args): Do not prepend `--reload-state'
	to frozen files in @ARGV, as @ARGV must remain being a list of
	files.  Rather, at M4 call sites, use this...
	(&files_to_options): New function.
	(&freeze): Use &error.
	(&up_to_date): If a file that was included according to the cache
	is no longer there, then the output is out dated.
	(&main): Don't even check whether a file is up to date is anyway
	--force is given.
	* tests/tools.at (autom4te cache): New.

2002-10-16  Akim Demaille  <akim@epita.fr>

	* bin/autoconf.as: Kill dead options.
	* bin/autoupdate.in (&parse_args): Kill old options.
	* bin/autoreconf.in (&parse_args): Remove dead options.
	Factor some code.
	(&autoreconf): Report the directories we enter *and leave*, so
	that error messages can be easily located, and use GNU Make
	format, so that Emacs' compile mode understands us.
	* lib/Autom4te/General.pm (&update_file): Use `verbose' to report
	if some file was changed instead of `print'.
	* bin/autoheader.in: Suggest AC_DEFINE with 3 args when needed.
	(&parse_args): Remove the dead options.
	* tests/atspecific.m4 (AT_CHECK_AUTOHEADER): Adjust to the new
	autoheader's quiet mode.
	(AT_CHECK_AUTOUPDATE): Likewise.
	* tests/tools.at (autoupdate): Adjust.
	* tests/semantics.at (AC_C_BIGENDIAN): Likewise.

2002-10-11  Akim Demaille  <akim@epita.fr>

	No longer use CPP to check for the existing of headers: use CC to
	check for compilability.

	* lib/autoconf/headers.m4 (_AC_CHECK_HEADER_MONGREL)
	(AC_CHECK_HEADER, _AC_CHECK_HEADER_OLD): Remove.
	(_AC_CHECK_HEADER_NEW): Rename as...
	(AC_CHECK_HEADER): this.

	* lib/autotest/general.m4 (AT_INIT): Include the failed test
	numbers in the Subject suggestion.

2002-10-11  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/specific.m4 (AC_DECL_SYS_SIGLIST): Obsolete.
	Suggest using AC_CHECK_DECLS instead.

2002-10-11  Akim Demaille  <akim@epita.fr>

	* tests/torture.at (AC_ARG_VAR): Have configure report the value
	of `precious'.

2002-10-11  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (_AS_PATH_SEPARATOR_PREPARE): Use $$ in the
	file name to enable parallel executions.
	From Sam Varshavchik.

2002-10-08  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (&autoreconf): Run autopoint before the first
	aclocal invocation, as Gettext macros might not be visible to
	aclocal.
	Instead of blindly running autopoint, scan configure.ac (not the
	traces) for AM_GNU_GETTEXT_VERSION uses, as autopoint does.
	Reported by Paul D. Smith.

2002-10-08  Paul Eggert  <eggert@twinsun.com>

	Work around problems found when POSIXLY_CORRECT=1 is set.
	None of this seems to have anything to do with POSIX, really,
	but it's how Perl getopt works.
	* bin/autom4te.in (parse_args): Configure GetOpt with
	"permute", too.
	* doc/autoconf.texi (Invoking autom4te):
	--warning -> --warnings.
	* lib/autom4te.in: --warning -> --warnings.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (autom4te.cache): New section.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* lib/autom4te.in (Autoscan-preselections, Autoreconf-preselections)
	(Automake-preselections): Update.
	* bin/autoreconf.in, bin/autoheader.in: Comment changes.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* lib/autoscan/autoscan.pre: Move all the remaining rules to...
	* lib/autoconf/c.m4, lib/autoconf/functions.m4,
	* lib/autoconf/headers.m4, lib/autoconf/libs.m4,
	* lib/autoconf/specific.m4, lib/autoconf/types.m4: here.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* tests/torture.at (Configuring subdirectories): Be robust to
	users who use config.site to require for a cache: in this case,
	the two last configure runs, using two different sets of
	arguments, trigger a legitimate error.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* tests/m4sh.at (Functions Support, Functions and return Support):
	New.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* bin/Makefile.am (ETAGS_SH, ETAGS_PERL): Update: ifnames and
	autoheader are Perl programs.
	(autoconf, autoheader, autoreconf, autoupdate, ifnames, autoscan)
	(autom4te): Specify that the sources are in the $srcdir.
	* doc/autoconf.texi (Installation Directory Variables): Adjust.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* lib/autoscan/autoscan.pre (st_blksize, st_blocks, st_rdev)
	(tm_zone): Move their rules to...
	* lib/autoconf/types.m4: here, using AN_ macros.
	* lib/autoscan/autoscan.pre (AWK, BISON, INSTALL, LEX, LN, MAKE)
	(RANLIB, YACC, awk, bison, byacc, flex, gawk, install, lex, ln)
	(make, mawk, nawk, ranlib, yacc): Similarly, move to...
	* lib/autoconf/programs.m4: here.
	* lib/freeze.mk (ETAGS_FOR_M4, ETAGS_FOR_M4SUGAR)
	(ETAGS_FOR_AUTOCONF): New.
	Use it.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autoscan.m4: New file.
	* lib/autoconf/autoconf.m4: Include it.
	* lib/autoconf/functions.m4: Use AN_FUNCTION for all the functions
	that were listed in the original autoscan.list.
	* lib/autoconf/headers.m4: Similarly with headers.
	* lib/freeze.mk (autoconf_m4f_dependencies): Add autoscan.m4.
	(.m4.m4f): Don't pass --prepend-include, since that's done by
	tests/autom4te itself.
	* lib/autoscan/Makefile.am: Include freeze.mk.
	(autoscan.list): New target --this file is no longer a source.
	(autoscan.pre): New file.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (@kinds): Make them singular.
	Adjust all uses.
	(&init_tables): When --debug, report the list of rules to ease
	tracking changes in autoscan.list.
	* lib/autoscan/autoscan.list (function): Strip comments, sort.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* lib/autoscan/functions, lib/autoscan/headers,
	* lib/autoscan/identifiers, lib/autoscan/makevars,
	* lib/autoscan/programs: Merge into...
	* lib/autoscan/autoscan.list: this.
	* bin/autoscan.in (&init_tables): Adjust.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* lib/autoscan/functions, lib/autoscan/headers,
	* lib/autoscan/identifiers, lib/autoscan/makevars,
	* lib/autoscan/programs: Make the `kind' explicit, i.e., each
	`functions' line is now prefixed with `function:'.
	* bin/autoscan.in (&init_tables): Adjust.

2002-09-28  Akim Demaille  <akim@epita.fr>

	From now on, autoscan files must always map a macro name to a
	word: there is no `default' macro for autoscan.

	* bin/autoscan.in (&init_tables): Reject entries with no macro at
	all.
	* lib/autoscan/functions, lib/autoscan/headers: Make the macro
	explicit.

2002-09-28  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (%c_keywords): Remove.
	(&used): Keep only track of the words we might be interested in.
	(&output_kind): It is no longer needed to look for non active
	checks.

2002-09-27  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (AC_FUNC_MBRTOWC): New, stolen from
	jm_FUNC_MBRTOWC, by Paul Eggert, from the Coreutils 4.5.1.
	* lib/autoscan/functions: Adjust.
	* doc/autoconf.texi (Particular Functions): Adjust.

2002-09-27  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Limitations of Usual Tools): Some about mv
	from /tmp.
	Thanks to Bill Moseley and Paul Eggert.
	* lib/m4sugar/m4sh.m4 (AS_TMPDIR): $2 is the directory into which
	the tmpdir must be created.
	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Have the tmp
	dir be in the build tree, instead of $TMPDIR.

2002-09-27  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in: Improve the comments.
	(&parse_args): Drop obsolete undocumented options.
	(&output_kind): Output warnings.
	* lib/autoscan/functions: (dcgettext): Now trigger AM_GNU_GETTEXT.
	(getwd): Trigger a warning.

2002-09-26  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in: Clarify that -s is meaningless without -i.
	Reported by Ralf Corsepius.
	* doc/autoconf.texi (autoreconf Invocation): Likewise.

2002-09-26  Akim Demaille  <akim@epita.fr>

	Single suffix rules and seperated dependencies are not portable.

	* doc/autoconf.texi (Installation Directory Variables): Update.
	(Limitations of Make): Some about `Single Suffix Rules and
	Separated Dependencies'.
	* bin/Makefile.am (autoconf, autoheader, autoreconf, autoupdate)
	(ifnames, autoscan, autom4te): Un-factor into several rules.

2002-09-25  Paul Eggert  <eggert@twinsun.com>

	* BUGS (Interoperability bugs): New section.  Mention libtool
	1.4.2, configure.ac, and AC_CONFIG_AUX_DIR interoperability bug.

2002-09-24  Paul Eggert  <eggert@twinsun.com>

	Fix a portability bug reported by Alexandre Duret-Lutz: Solaris 8
	make handles suffix-rules differently from GNU make.

	* bin/Makefile.am (SUFFIXES, .in): Remove.
	(autoconf autoheader autoreconf autoupdate ifnames autoscan autom4te):
	Move the body of the old .in rule here.

2002-09-16  Akim Demaille  <akim@epita.fr>

	i960 compilers create `b.out' files by default.
	Reported by Ralf Corsepius.

	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT): Remove b.out files.
	(_AC_COMPILER_EXEEXT_DEFAULT): Adjust to b.out.

2002-09-13  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Particular Headers): Remove obsolete
	reference to `struct timezone' in the description of
	AC_HEADER_TIME.

2002-09-13  Akim Demaille  <akim@epita.fr>

	Version 2.54.

	* config/config.sub, config/config.guess: Update.
	* Makefile.maint: Update from bits of the Coreutils 4.5.1.
	* Makefile.am: Adjust.

2002-09-13  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Suggest
	reading config.log when the compiler is rejected.
	Suggested by Guido Draheim.

2002-09-13  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in: Don't use Cwd::chdir, since in its internals
	(chdir_init) might hang when stat'ing mounted directories.
	Reported by Vance Shipley.

2002-09-12  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (&parse_args): Pass a reference to the lists, not
	the lists.

2002-09-12  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Defining Symbols): Present two different
	prototypes for AC_DEFINE and AC_DEFINE_UNQUOTED to emphasize the
	difference between 1 argument calls, and 2-3 argument calls.

2002-09-12  Peter Eisentraut  <peter_e@gmx.net>

	* doc/autoconf.texi: Review grammar and punctuation.

2002-09-11  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi: Fix minor formatting, spelling, and
	grammatical typos.
	(Defining Symbols): Explain that AC_DEFINE(var) defaults to 1, but
	AC_DEFINE(var,,description) does not; and the AC_DEFINE(var) case
	is obsolescent.

2002-09-11  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Questions): Rename as...
	(FAQ): this.
	(Defining Directories): New.

2002-09-09  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Making testsuite Scripts): Update.
	Suggested by Nishio Futoshi.

2002-09-09  Koji Arai  <JCA02266@nifty.ne.jp>

	* doc/autoconf.texi (Making testsuite Scripts): Use `@@' where a
	plain `@' is wanted.

2002-09-09  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Keep the
	`duplicates', since the algorithm was too naive and could keep
	`--prefix=1 --prefix=2 --prefix=1' as `--prefix=1 --prefix=2', and
	keep `--prefix foo --prefix bar' as `--prefix foo bar'.
	Reported by Ralf Corsepius.
	* tests/torture.at (Configuring subdirectories): Exercise these
	cases.

2002-09-09  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (AC_FUNC_GETLOADAVG): Use $srcdir when
	looking for a replacement file.
	* lib/autoconf/general.m4 (AC_CHECK_DECLS): Check that the
	directory is relative.
	* doc/autoconf.texi (Generic Functions): Clarify the replacement
	directory definition.
	Reported by Andreas Schwab and Jim Meyering.

2002-09-06  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Setting Output Variables): Clarify what
	precious variables are.
	Suggested by Pontus Skoeld.

2002-09-05  Akim Demaille  <akim@epita.fr>

	* bin/Makefile.am (autoconf, autoheader, autoreconf, autoupdate)
	(ifnames, autoscan, autom4te): Since we don't only depend on
	configure.ac variables (such as VERSION etc.), but also on prefix
	and so forth, depend on Makefile, not configure.ac.
	Reported by Alexandre Duret-Lutz.
	* doc/autoconf.texi (Installation Directory Variables): Adjust.

2002-09-05  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Limitations of Make): HP-UX trailing backslashes
	doesn't seem to be confined to ia64, just say "some versions".

2002-09-04  Akim Demaille  <akim@epita.fr>

	* Makefile.am, doc/Makefile.am: Remove pdf targets, handled by
	Automake 1.6c.
	* Makefile.am (maintainer-clean-local): Remove.
	(MAINTAINERCLEANFILES): Remove COPYING.

2002-09-03  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Configuration Commands): Remove obsolete
	example for AC_CONFIG_COMMANDS_PRE.  Problem reported by Marcus
	Brinkmann.

2002-09-03  Akim Demaille  <akim@epita.fr>

	* configure.ac: Bump to 2.53d.
	* Makefile.am (AUTOMAKE_OPTIONS): Require 1.6c, i.e., CVS Automake
	as of today, on Automake's team suggestion.

2002-09-03  Akim Demaille  <akim@epita.fr>

	Version 2.53c.

2002-09-02  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (parse_args): Don't honor AUTOM4TE_PATH and
	SITE_MACRO_DIR.
	* configure.ac: Disable SITE_MACRO_DIR.

2002-09-02  Jim Meyering  <meyering@lucent.com>

	* doc/autoconf.texi (AC_SYS_POSIX_TERMIOS): Reflect renaming: s/am/ac/,
	i.e., change am_cv_sys_posix_termios to ac_cv_sys_posix_termios.
	Also, tweak grammar: s/make sure to/be sure to/.

2002-09-02  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Limitations of Builtins): Explain why logical
	directory names are generally preferable to physical names.

2002-09-02  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (&update_file): s/die/error/.
	Reported by Raja R. Harinath.
	* bin/autoheader.in, bin/autoreconf.in, bin/autoscan.in,
	* bin/autoupdate.in: Use error instead of die.

2002-09-01  Paul Eggert  <eggert@twinsun.com>

	* tests/mktests.sh (ac_exclude_egrep, au_exclude_egrep): Use
	ordinary shell concatenation rather than echo+tr+sed command that
	runs afoul of a long-line-related sed bug in Solaris 8.

	* bin/autoheader.in (parse_args): --warning -> --warnings.

	* bin/autoconf.as: Work even if "ls" outputs "FOO not found" to
	stdout, as traditional "ls" does.
	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT,
	_AC_COMPILER_EXEEXT_O): Likewise.
	* doc/autoconf.texi (Limitations of Usual Tools): Add "ls".

	* bin/autoconf.as: Add --prepend-include option.  This patch was
	applied to bin/autoconf.in in the 2002-07-17 patch by Mark D. Roth,
	but bin/autoconf.in is generated automatically from bin/autoconf.as.

	* bin/autoconf.in, configure: Regenerate.

	* doc/autoconf.texi (Special Shell Variables): Mention
	ENV, MAIL, MAILPATH, PS1, PS2, PS4.  Index PWD.

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Unset ENV, MAIL,
	MAILPATH and set PS1, PS2, PS4 to default values, to work
	around bug in pre-3.0 UWIN ksh reported by Bruce Lilly.
	For LC_ALL etc, first try to set to "C" as POSIX requires and as
	the Autoconf documentation specifies; fall back to "unset" only if
	this fails.  Use a shell for-loop for this rather than an m4 loop,
	to shorten the output script.

2002-08-30  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Special Shell Variables): Mention POSIX
	1003.1-2001's requirements for CDPATH.  Give a simpler workaround
	for the CDPATH problem.  Document PWD.
	(Limitations of Builtins): Document the problem that "cd $foo" and
	"ls $foo" may refer to different directories in shells conforming
	to POSIX 1003.1-2001.  Use PS1 rather than CDPATH for "unset"
	example, since the old example is now out of date.

	* lib/autoconf/general.m4 (_AC_INIT_SRCDIR): Reject FOO if "cd
	FOO" and "ls FOO" talk about different directories; this catches
	problems when POSIX 1003.1-2001 "cd" fails due to symlink
	spaghetti.

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Use AS_UNSET instead
	of rolling our own unset.
	(_AS_PREPARE): $as_unset CDPATH instead of AS_UNSETting it, since
	in practice we needn't worry about CDPATH if unset doesn't work.

	* Makefile.in, aclocal.m4, bin/Makefile.in,
	config/Makefile.in, doc/Makefile.in, lib/Makefile.in,
	lib/Autom4te/Makefile.in, lib/autoconf/Makefile.in,
	lib/autoscan/Makefile.in, lib/autotest/Makefile.in,
	lib/emacs/Makefile.in, lib/m4sugar/Makefile.in, man/Makefile.in,
	tests/Makefile.in: Regenerate with Automake 1.6.3.

	* config/config.guess, config/config.sub, config/mkinstalldirs:
	Update.

	* configure: Regenerate with self.

2002-08-30  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Limitations of Usual Tools): Notes on "cc"
	default output.

2002-08-29  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* bin/autom4te.in (Request::load): Correctly test for "do" read
	failure.

2002-08-29  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (&xqx): New.
	(&xsystem): Use WIFEXITED and WEXITSTATUS instead of decoding $? by
	hand, which is not portable.
	(&error): New.
	* bin/autom4te.in: Use them.
	Use &error instead of die.
	* tests/m4sugar.at (m4_warn, m4_require: circular dependencies):
	Adjust.

2002-08-17  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/fortran.m4 (AC_PROG_F77): Remove fc from the
	default list of compilers to try, since it was long ago superseded
	by the ksh fc builtin.  Suggested by Steven G. Johnson.

2002-07-31  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* doc/autoconf.texi (Invoking autom4te): End the option table,
	fixing a bug introduced by the previous patch.
	(Limitations of Make): Add a 'target lookup' subentry in the
	'VPATH' entry.  Rewrite all `make' occurences as `@command{make}'.

2002-07-29  Mark D. Roth  <roth@feep.net>

	* bin/autom4te.in: Remove --include-envvar and --site-macro-subdir
	options and use $AUTOM4TE_PATH.
	* doc/autoconf.texi: Remove documentation of autom4te
	--include-envvar and --site-macro-subdir options and document
	use of $AUTOM4TE_PATH.
	* lib/autom4te.in: Remove --include-envvar and --site-macro-subdir
	arguments from each language section.

2002-07-29  Paul Eggert  <eggert@twinsun.com>

	* doc/install.texi: Include copyright symbol in copyright notice.

	* Makefile.am (MAKEINFO): Remove; it's a user-specified macro.
	Replace with:
	(AM_MAKEINFOFLAGS): New macro.
	* doc/Makefile.am (MAKEINFO, AM_MAKEINFOFLAGS): Likewise.
	* Makefile.am (INSTALL): Use the new macros.
	Use -o rather than --output, since "missing" does not grok --output.

2002-07-25  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* doc/autoconf.texi (Limitations of Make): Escaped newlines in
	comments do not always work. Never trust the exit status of
	`make -k'.

2002-07-24  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Limitations of Make, Making testsuite Scripts):
	Untabify, since tabs are not enjoyed by texi2dvi and makeinfo.

2002-07-23  Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (_AS_PATH_SEPARATOR_PREPARE):
	Use PATH="/nonexistent;.", not PATH=".;.", as FreeBSD ksh2002
	apparently treats PATH="nonexistent" as if it contained ".".
	Bug reported by Stefan `Sec' Zehl.

2002-07-22  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* doc/autoconf.texi (Limitations of Make): Mention the special
	handling of the obj/ directory by BSD make.

2002-07-20  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Limitations of Make): Add HP-UX IA-64 trailing
	backslashes.

2002-07-19  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Function Portability): `exit'.
	(Programming in M4sh): Ethymology of M4sh.

2002-07-19  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (AC_LIBOBJ vs LIBOBJS): More about $U.

2002-07-18  Akim Demaille  <akim@epita.fr>

	Version 2.53b.

2002-07-18  Akim Demaille  <akim@epita.fr>

	* config/config.guess, config/config.sub: Update.

2002-07-18  Akim Demaille  <akim@epita.fr>

	Handle LIBOBJS and LTLIBOBJS once for all, including Libtool's and
	Automake's parts.

	* lib/autoconf/general.m4 (_AC_LIBOBJS_NORMALIZE): New.
	* lib/autoconf/status.m4 (AC_OUTPUT_COMMANDS_PRE): Call it.
	* tests/semantics.at (AC_REPLACE_FUNCS): Adjust.

2002-07-18  Akim Demaille  <akim@epita.fr>,
	    Alexandre Duret-Lutz  <duret_g@epita.fr>

	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADERS): Install
	_AC_AM_CONFIG_HEADER_HOOK for Automake 1.7.

2002-07-17  Russ Allbery  <rra@stanford.edu>

	* doc/autoconf.texi (Initializing configure): Clarify the
	description of the tarname default.

2002-07-17  Andreas Buening  <andreas.buening@nexgo.de>

	* lib/autoconf/functions.m4 (AC_FUNC_FORK): Don't set
	ac_cv_func_fork_works before running _AC_FUNC_FORK, do it if the
	latter was not run.

2002-07-17  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (find_file): Browse the directories in
	the order they are given.

2002-07-17  Akim Demaille  <akim@epita.fr>

	* tests/wrapsh.as, tests/wrappl.as: Merge into...
	* tests/wrapper.as: this.
	* tests/Makefile.am, configure.ac: Adjust.

2002-07-17  Mark D. Roth  <roth@feep.net>

	* configure.ac: Add --enable-site-macro-dir option.
	* bin/Makefile.am: Expand @SITE_MACRO_DIR@.
	* bin/autom4te.in: Add --prepend-include, --include-envvar, and
	--site-macro-subdir options.
	* bin/autoconf.in: Add --prepend-include option.
	* bin/autoheader.in: Add --prepend-include option.
	* bin/autoreconf.in: Add --prepend-include option.
	* bin/autoscan.in: Add --prepend-include option.
	* bin/autoupdate.in: Add --prepend-include option.
	* doc/autoconf.texi: Document use of $AC_MACRO_PATH and site
	macro directory, remove note that include path directories are
	used in reverse order, and document --prepend-include option.
	* lib/autom4te.in: Use --prepend-include instead of --include.
	* tests/wrapsh.in: Use --prepend-include instead of --include.

2002-07-17  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_PACKAGE): `_' is allowed in
	tarnames.
	* doc/autoconf.texi (Initializing configure): Adjust.

2002-07-17  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (AC_FUNC_REALLOC, _AC_FUNC_REALLOC)
	(_AC_FUNC_MALLOC): New.
	(AC_FUNC_MALLOC): Use the latter.
	Define HAVE_MALLOC to 0 if broken.
	* doc/autoconf.texi (Particular Functions): Adjust.

2002-07-16  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/c.m4 (AC_C_BACKSLASH_A): New.
	* doc/autoconf.texi (C Compiler): Adjust.

2002-07-09  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: Properly set the ``header'' part.

2002-07-09  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Systemology): Some about Darwin.

2002-07-09  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* lib/autoconf/specific.m4 (AC_CYGWIN, AC_EMXOS2, AC_MINGW32):
	Don't use AC_REQUIRE in AU_DEFUN.

2002-07-09  Art Haas  <ahaas@neosoft.com>

	* doc/autoconf.texi: Use @enddots{} or @dots{} where appropriate.

2002-07-02  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* bin/autoheader.in, bin/autom4te.in, bin/autoreconf.in,
	bin/autoupdate.in, bin/ifnames.in, lib/Autom4te/General.pm,
	lib/Autom4te/Struct.pm, lib/Autom4te/XFile.pm: Add local variables
	so that Emacs setups GNU style for perl-mode and cperl-mode.

2002-06-27  Paul Eggert  <eggert@twinsun.com>

	* config/install-sh: Quote $src.  Prefer || to test's -o option,
	as per "Limitations of Builtins".
	* tests/atspecific.m4 (AT_CHECK_ENV): Likewise, for && vs test -a.
	* tests/semantics.at (AC_C_BIGENDIAN): Likewise.

	* tests/mktests.sh: Use grep instead of fgrep, as per
	"Limitations of Builtins".

2002-06-15  Paul Eggert  <eggert@twinsun.com>

	* tests/wrapsh.as (AUTOCONF, AUTOHEADER, AUTOM4TE, AUTOM4TE_CFG,
	autom4te_perllibdir): Set to top build dir or src dir as appropriate,
	so that we consistently test the just-built programs.
	* tests/wrappl.as: Likewise.

2002-06-12  Paul Eggert  <eggert@twinsun.com>

	* bin/autoconf.as (AUTOM4TE): Default to a fully qualified path
	name, so that symlinks to 'autoconf' work properly.  Bug reported
	by Bruno Haible.
	* bin/autoheader.in (AUTOM4TE): Likewise.
	* bin/autoreconf.in (autoconf, autoheader): Likewise.
	* bin/autoscan.in (autom4te): Likewise.
	* bin/autoupdate.in (autom4te): Likewise.

	* lib/autoconf/functions.m4 (_AC_LIBOBJ_FNMATCH): Also check for
	btowc, to fix a portability bug with diffutils-2.8.2/lib/fnmatch.c
	on Solaris 2.5.1.

2002-06-11  Andreas Schwab  <schwab@suse.de>

	* doc/autoconf.texi: Add more dir entries.

2002-06-10  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* bin/autom4te.in ($cache): Don't define using `$me', the name
	of the cache should not depend on the name under which autom4te
	was installed.

2002-06-07  Akim Demaille  <akim@epita.fr>

	* tests/tools.at (autoconf: forbidden tokens, basic)
	(autoconf: forbidden tokens, exceptions): Adjust to the change of
	words in autom4te.in.

2002-06-07  Peter Eisentraut  <peter_e@gmx.net>

	* lib/autoconf/c.m4 (AC_LANG_PROGRAM(C)): Use
	_AC_LANG_PROGRAM_C_F77_HOOKS.

2002-06-07  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (AC_REPLACE_FUNC_FNMATCH): Typo,
	rename as...
	(AC_REPLACE_FNMATCH): this.
	* tests/mktests.sh (exclude_list): Exclude AC_REPLACE_FNMATCH,
	AC_FUNC_FNMATCH_GNU.

2002-06-07  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Systemology): Point to Tru64 docs, and the
	Rosetta Stone for Unix.

2002-06-07  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (warn_forbidden): When rejecting a token,
	suggest m4_pattern_allow.
	Suggested by Adam J. Richter.

2002-06-07  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_DEFAULTS): Initialize
	ac_config_libobj_dir.
	(AC_CONFIG_LIBOBJ_DIR): New.
	* lib/autoconf/functions.m4 (_AC_FUNC_FNMATCH): Split into...
	(_AC_FUNC_FNMATCH_IF, _AC_LIBOBJ_FNMATCH): these.
	Use ac_config_libobj_dir to find the replacement files.
	(AC_FUNC_FNMATCH, AC_FUNC_FNMATCH_GNU): Split into...
	(AC_FUNC_FNMATCH, AC_FUNC_FNMATCH_GNU, AC_REPLACE_FNMATCH)
	(AC_REPLACE_FNMATCH_GNU): these.
	(AC_FUNC_GETLOADAVG): Use ac_config_libobj_dir.
	* doc/autoconf.texi (Particular Functions, Generic Functions): Adjust.
	* tests/mktests.sh (ac_exclude_list): Don't check
	AC_FUNC_GETLOADAVG as it requires getloadavg.c which is not shipped.

2002-06-06  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/status.m4 (_AC_OUTPUT_LINKS): Fall back on cp
	if ln doesn't work.
	* NEWS: Likewise.
	* doc/autoconf.texi (Configuration Links): Likewise.
	(Limitations of Usual Tools): Prefer $(LN_S) to ln -s || ln.

2002-06-05  Paul Eggert  <eggert@twinsun.com>

	* config/config.guess, config/config.sub, config/texinfo.tex:
	Update from masters.

2002-05-29  Paul Eggert  <eggert@twinsun.com>

	* bin/autom4te.in ($m4): Do not assume that egrep and fgrep exist.
	* lib/autoconf/c.m4 (AC_C_BIGENDIAN): Likewise.
	* lib/autoconf/general.m4 (_AC_RUN_LOG_STDERR, AC_EGREP_CPP):
	Likewise.
	* lib/autoconf/Makefile.am (check-local): Likewise.
	* lib/autoconf/status.m4 (AC_CONFIG_HEADER): Likewise.
	* lib/autoconf/types.m4 (commentary only): Likewise.
	* lib/autotest/general.m4 (AT_INIT, AT_CHECK): Likewise.
	* lib/autotest/Makefile.am (check-local): Likewise.
	* lib/m4sugar/Makefile.am (check-local): Likewise.
	* tests/atspecific.m4 (AT_CONFIGURE_AC, AT_CHECK_DEFINES): Likewise.
	* tests/mktests.sh (egrep): New var; use it instead of plain egrep.

	* lib/autoconf/programs.m4 (AC_PROG_EGREP, AC_PROG_FGREP): New macros.
	* doc/autoconf.texi (Particular Programs): Document them.
	(Limitations of Usual Tools): Warn that egrep and fgrep may not exist.
	* NEWS: Likewise.

2002-05-27  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/types.m4 (AC_TYPE_MBSTATE_T): New macro.
	* NEWS, doc/autoconf.texi (Particular Types): Document it.
	* lib/autoconf/functions.m4 (_AC_FUNC_FNMATCH): Require it
	instead of AC_MBSTATE_T, which never existed.

2002-05-23  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Hosts and Cross-Compilation): Specify the
	version of Autoconf that is discussed.

2002-05-22  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/fortran.m4 (AC_PROG_F77): Remove cf77 and cft77
	from the default list of compilers to try.  Suggested by
	Kate Hedstrom.
	* NEWS: Document the above.
	* doc/autoconf.texi (Fortran 77 Compiler): Don't suggest cf77.

2002-05-17  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/types.m4 (AC_CHECK_MEMBER): Work correctly even if
	the member is itself an aggregate.  Bug reported by Sergey Poznyakoff.
	This improves on an earlier suggestion by H. Peter Anvin.

2002-05-16  Paul Eggert  <eggert@twinsun.com>

	AC_FUNC_FNMATCH now tests only for POSIX compatibility.
	AC_FUNC_FNMATCH_GNU also tests for GNU extensions.
	Both macros now accept an optional source-dir arg.
	New macro AC_GNU_SOURCE to define _GNU_SOURCE.

	* NEWS: Document this.
	* doc/autoconf.texi (Particular Functions, UNIX Variants): Likewise.

	* lib/autoconf/functions.m4 (_AC_FUNC_FNMATCH): New macro.
	(AC_FUNC_FNMATCH): Use it.  Test only for POSIX conformance,
	not for GNU extensions; this undoes part of the 2000-11-03 change,
	reverting to 2.13-compatible behavior.
	Add new optional argument DIR.
	(AC_FUNC_FNMATCH_GNU): New macro.

	* lib/autoconf/specific.m4 (AC_GNU_SOURCE): New macro.

2002-05-08  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/headers.m4 (AC_HEADER_TIOCGWINSZ):
	Don't require AC_SYS_POSIX_TERMIOS.  The test is unnecessary,
	and it causes a 'test' syntax error if it fails.
	Bug reported by Stephen Gildea.

	* lib/autoconf/functions.m4 (AC_FUNC_SETVBUF_REVERSED):
	If prototypes are supported, use them to check this at compile-time,
	instead of trying to check it at run-time.  If we must do a run-time
	check, assume that setvbuf is standard when cross-compiling, as
	nonstandard setvbuf occurs only on ancient and unlikely hosts.
	Bug reported by Paul D. Smith.

	* lib/autoconf/functions.m4 (AC_FUNC_GETLOADAVG): Add optional
	argument specifying location of getloadavg.c.  This removes a
	FIXME.  This idea was taken from Jim Meyering's implementation in
	textutils.
	* doc/autoconf.texi (Particular Functions): Document this.
	Also, mention HAVE_NLIST_H rather than NLIST_STRUCT, since
	that's what the code does; this fixes a bug reported by
	Paul D. Smith.

2002-05-03  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (autoreconf): Rewrite to use Gettext's
	autopoint instead of gettextize.
	($uses_alocal): Rename as...
	($uses_aclocal): this.
	* doc/autoconf.texi (autoreconf Invocation): Adjust.
	Suggested by Bruno Haible.

2002-05-03  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sugar.m4 (m4_map_sep): New.

2002-04-29  Paul Eggert  <eggert@twinsun.com>

	* bin/autoreconf.in (autoreconf): Don't age aclocal.m4's input
	files to be 1 second older; just set them to be the same time.
	Also, sleep 1 second after the first aclocal, to work around
	problems with sub-second time stamps on the input files.

2002-04-29  Thien-Thi Nguyen  <ttn@gnu.org>

	* doc/autoconf.texi: Mention "set -e -x" lossage
	under node "Limitations of Builtins".

2002-04-29  Akim Demaille  <akim@epita.fr>

	* doc/install.texi: Better wording for setting variables when
	running configure.
	From Christian Cornelssen.

2002-04-29  Akim Demaille  <akim@epita.fr>

	* tests/m4sh.at (LINENO): If testsuite itself is rewritten because
	of lack of $LINENO support, then the test will compare the $LINENO
	in testsuite vs. the lineno in the test file.  This is wrong, of
	course.
	Be sure to protect it.
	Reported by Patrick Welche.

2002-04-25  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Obsolete Macros): Typo.
	Reported by Vladimir Volovich.

2002-04-25  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (autoreconf): Don't let aclocal.m4 be older
	than some of the input files, hence, on the second run of aclocal,
	if some of its input are younger, make them older.
	Suggested by Paul Eggert.

2002-04-25  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Limitations of Usual Tools): sed and `!'.
	Thanks to Paul Eggert.

2002-04-25  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_DEFAULTS): Let ac_subst_files
	and ac_subst_vars be sh variables containing the list of
	AC_SUBST_FILES'ed and AC_SUBST'ed identifiers.  Output them in the
	DEFAULT diversion.
	(_AC_INIT_PREPARE): Use them to log them.
	(_AC_SUBST, _AC_SUBST_SED_PROGRAM): Remove.
	(AC_SUBST, AC_SUBST_FILE): Instead of buliding the
	_AC_SUBST_SED_PROGRAM, store the list of output files/variables in
	_AC_SUBST_FILES and _AC_SUBST_VARS.
	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES): Adjust.

2002-04-24  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (autoreconf): Run automake after autoconf and
	autoheader, so that automake does not complain about a missing
	config.h.in that was to be created.

2002-04-23  Akim Demaille  <akim@epita.fr>

	* bin/autoheader.in (parse_args): --warning takes an argument.
	Fixes PR/220.

2002-04-22  Peter Eisentraut  <peter_e@gmx.net>

	* lib/autoconf/general.m4 (_AC_RUN_IFELSE): Remove gmon.out
	and bb.out when cleaning up.

2002-04-22  Akim Demaille  <akim@epita.fr>

	Version 2.53a.

2002-04-22  Akim Demaille  <akim@epita.fr>

	* tests/m4sh.at (LINENO): Fix the Zsh skip pattern.

2002-04-22  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Pretty Help Strings): Remove a spurious
	comma.
	Reported by Gregory Giannoni.

2002-04-22  Akim Demaille  <akim@epita.fr>

	* tests/m4sh.at (LINENO): Skip the test if LINENO cannot be unset.
	Fixes false failures on Darwin.

2002-04-21  Paul Eggert  <eggert@twinsun.com>

	* TODO, bin/autoupdate.in, doc/autoconf.texi,
	lib/autoconf/general.m4, lib/autoconf/libs.m4,
	lib/autoconf/status.m4, lib/m4sugar/m4sugar.m4, tests/m4sh.at,
	tests/tools.at: Minor spelling and grammar fixes.

2002-04-20  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Shell Substitutions): Fix typos in yesterday's
	ZSH_VERSION fixes.  Bug reported by Raja R Harinath.
	* lib/autotest/general.m4 (AT_INIT): Likewise.
	* tests/atgeneral.m4 (AT_INIT): Likewise.

2002-04-19  Paul Eggert  <eggert@twinsun.com>

	* NEWS, TODO, bin/autom4te.in, bin/autoreconf.in, bin/autoupdate.in,
	doc/autoconf.texi, lib/freeze.mk, lib/Autom4te/Struct.pm,
	lib/autoconf/autoheader.m4, lib/autoconf/c.m4,
	lib/autoconf/functions.m4, lib/autoconf/general.m4,
	lib/autoconf/lang.m4, lib/autoconf/libs.m4, lib/autoscan/identifiers,
	lib/autotest/general.m4, lib/m4sugar/m4sh.m4, tests/atgeneral.m4,
	tests/atspecific.m4, tests/semantics.at, tests/torture.at:
	Minor spelling and grammar fixes.

	* doc/autoconf.texi: Follow the outline suggested in the GNU
	Sample Texts sections of the Texinfo 4.2 manual.  Most
	importantly, this makes sure that the copyright notices appear in
	all output formats.  You probably need Texinfo 4.2 to generate
	the manual now.

	Fix some bugs when using "$@" when there might be zero positional
	arguments in cases where this matters.

	* bin/autoconf.as: Rewrite so that the problem does not come up.
	* lib/autoconf/programs.m4 (AC_CHECK_PROG): Likewise.
	* lib/autoconf/status.m4 (AC_OUTPUT): Likewise.
	* lib/autotest/general.m4 (AT_INIT): Likewise.

	* bin/autoheader.in: Use 'case' statement to work around problem.
	* bin/auto4mte.in: Likewise.
	* bin/autoreconf.in: Likewise.
	* bin/autoscan.in: Likewise.
	* bin/autoupdate.in: Likewise.
	* bin/ifnames.in: Likewise.

	* doc/autoconf.texi (Shell Substitutions): Document the problem.

	* lib/autotest/general.m4 (AT_INIT):
	Use Zsh alias to work around problem.
	* tests/atgeneral.m4 (AT_INIT): Likewise.

	* tests/c.at: We can't have zero arguments, so remove workaround
	that is not portable to Zsh.

2002-04-19  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* bin/autoupdate.in (handle_autoconf_macros): Honor AU_DEFUNs
	from aclocal.m4 too.

2002-04-12  Akim Demaille  <akim@epita.fr>

	* tests/wrappl.as: New, M4sh precursor of wrappl.in.

2002-04-10  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Install the Zsh
	workaround for ${1+"$@"}.
	* doc/autoconf.texi (Shell Substitutions): Explain it.
	From Oliver Kiddle and Peter Stephenson.

	Have M4sh perform minimal shell sanitizing.

	* lib/m4sugar/m4sh.at (AS_SHELL_SANITIZE): Split the `_AS_PREPARE_*'
	part into...
	(_AS_PREPARE): this new macro.
	(AS_PREPARE): New.
	(AS_INIT): Invoke AS_SHELL_SANITIZE.
	* tests/m4sh.at (AT_DATA_LINENO): Use _AS_PREPARE.

	Adjust Autoconf and Autotest.

	* lib/autoconf/general.m4 (_AC_INIT_DEFAULTS): Don't invoke
	AS_SHELL_SANITIZE, AS_INIT did it, but invoke AS_PREPARE.
	* lib/autotest/general.m4 (AT_INIT): Likewise.
	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS):
	Invoke _AS_PREPARE (not AS_PREPARE) in addition to
	AS_SHELL_SANITIZE.

	Use this M4sh to generate Autoconf's shell scripts.

	* tests/wrapsh.as: New, precursor of wrapsh.in.
	* tests/Makefile.am: Include lib/freeze.mk to get the dependencies
	on Autotest and M4sh.
	($(TESTSUITE)): Use $(autotest_m4f_dependencies).
	(wrapsh.in): New target.
	* bin/autoconf.as: New, precursor of autoconf.in.
	(autoconf.in): New target.

2002-04-09  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* doc/autoconf.texi (Limitations of Make): Mention the issue
	with indented comments in rules.

2002-04-09  Andreas Schwab  <schwab@suse.de>

	* lib/autoconf/status.m4 (_AC_SRCPATHS): Handle empty
	ac_top_builddir when setting ac_abs_top_builddir.

2002-04-06  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Systemology): Add link to Unix V7 online docs.
	(Portable Shell): Cross reference to Systemology.

2002-04-05  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (autoreconf): Be sure to accumulate the
	directories when descending in a SUBDIRS.
	Reported by Ezra Peisach.

2002-04-04  Andreas Schwab  <schwab@suse.de>

	* lib/m4sugar/m4sh.m4 (_AS_PATH_WALK): Only simplify if path
	contains no literal separators.

2002-04-03  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_CONFIG_FILE, _AC_CONFIG_HEADER)
	(_AC_CONFIG_COMMAND, _AC_CONFIG_LINK): New.
	Use dnl, not the KILL diversion.
	Extracted from...
	(AC_CONFIG_FILES, AC_CONFIG_HEADERS, AC_CONFIG_COMMANDS)
	(AC_CONFIG_LINKS): here.
	Adjust.
	Don't use the KILL diversion, as it kills spurious output, which
	results in failures being hidden.
	Use m4_defn where appropriate.
	(AC_CONFIG_IF_MEMBER): Kill the real bug: a spurious parenthesis
	after the second argument.
	Use m4_defn.
	* lib/autom4te.in (Autoconf, Autotest, M4sh): Don't pass --warning
	syntax, as it is provided by M4sugar.
	* tests/torture.at (Multiple AC_CONFIG_FILES): New.

2002-04-03  Andreas Schwab  <schwab@suse.de>

	* lib/m4sugar/m4sugar.m4 (m4_bmatch): Make sure m4_bregexp is not
	expanded if $# <= 2.

	* bin/autoreconf.in (autoreconf): Run automake after rerunning
	aclocal.

2002-04-03  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/lang.m4 (_AC_COMPILER_OBJEXT_REJECT)
	(_AC_COMPILER_EXEEXT_REJECT): New.
	Also recognize *.bb and *.bbg as compilation byproducts.
	(_AC_COMPILER_EXEEXT_DEFAULT, _AC_COMPILER_EXEEXT_O)
	(_AC_COMPILER_OBJEXT): Use them.
	Fixes Debian #138666.

2002-04-02  Peter Eisentraut  <peter_e@gmx.net>

	Integrate AC_PROG_CC_STDC into AC_PROG_CC.

	* lib/autoconf/c.m4 (AC_PROG_CC_STDC): Rename to _AC_PROG_CC_STDC.
	AU_DEFUN old name.  Use _AC_COMPILE_IFELSE.
	(AC_PROG_CC): Call _AC_PROG_CC_STDC.
	(AC_C_INLINE): Do not require AC_PROG_CC_STDC.
	(AC_C_CONST): Same.
	(AC_C_INLINE): Same.
	(AC_C_PROTOTYPES): Same.  Require AC_PROG_CC instead.
	* doc/autoconf.texi, NEWS: Document.
	* tests/mktests.sh (au_exclude_list): Add AC_PROG_CC_STDC and
	AC_C_CROSS.

2002-04-02  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Invoke
	_AS_MKDIR_P_PREPARE.

2002-03-28  Kevin Ryde  <user42@zip.com.au>

	* lib/autoconf/c.m4 (AC_C_INLINE): Test with a typedef return value,
	to avoid versions of HP C which don't allow that.

2002-03-27  Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (_AS_BASENAME_PREPARE): New macro.
	(AS_SHELL_SANITIZE): Invoke it.
	(AS_BASENAME): AS_REQUIRE it, and use $as_basename.

2002-03-26  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Portable Shell): Add pointers to FAQs.

2002-03-26  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Introduction): The GNATS base moved.

2002-03-25  Paul Eggert  <eggert@twinsun.com>

	* tests/m4sh.at: Don't rely on "PATH=test:$PATH test-1" working
	as POSIX requires, as it doesn't work with Zsh.
	* doc/autoconf.texi (Assignments): Document the problem.

2002-03-25  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* doc/autoconf.texi (Limitations of Make): Mention more issue
	about VPATH, overriding of macros in sub-makes, and handling of
	SHELL.

2002-03-21  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Here-Documents): Mention Solaris 8 dtksh
	problem with here-document buffer boundaries.

	* lib/m4sugar/m4sh.m4 (_AS_LINENO_PREPARE): Unset ENV and BASH_ENV
	when reinvoking the shell, to work around problems with installers
	who put strange things like "cd" commands in their environments.

2002-03-19  Akim Demaille  <akim@epita.fr>

	* tests/semantics.at (AC_C_BIGENDIAN): s/unknow/unknown/.
	From Aaron Ucko.

2002-03-19  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (scan_file): Specify the location in `&used'
	invocations.
	From Nicolas Joly.

2002-03-19  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: Adjust @code/@command, @xref/@ref usage.
	From Nishio Futoshi.

2002-03-19  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sugar.m4 (m4_define_default, m4_fst, m4_map): New.

2002-03-18  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Programming in M4sh): Add AS_MKDIR_P.
	(Limitations of Usual Tools): Add mkdir section.

	* lib/m4sugar/m4sh.m4 (_AS_MKDIR_P_PREPARE): New macro.
	(AS_MKDIR_P): Require it.  Use mkdir -p if available, falling
	back on AS_DIRNAME to compute prefixes otherwise; this is
	roughly what mkinstalldirs does.  That way, we need not have
	our own filename disassembler.  The old disassembler did not
	work with Solaris 8 dtksh, which is ksh Version M-12/28/93d.

	* lib/autotest/general.m4 (AT_INIT, AT_CLEANUP):
	Create at_test_all by a series of assignments,
	not by a single assignment of a long string.  The latter causes ksh
	version 11/16/88g to silently misbehave on OpenServer 5.0.6a,
	presumably because of a buffer overrun.

2002-03-14  Paul Eggert  <eggert@twinsun.com>

	* lib/autotest/general.m4 (at_times_skip):
	Renamed from at_times.  Now a boolean.
	ksh93 Version M-12/28/93d doesn't like 'x=times; $x'; it
	says 'times: not found'.

2002-03-14  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (&study_gettextize): New.
	(&autoreconf): Handle newest gettextize.
	Rerun aclocal if needed.
	Suggested by Andreas Schwab.

2002-03-13  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Special Shell Variables): More about IFS.

2002-03-13  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Header Portability): New.
	Add information about stdint.h and inttypes.h from Paul Eggert.

2002-03-13  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Limitations of Usual Tools): Some about `cp
	-p'.
	From Bob Proulx.

2002-03-12  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (AS_BASENAME_EXPR): AS_REQUIRE, not
	m4_require.

2002-03-11  Andreas Schwab  <schwab@suse.de>

	* configure.ac: Explicitly check for EMACS since AM_PATH_LISPDIR
	does not do it if --with-lispdir is given.

2002-03-08  Akim Demaille  <akim@epita.fr>

	Version 2.53.

2002-03-08  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Subdirectories): Clarify that the
	subdirectory should exist.

2002-03-08  Akim Demaille  <akim@epita.fr>

	* Makefile.am (AUTOMAKE_OPTIONS): 1.6.

2002-03-08  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&handle_m4): Do not foreach with `$_' as it
	aliases the actual variables, and modifications of the former
	affect the latter.

2002-03-08  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&handle_m4): Protect us from corrupted file
	because of C-c: have m4 output in tmp files, then mv them.

2002-03-08  Akim Demaille  <akim@epita.fr>

	* bin/autoconf.in, bin/autoheader.in, bin/autom4te.in,
	* bin/autoreconf.in, bin/autoscan.in, bin/autoupdate.in,
	* bin/ifnames.in: Copyright update.

2002-03-08  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Invoking autom4te): New.

2002-03-05  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Specifying Names): Clarification suggested by
	Kevin Ryde.

2002-03-05  Akim Demaille  <akim@epita.fr>

	Version 2.52i.

2002-03-04  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (AC_LIBOBJ vs. LIBOBJS): New.
	* lib/autoconf/general.m4 (AC_INIT): More informative error
	message for LIBOBJ.

2002-03-04  Akim Demaille  <akim@epita.fr>

	* lib/freeze.mk ($(build_libdir)/m4sugar/version.m4): New, for
	parallel builds.

2002-03-04  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Transforming Names): Equality between target
	and host is irrelevant.
	(Specifying Names, Canonicalizing): Remove all references to the
	backward compatibility hooks.  Rather, collect them all into...
	(Hosts and Cross-Compilation): this new section.
	* doc/install.texi (System Type): Ditto.
	* lib/autoconf/general.m4 (AC_CANONICAL_HOST): Explicitly state
	that `--host' implies cross-compilation.

2002-03-04  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Evaluation Macros): New.
	* lib/m4sugar/m4sugar.m4 (m4_lquote): Remove, it is totally
	useless.
	(_m4_foreach): Define the variant with immediate evaluation so
	that it contains exactly the items, not an expression which
	evaluation is the current item.
	(m4_re_string, m4_re_word): Don't over quote them.

2002-03-04  Akim Demaille  <akim@epita.fr>

	Instead of having stacking `shift's evaluated at the end, let
	`foreach' loops immediately evaluate them.

	* lib/m4sugar/m4sugar.m4 (m4_quote, m4_dquote): Use $@ rather than
	$*.  This is the n-th time I change my mind, but hopefully this is
	the last...
	(m4_lquote): New.
	(m4_text_wrap): Use m4_foreach, which is finally correct _and_
	efficient.
	(m4_foreach_quoted, m4_car_quoted, _m4_foreach_quoted): Remove, as
	it was only a hack for m4_text_wrap.
	(m4_car2): Remove, replaced by...
	(m4_cdr): New.
	(_m4_foreach): Adjust.
	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Adjust, and use
	m4_bpatsubst for clarification.

2002-03-04  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Changequote is Evil): New.

2002-03-03  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Portable Shell): Mention 32-byte #! length limit
	on old systems like SunOS.

2002-03-01  Peter Eisentraut  <peter_e@gmx.net>

	* lib/autoconf/c.m4, lib/autoconf/fortran.m4,
	lib/autoconf/functions.m4, lib/autoconf/general.m4,
	lib/autoconf/headers.m4, lib/autoconf/lang.m4,
	lib/autoconf/programs.m4, lib/autoconf/status.m4: Improve spelling
	of messages.

2002-02-28  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Suggest a title to the
	message to be sent.

2002-02-28  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Function Portability): Add va_copy and va_list.

2002-02-25  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (AC_FUNC_SETPGRP): Fix the test.
	From Akinori Musha.

2002-02-13  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* lib/Autom4te/XFile.pm (getline, getlines): New functions,
	translate \r\n to \n.

2002-02-07  Akim Demaille  <akim@epita.fr>

	Version 2.52h.

2002-02-07  Akim Demaille  <akim@epita.fr>

	Fix Autoconf PR/209.
	Also reported by Frank Denis.

	* lib/m4sugar/m4sh.m4 (_AS_PATH_WALK): Don't over quote.

2002-02-07  Akim Demaille  <akim@epita.fr>

	Fix Autoconf PR/207:
	AC_PREFIX_PROGRAM fails with dashed program names

	* lib/autoconf/general.m4 (AC_PREFIX_PROGRAM): Just use a fresh
	variable when looking for the prefix program.
	Now it also works for shell variables.

2002-02-07  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Limitations of Builtins): More about
	case/esac.

2002-02-06  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_OUTPUT_COMMANDS): Don't output empty
	case/esac, some shells don't support it.
	Reported by Zack Weinberg.
	* tests/torture.at (AC_CONFIG_COMMANDS with empty commands): New.

2002-02-06  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): When handling --keywords, be
	sure not to introduce newlines in at_groups.
	* lib/autotest/Makefile.am (autotest.m4f): Typo.

2002-02-06  Akim Demaille  <akim@epita.fr>

	* tests/torture.at (Configuring subdirectories): Skip if aclocal
	is not available.

2002-02-05  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Specific Compiler Characteristics):
	Describe HP-UX cc bug workaround more accurately.
	* lib/autoconf/types.m4 (AC_CHECK_SIZEOF): Cast to long,
	not unsigned long.
	* tests/semantics.at (AC_CHECK_SIZEOF): Check non-GCC
	cross-compilers, too.  This undoes some of the most recent change
	to this file.

2002-02-05  Akim Demaille  <akim@epita.fr>

	* tests/Makefile.am (check_SCRIPTS): Use it, instead of WRAPPERS,
	to make sure they are up to date when `check' is run.

2002-02-05  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Making testsuite Scripts): Document
	package.m4.

2002-02-05  Akim Demaille  <akim@epita.fr>

	* lib/freeze.mk: New.

2002-02-05  Akim Demaille  <akim@epita.fr>

	Implement `autom4te --freeze'.

	* bin/autom4te.in (&freeze): New.
	* lib/autoconf/autoconf.m4, lib/autotest/general.m4,
	* lib/m4sugar/m4sh.m4: Don't include files given by autom4te.

2002-02-05  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&parse_args): Implement `frozen files are
	optional are the sum of the previous files on the command line'.
	Also, pass `--reload-state=' on them, so...
	(handle_m4): don't.
	* lib/autom4te.in (Autotest, Autoconf): Rely on M4sh.
	(M4sh): Rely on M4sugar.
	(Autotest, M4sh, M4sugar): Use frozen files.

2002-01-31  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_PACKAGE): Accept $4.
	* doc/autoconf.texi (Initializing configure): Adjust.

2002-01-30  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_PACKAGE): Map non
	alphanumeric to `-' instead of `_'.

2002-01-30  Akim Demaille  <akim@epita.fr>

	* tests/semantics.at (AC_CHECK_SIZEOF): Split into two tests: one
	for plain code, the other for cross-compilation code.  The latter
	is now run with GCC only.
	* doc/autoconf.texi (Compilers and Preprocessors): New.

2002-01-30  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_PACKAGE): Support pre-defined
	values.
	* doc/autoconf.texi (Initializing configure): Explain how to
	change AC_INIT default values.

2002-01-29  Akim Demaille  <akim@epita.fr>

	* tests/torture.at (Configuring subdirectories): Use configure.in,
	so that aclocal 1.4 works.
	Reported by Alexandre Duret-Lutz and Larry Schmitt.

2002-01-28  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Writing testsuite.at): AT_CLEANUP no longer
	needs an argument.

2002-01-28  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Don't be ridiculous: adjust
	AUTOTEST_PATH *after* it was set.
	Don't put `.' in the PATH: the user should be precise and `./' if
	needed.  In addition, given that the test suite does some `cd', if
	`.' is in the path, the `tested programs' sections will report
	programs found in the test suite's directory, while during the
	tests (performed in their own directory), these programs are no
	longer visible.  In other words, the results is confusing and
	useless.
	* tests/m4sh.at: Adjust: don't rely on `.' being in the PATH.

2002-01-24  Akim Demaille  <akim@epita.fr>

	Version 2.52g.

2002-01-24  Akim Demaille  <akim@epita.fr>

	* bin/autoheader.in, bin/autoconf.in, bin/autoscan.in,
	* doc/autoconf.texi: Finally add Akim as an author.

2002-01-24  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (_AS_LINENO_PREPARE): Use PATH_SEPARATOR.
	(_AS_PATH_SEPARATOR_PREPARE): Don't expect $SHELL to be
	Bourne. Use /bin/sh.
	From Andreas Buening.

2002-01-24  Akim Demaille  <akim@epita.fr>

	* config/config.guess, config/config.sub, config/texinfo.tex:
	Update from masters.

2002-01-24  Akim Demaille  <akim@epita.fr>

	* Makefile.am (AUTOMAKE_OPTIONS): 1.5b.
	* config/auxdir.m4, config/cond.m4, config/depend.m4,
	* config/init.m4, config/install-sh.m4, config/lispdir.m4,
	* config/missing.m4, config/sanity.m4, config/select.m4,
	* config/strip.m4: Remove, to ease sync'ing with any version of
	Automake.

2002-01-24  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_PARSE_ARGS)
	(_AC_INIT_PREPARE): Support -n as --no-create, as documented.
	Reported by Geir Ove Myhr.

2002-01-21  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (AC_FUNC_MMAP): #Undef malloc.

2002-01-21  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (getopt): Use a more GNUish error
	message on invalid options.
	* bin/autom4te.in (parse_args): Don't use
	Autoconf::General::getopt with non valid options.

2002-01-17  Jim Meyering  <meyering@lucent.com>

	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Initialize
	$ac_cv_exeext so we don't use an old, invalid, cached value.

2002-01-11  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (AC_FUNC_STRNLEN): New, from Jim
	Meyering.
	* doc/autoconf.texi (Function Portability): Document the strnlen
	limitation.
	(Particular Functions): Document AC_FUNC_STRNLEN.
	* lib/autoscan/functions: Adjust.

2002-01-06  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): Don't create
	package.m4, since is really depends upon configure.ac, not
	configure.
	* doc/autoconf.texi (testsuite Scripts): Adjust.
	* tests/Makefile.am (package.m4): New.
	EXTRA_DIST it since its a source.

2002-01-06  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_PARSE_ARGS): Move the AC_SUBST
	of PACKAGE_NAME, PACKAGE_TARNAME, PACKAGE_VERSION, PACKAGE_STRING,
	and PACKAGE_BUGREPORT from here...
	(_AC_INIT_DEFAULTS): to here, since it is unrelated to the
	arguments.
	(_AC_INIT_PREPARE): AC_DEFINE these symbols.
	* lib/autotest/general.m4: Use AT_PACKAGE_*, not PACKAGE_*.
	(AT_INIT): No longer catch `^PACKAGE_(BUGREPORT|STRING)$'.
	* tests/tools.at (autoheader): Adjust.
	* tests/atspecific.m4 (AT_CHECK_DEFINES): Adjust.

2002-01-06  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (scan_file): Use `&used'.

2002-01-03  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Output): Improved wording regarding use of
	AC_OUTPUT.
	From Olly Betts.

2001-12-18  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Function Portability): Add notes on sscanf
	sometimes needing writable input.

2001-12-17  Jim Meyering  <meyering@lucent.com>

	* doc/autoconf.texi (New Macros): Tweak wording.

2001-12-14  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): We cleaning up the
	trailing files, don't apply `-rf' to files which might not be
	created by configure (core, core.*, and *.core), but just `rm -f'.
	Suggested by Jonathan Kamens.

2001-12-14  Aaron M. Ucko  <amu@alum.mit.edu>

	* lib/autoconf/general.m4: Avoid duplicates in `$ac_configure_args'.

2001-12-14  Akim Demaille  <akim@epita.fr>

	* Makefile.am (MAINTAINERCLEANFILES): Remove configure.

2001-12-13  Peter Eisentraut  <peter_e@gmx.net>

	* lib/autoconf/status.m4 (_AC_SRCPATHS): Rename buildpath to
	abs_builddir, top_buildpath to abs_top_builddir, srcpath to
	abs_srcdir, top_srcpath to abs_top_srcdir.
	(_AC_OUTPUT_FILES): Adjust.
	* NEWS, doc/autoconf.texi, lib/autoconf/autotest.m4,
	* tests/atspecific.m4, tests/autoreconf.in, tests/tools.at,
	* tests/wrappl.in, tests/wrapsh.in: Adjust.

2001-12-12  Steven G. Johnson  <stevenj@alum.mit.edu>

	* lib/autoconf/fortran.m4 (_AC_PROG_F77_V_OUTPUT): Fix failed
	C/Fortran linking on HP/UX, by extracting the Fortran library
	search path from the LPATH line in the $F77 -v output.

2001-12-12  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (File Descriptors): Use a clearer layout for the
	forbidden file descriptors table.

2001-11-26  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (%c_keywords): Build it at top level.
	Map to 1 in order to simplify its uses.

2001-11-26  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (&scan_c_file, &scan_sh_file, &scan_makefile):
	Remove $filepath, useless.
	(&scan_makefile): Don't remove the $(FOO), ${FOO} and @FOO@
	variables, they are really part of the tokens.
	Split the input line on spaces and then look for tokens.
	Now autoscan ceases to ask for AC_PROG_LEX for the package Bison
	because of `lex$U.$(OBJEXT)'.
	(&scan_files): Use "@list" instead of join.
	* doc/Makefile.am (CLEANFILES): Add *.fns.

2001-11-26  Akim Demaille  <akim@epita.fr>

	* tests/autoreconf.in, tests/autom4te.in, tests/autoupdate.in:
	Remove, replaced by...
	* tests/wrappl.in: Be common for all the Perl executables.
	In particular autoscan and autoheader want -I.
	* configure.ac: Adjust.
	* lib/autoscan/headers: errno.h is portable.

2001-11-26  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (used): New.
	Use it.

2001-11-26  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (&scan_c_file): Better parsing of CPP
	directives.
	(&scan_sh_file): Remove a duplicate pattern.
	(&check_configure_ac): Use long options.
	* lib/autoscan/headers (alloca.h): Check with AC_FUNC_ALLOCA.

2001-11-26  Akim Demaille  <akim@epita.fr>

	* bin/autoscan.in (scan_c_file): Fix the handling of C comments.
	Before, having a line containing the opening of a multi line
	comment made the whole line be ignored.

2001-11-26  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Using an Autotest Test Suite): New.
	(testsuite Scripts): Be one of its subsection.
	(Autotest Logs): New.

2001-11-26  Akim Demaille  <akim@epita.fr>

	Test groups are now run two directories deeper.

	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): Replace srcdir,
	top_srcdir and top_builddir with at_srcdir, at_top_srcdir and
	at_top_builddir.
	* lib/autotest/general.m4 (AT_INIT): Compute srcdir,
	top_srcdir, builddir and top_builddir.
	Use `at_*dir' relatively to the directory containing the
	suite, use `*dir' when relatively to the current group dir.

2001-11-25  Joseph S. Myers  <jsm28@cam.ac.uk>

	* doc/autoconf.texi, TODO, lib/autoconf/fortran.m4,
	lib/autoconf/functions.m4, lib/autoconf/headers.m4,
	tests/atgeneral.m4, tests/tools.at, tests/atspecific.m4: Fix
	spelling errors.

2001-11-22  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* doc/autoconf.texi (Using System Type): Add an example of `case
	$host' usage so people quit using `case $target' everywhere.

2001-11-22  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Installation Directory Variables): Englishoes
	spotted by Jim Meyering.

2001-11-16  Paul Eggert  <eggert@twinsun.com>

	This patch implements a `long double' suggestion by Oliver Kiddle.

	* lib/autoconf/c.m4 (AC_LANG_BOOL_COMPILE_TRY(C)): Make the array
	static, to catch errors if the value isn't known at compile-time
	and the compiler supports dynamic arrays.  Change its name from
	`_array_' to `test_array' to avoid potential name clashes.
	(AC_C_LONG_DOUBLE): Make it a compile-time test, not a run-time
	test.  Do not define HAVE_LONG_DOUBLE if `long double' is no
	better than double.  Catch a bug in GCC 2.95.2 x86.
	* doc/autoconf.texi (C Compiler): Document the above.
	* NEWS: Likewise.

2001-11-13  Akim Demaille  <akim@epita.fr>

	* tests/m4sh.at (LINENO): Protect from autom4te's substitution by
	hand.
	* tests/tools.at: Don't protect dnl, AT_DATA_M4SH does.

2001-11-13  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): After having run the test
	group, go back to the initial directory, not to at_suite_dir.

2001-11-13  Akim Demaille  <akim@epita.fr>

	* tests/atspecific.m4 (AT_DATA_M4SUGAR, AT_DATA_M4SH)
	(AT_DATA_AUTOCONF):  Also protect @&t@ from autom4te.
	(AT_CHECK_AUTOCONF, AT_CHECK_AUTOHEADER): Pass no --include
	option.
	(AT_CHECK_CONFIGURE): Use absolute paths.
	(_AT_CHECK_AC_MACRO): Create aclocal.m4 with AC_STATE_SAVE in it.
	The problem is still the old one: there is no means in M4 (that I
	know about) to create a defining macro, because there is no means
	to create `$1' etc., therefore, the defining macro ``swallows''
	all the arguments meant to the defined macro.

2001-11-13  Akim Demaille  <akim@epita.fr>

	* tests/atspecific.m4 (AT_DATA_AUTOCONF): New.
	(AT_CONFIGURE_AC): Output the definition of AC_STATE_SAVE in
	configure.ac.
	* tests/aclocal.m4: Remove, as it is no longer used.

2001-11-13  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4: Change `tests?' into `groups?' in
	variable names when referring to a single test group, or to
	`suite' when referring to the whole test suite.
	`at_last_test' is removed: m4 compute at_format itself.
	(at_stdout, at_stder1, at_stderr): New variables.
	(AT_CHECK): Use them.

2001-11-13  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Be sure to put `.', relative,
	in PATH.
	Create `testsuite.dir/003/run' instead of `testsuite.003'.
	Do it as soon as a test fails, don't wait till the end of the test
	suite.
	Don't remove $as_me.[0-9]*, since these files no longer exist.

2001-11-13  Akim Demaille  <akim@epita.fr>

	* tests/tools.at: Use absolute paths, since we are no longer run
	in place.

2001-11-13  Akim Demaille  <akim@epita.fr>

	Now that tests are running in their own private dir, there is no
	need to list the files to remove at the end of tests groups.

	* lib/autotest/general.m4 (_AT_CLEANUP_FILE, AT_CLEANUP_FILES):
	(AT_data_files, at_data_files): Remove.
	(AT_CLEANUP, AT_DATA): Simplify.
	(AT_INIT): Adjust.
	Remove the group dir if !debug && !failed.
	* tests/atspecific.m4: Adjust.

2001-11-13  Akim Demaille  <akim@epita.fr>

	Start a new layout for Autotest: `testsuite' creates
	`testsuite.dir' in which the at-check-line etc. files are to be
	found, and `testsuite.dir/003' where the test group 3 is run.

	* lib/autotest/general.m4 (AT_INIT): at_tests_dir,
	at_check_line_file, at_format, at_test_normalized, at_group_dir
	are new variables.
	Create the directories.
	Use absolute paths for at- files.
	(AT_CHECK): Adjust.

2001-11-11  Michael Matz  <matz@kde.org>

	* m4sugar.m4 (_m4_foreach): Make it linear instead quadratic.
	(m4_car2): New.
	(m4_car): Properly quote arguments.

2001-11-13  Akim Demaille  <akim@epita.fr>

	* tests/aclocal.m4 (AC_STATE_SAVE): s/LIBOBJS/LIB@&t@OBJS/ to cope
	with stricter rules on LIBOBJS.

2001-11-12  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/c.m4 (AC_C_PROTOTYPES): Define __PROTOTYPES too.
	* doc/autoconf.texi (C Compiler): AC_C_PROTOTYPES now defines
	__PROTOTYPES too.

2001-11-12  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (AC_FUNC_GETMNTENT): Use AC_CHECK_FUNCS.

2001-11-12  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/c.m4, lib/autoconf/fortran.m4,
	* lib/autoconf/functions.m4, lib/autoconf/general.m4,
	* lib/autoconf/headers.m4, lib/autoconf/libs.m4,
	* lib/autoconf/programs.m4, lib/autoconf/specific.m4,
	* lib/autoconf/types.m4: When invoking AC_DEFINE and friends,
	specify to what the macro should be defined (typically to 1).

2001-11-12  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (AC_FUNC_STRTOD): AC_SUBST POW_LIB.
	From Jim Meyering.

2001-11-12  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/programs.m4 (_AC_PROG_LEX_YYTEXT_DECL): Use
	AC_TRY_EVAL to run $LEX, not AC_TRY_COMMAND.  This validates the
	definition used by Automake where LEX is +/- "${missing} lex" and
	`missing' itself contains variables.

2001-11-12  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Push KILL at the end.
	Now that M4sh pushes BODY, the comments were output at the end of
	the test suites.

2001-11-08  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (&autoreconf): Run aclocal before tracing, so
	that we can trace macros from aclocal.m4.
	Trace AC_PROG_LIBTOOL, not AM_PROG_LIBTOOL, since the latter is
	obsoleted, and redirect to the former anyway.
	Reported by Ralf Corsepius.

2001-11-08  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (&autoreconf): AC_CONFIG_SUBIDRS are to be
	processed only if present.
	* tests/torture.at (Configuring subdirectories): Use autoreconf
	instead of successive calls to autoconf.
	Add a nonexistent subdirectory to exercise the patch above.
	Reported by Ralf Corsepius.

2001-11-08  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Limitations of Usual Tools): Note HP-UX cc
	doesn't accept .S files.

2001-11-07  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sugar.m4 (m4_pattern_forbid): Accepts $2.
	* lib/autoconf/general.m4 (AC_INTI): Forbid LIBOBJS.
	(_AC_LIBOBJ): s/LIBOBJS/LIB@&t@OBJS/.
	* bin/autom4te.in (warn_forbidden): New.
	(handle_output): Use it.
	Read m4_pattern_forbid with messages.

2001-11-05  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (--normalize): Remove.
	* lib/autom4te.in: Adjust.

2001-11-05  Akim Demaille  <akim@epita.fr>

	* tests/Makefile.am (testsuite): Rename this target as...
	($(TESTSUITE)): this.
	From Nicolas Joly.

2001-11-05  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* lib/autoconf/status.m4 (_AC_OUTPUT_SUBDIRS): When removing
	the --prefix option, also remove it's argument.

2001-11-05  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (testsuite Invocation): Update.
	(Writing testsuite.at): Update.

2001-11-03  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: s/@code/@command/ where appropriate.

2001-11-03  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm: (&catfile, &canonfile)
	(&file_name_is_absolute): New, wrappers around routines from
	File::Spec.
	Use and export them.
	(&find_configure_ac): Optionally take a directory where to look at.
	* bin/autoreconf.in (&parse_args): Trim the configure.ac part of
	the arguments.
	Default @ARGV to `.', not find_configure_ac.
	(&autoreconf): Argument is a directory.
	Trace AC_CONFIG_SUBDIRS and schedule the subdirs for autoreconf'ing.
	* doc/autoconf.texi (autoreconf Invocation): Update.

2001-11-03  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (@export_vars, @export_subs)
	(@export_forward_subs): New.
	Add basename, dirname, and fileparse.
	(@EXPORT): Adjust.
	* bin/autoreconf.in (&autoreconf): Fix call to fileparse.
	Don't look for aclocal flags if we already know aclocal is not
	used.
	Move aclocal.m4t only if it exists.
	Reported by Ezra Peisach.

2001-11-03  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (&parse_args): Work only on the configure.ac
	passed on command line, defaulting to ./configure.ac if present.
	(&maybe_autoreconf, File::Find): Remove, unused.
	(&autoreconf): If autoconf is not used, don't try to trace.

2001-11-02  Akim Demaille  <akim@epita.fr>

	* configure.ac: Bump to 2.52g.

2001-11-02  Akim Demaille  <akim@epita.fr>

	Version 2.52f.

2001-11-02  Akim Demaille  <akim@epita.fr>

	* config/config.guess, config/config.sub, doc/standards.texi:
	* config/lispdir.m4: Update from masters.
	* configure.ac: Bump to 2.52f.

2001-11-02  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (&autoreconf): Set `$aclocal_flags' to ''.
	Don't run aclocal when aclocal.m4 is not from aclocal.
	From Ezra Peisach.
	Don't run libtoolize and gettextize if --install is not given.

2001-11-01  Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): _AS_CR_PREPARE needs to
	be invoked before _AS_LINENO_PREPARE.
	(_AS_LINENO_PREPARE): Use as_cr_digits and as_cr_alnum rather
	than character ranges.

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Fix NLS before
	invoking AS_BASENAME.  Set the locale variables to 'C' if
	possible, as POSIX requires this to get the traditional
	behavior.
	* doc/autoconf.texi (Special Shell Variables): Describe the above.

2001-10-31  Paul Eggert  <eggert@twinsun.com>

	* lib/m4sugar/m4sh.m4 (_AS_LINENO_WORKS): Do not surround body
	with {}, as that triggers a bug in Bash 2.05.

	(_AS_LINENO_PREPARE): Use Sed rather than
	Awk.  Fix the sed prepass to work even if there are multiple
	instances of $LINENO on the same line.  Do not substitute for
	other variables like $LINENOT.  Do not check file dates; such a
	check is unreliable on sufficiently fast machines, and removing
	the check makes the code simpler and more reliable.  Check for
	output and chmod failures.

	* doc/autoconf.texi (Special Shell Variables): Document
	the above.

2001-10-31  Akim Demaille  <akim@epita.fr>

	* tests/Makefile.am (atconfig): Remove this target, Automake
	handles it now.

2001-10-31  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): Do not
	AC_CONFIG_FILES(atlocal) as it means a file atlocal.in *must* be
	provided, while it is optional.
	* configure.ac: Adjust.

2001-10-26  Paul Eggert  <eggert@twinsun.com>

	* NEWS, README, configure.ac, lib/Autom4te/General.pm,
	  lib/Autom4te/Struct.pm:
	Require Perl 5.005_03 instead of just 5.005, as some tests fail
	with 5.005_02.

	* doc/autoconf.texi (Special Shell Variables): Document some
	more LINENO gotchas, particularly with respect to the Awk+Sed hack.

	* lib/m4sugar/m4sh.m4 (_AS_LINENO_WORKS): New macro.
	(_AS_LINENO_PREPARE): Use it instead of shell eval, since
	eval $LINENO is not portable in practice.

2001-10-24  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (backname): New.

2001-10-24  Akim Demaille  <akim@epita.fr>

	* m4/: Remove, merged into...
	* config/: here.

2001-10-23  Tim Van Holder  <tim.van.holder@pandora.be>

	* doc/autoconf.texi (Shellology): Mention the problems with bash
	2.05's use of ANSI quoting in its `set' builtin.

2001-10-22  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/functions.m4 (AC_FUNC_STRERROR_R):
	Rename ac_cv_func_strerror_r_works to ac_cv_func_strerror_r_char_p,
	and rename HAVE_WORKING_STRERROR_R to STRERROR_R_CHAR_P, since
	POSIX decided to standardize on the int flavor of strerror_r.
	Always do char* test, as there's no reason not to.
	Assign to a char* var, to catch strerror_r that returns int*.

	* doc/autoconf.texi (Particular Functions):
	Document the above changes.  Also, document the fact that
	AC_FUNC_STRERROR_R defines HAVE_DECL_STRERROR_R.

	* NEWS: Mention HAVE_WORKING_STRERROR_R -> STRERROR_R_CHAR_P.

2001-10-20  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): The name of
	the executable was missing from the log.

2001-10-20  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (&update_file): If destination is
	unchanged, remove the source.
	(&up_to_date_p): Don't be verbose, be debug.
	* bin/autoreconf.in: No longer support --m4dir.
	(&autoreconf): Display the full path of the configure.ac we are
	studying.
	Trace it only once.
	Be sure to honor --force with gettextize.
	Always run aclocal.
	* doc/autoconf.texi: Adjust.

2001-10-20  Akim Demaille  <akim@epita.fr>

	* bin/autoheader.in ($localdir, $m4, $SIMPLE_BACKUP_SUFFIX):
	Remove, dead.
	* bin/autoreconf.in (&autoreconf): Do not run gettextize when
	`intl' is already present, as it refuses unless --force.
	(&parse_args): Use -I, --include instead of the old Autoconf
	options.
	($localdir, $autoconf_dir): Remove.
	(@include): New.
	(&maybe_autoreconf): New, to preserve $_ for File::Find.

2001-10-19  Jens Petersen  <petersen@redhat.com>

	* lib/autoconf/programs.m4 (AC_PROG_AWK): Prefer gawk to mawk.
	* doc/autoconf.texi (Particular Programs): Likewise.

2001-10-19  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_OUTPUT_FILES): Name the generated
	file in @configure_input@.
	Don't mention `automatically' in addition to `generated'.
	* tests/torture.at (#define header templates): Adjust.

2001-10-19  Akim Demaille  <akim@epita.fr>

	* lib/emacs/autoconf-mode.el, lib/emacs/autotest-mode.el: In a
	comment, explain how to install automatic mode selection.
	From Russ Allbery.

2001-10-19  Ezra Peisach  <epeisach@zif.mit.edu>

	* bin/autoreconf.in (autoreconf): Display the path to the
	configure.ac being studied.

2001-10-18  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/types.m4 (AC_CHECK_SIZEOF): Cast sizeof to unsigned
	long, to work around a bug in the HP C compiler version HP92453-01
	B.11.11.23709.GP.

	* lib/m4sugar/m4sh.m4 (AS_DIRNAME): Use 'dirname' if that works.
	(AS_BASENAME_EXPR): New macro.
	(AS_BASENAME_SED): Do not assume GNU sed semantics.
	(AS_BASENAME): Use 'basename' if that works; then try 'expr';
	and fall back on 'sed' only if the other two fail.  This makes
	AS_BASENAME act more like AS_DIRNAME.
	(as_me): Shell-quote the argument of AS_BASENAME, in case $0
	contains white space.
	* lib/autoconf/general.m4 (_AC_INIT_SRCDIR):
	Use AS_DIRNAME, since I think it's now DOS-friendly.
	* tests/m4sh.at (DIRNAME_TEST): New arg $3.
	Allow "dirname //FOO" to return either / or //, as POSIX allows
	either behavior.

2001-10-10  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Recognize
	`a_out.exe' for OpenVMS 7.1, DEC C 5.5 compiler, via GNV.
	From Eric Sharkey.

2001-10-10  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (_AS_ECHO_N_PREPARE): m4_defun, not
	m4_define, since...
	(_AS_ECHO_N): AS_REQUIREs it.

2001-10-10  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INCLUDES_DEFAULT_REQUIREMENTS)
	(AC_INCLUDES_DEFAULT): Move to...
	* lib/autoconf/headers.m4: here.
	* lib/autoconf/types.m4: Comment changes.
	* doc/autoconf.texi: Specify where the default includes are used
	in the macro prototypes.

2001-10-09  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autoconf.m4 (m4_patsubst, m4_regexp): New
	transition code.

2001-10-08  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (&autoreconf): Remove debugging code.
	(&parse_args): Pass verbosity/debugging options to subtools when
	--debug, not when --verbose.
	* lib/autom4te.in (Autoreconf-preselections): New.
	(Autoconf): Use it.

2001-10-08  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in (autoreconf): Run libtoolize when appropriate.

2001-10-08  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (autoreconf Invocation): Adjust.
	* bin/autoreconf.in (autoreconf): Run gettextize when appropriate.

2001-10-08  Akim Demaille  <akim@epita.fr>

	* tests/tools.at (AT_CHECK_PERL_SYNTAX): Check autoreconf.
	(Syntax of the shell scripts): Don't.
	* bin/autoheader.in, bin/autom4te.in, bin/autoreconf.in: Don't
	bother with $force since...
	* lib/Autom4te/General.pm: does.

2001-10-08  Akim Demaille  <akim@epita.fr>

	* bin/autoreconf.in: Rewrite in Perl.
	* configure.ac: Adjust.
	* lib/Autom4te/General.pm (&up_to_date_p): New.
	* bin/autom4te.in (&up_to_date_p): Use it.
	Rename as...
	(&up_to_date): this.

2001-10-08  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sugar.m4 (m4_case, m4_bmatch, m4_normalize)
	(m4_list_cmp): Use $0 to reinvoke yourself.
	(m4_patsubsts): New.
	(m4_strip, m4_version_unletter): Use it.
	* tests/atspecific.m4 (AT_DATA_M4SUGAR, AT_DATA_M4SH): Likewise.

2001-10-08  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autoconf.m4, lib/autoconf/general.m4,
	* lib/autoconf/libs.m4, lib/autoconf/status.m4,
	* lib/autoconf/types.m4, lib/autotest/general.m4,
	* lib/m4sugar/m4sh.m4, lib/m4sugar/m4sugar.m4, tests/atspecific.m4,
	* tests/torture.at: Rename m4_regexp, m4_patsubst, and m4_match to
	m4_bregexp, m4_bpatsubst, and m4_bmatch.
	* doc/autoconf.texi (Redefined M4 Macros): Adjust.

2001-10-08  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4: Use AS_REQUIRE.

2001-10-08  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (AS_DIRNAME_EXPR): Use AS_REQUIRE.
	* tests/tools.at (AT_DATA_FORBIDDEN): Rename/move/duplicate to...
	* tests/atspecific.m4 (AT_DATA_M4SUGAR, AT_DATA_M4SH): here.
	* tests/tools.at, tests/m4sh.at: Use it.
	* tests/m4sh.at: Don't rely on Autoconf macros.
	(DIRNAME_TEST): Also exercise the expr variant.
	* tests/m4sugar.at, tests/atspecific.m4 (AT_CHECK_M4SUGAR): The
	preferred M4sugar extension is now `.4s'.
	* tests/README: Remove.

2001-10-08  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sugar.m4 (m4_provide_ifelse): Rename as...
	(m4_provide_if): this.
	* lib/m4sugar/m4sh.m4 (AS_REQUIRE): New.
	* lib/autoconf/general.m4 (AS_DEFUN, AC_DEFUN_ONCE, AC_BEFORE)
	(AC_REQUIRE, AC_PROVIDE, AC_PROVIDE_IFELSE): Be exact copy of the
	M4sugar peer, i.e., drop the `AC_PROVIDE_$1' broken marker.

2001-10-08  Akim Demaille  <akim@epita.fr>

	Use `add-log-current-defun-function' for ChangeLog creation.
	Suggested by Tom Tromey.

	* lib/emacs/autotest-mode.el (autotest-mode-map): New.
	(autotest-mode): Adjust.
	* lib/emacs/autoconf-mode.el (autoconf-mode-map): Modernize, map
	'comment-region onto `C-c ;'.
	Comments are `#', not `dnl'.
	(autoconf-current-defun): New.
	(autoconf-font-lock-keywords): Recognize `m4_defun'.

2001-10-08  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_m4_divert(BODY)): Move to...
	* lib/m4sugar/m4sh.m4: here.
	(AS_INIT): Push the BODY diversion, set the #! /bin/sh line.
	* lib/autoconf/general.m4 (AC_PLAIN_SCRIPT) : Remove.
	(AT_INIT): Replace AC_PLAIN_SCRIPT with AS_INIT invocation,
	include handle the m4_pattern_*, no longer push the
	BODY diversion nor set the /bin/sh line, AS_INIT does it.
	* lib/autotest/general.m4 (AT_INIT): Likewise.
	* tests/base.at: Adjust the tests to use AS_INIT.
	* tests/tools.at (AT_DATA_FORBIDDEN): New.
	(autoconf: forbidden tokens): Adjust to work on M4sh instead of
	Autoconf.

2001-10-07  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (config.status Invocation):
	CONFIG_SHELL defaults to a shell that supports LINENO if available.

	* lib/m4sugar/m4sh.m4 (_AS_LINENO_PREPARE): If the current
	shell does not support LINENO, and if CONFIG_SHELL is unset or
	empty, and if we can find a shell that does support LINENO,
	then set CONFIG_SHELL to that shell and then re-execute
	ourselves with CONFIG_SHELL.

2001-10-05  Paul Eggert  <eggert@twinsun.com>

	* tests/Makefile.am (clean-local): Don't invoke $(TESTSUITE) if it
	doesn't exist.  Remove *.tmp, as a .tmp file is created during the
	build of $(TESTSUITE).

2001-10-05  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (_AS_LINENO_PREPARE): Look in the path
	iff we are a bareword.
	Reported by Raja R Harinath.

2001-10-05  Akim Demaille  <akim@epita.fr>

	* tests/m4sh.at (LINENO): New.
	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Be sure to set
	PATH_SEPARATOR before using it.
	Fix the absolute path case/esac pattern.
	Provide $0 as fallback for as_myself.
	Reported by Raja R Harinath.

2001-10-05  Akim Demaille  <akim@epita.fr>

	* Makefile.am, config/Makefile.am, lib/emacs/Makefile.am,
	* m4/Makefile.am, man/Makefile.am: Add/adjust MAINTAINERCLEANFILES.

2001-10-05  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (_AS_LINENO_PREPARE): New, extracted from...
	(AS_SHELL_SANITIZE): here.  Use it.
	(_AS_LINENO_PREPARE): Preserve the exit status of $0.lineno.
	From Paul Eggert.

2001-10-04  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Use a portable
	combination of Awk and sed to replace $LINENO.

2001-10-02  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Limitations of Builtins): You can't use
	"source"; it's not portable.  Remove confusing and
	somewhat-incorrect example involving "." and "/".

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): "source" -> ".", for
	compatibility with POSIX shells.

2001-10-02  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Just source 40.lineno
	instead of exec'ing to preserve $0 and $@.

2001-10-01  Akim Demaille  <akim@epita.fr>

	* tests/testsuite (AT_INIT) <at_pass_list>: New.
	Don't run twice the same test.

2001-10-01  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT) <--help>: Catch up with reality.
	No longer output the list of tests.
	<--list>: New option.
	<--full-help>: Remove.
	Complete the short/long options duality.
	Various small adjustments.

2001-10-01  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: Use @kbd for user input.
	Always use `$' as shell prompt.

2001-09-30  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/status.m4 (AC_OUTPUT_MAKE_DEFS):
	Don't use nested parenthesization.  This patch was originally
	suggested to bug-autoconf by Philippe De Muyter on 2000-05-28,
	but somehow it didn't get incorporated then.
	* doc/autoconf.texi (Limitations of Usual Tools):
	Clarify remark about sed and nested parenthesization.

	* lib/autoconf/types.m4 (AC_CHECK_SIZEOF):
	Report an error if the size cannot be determined even though
	the type exists.
	* lib/autoconf/general.m4 (_AC_COMPUTE_INT_COMPILE):
	Check for `expr' arithmetic overflow, and for compilation failure,
	and invoke a new argument $4 if either is discovered.
	This makes _AC_COMPUTE_INT_COMPILE more like _AC_COMPUTE_INT_RUN.
	(_AC_COMPUTE_INT): Pass IF-FAILS arg to _AC_COMPUTE_INT_COMPILE.

2001-09-28  Akim Demaille  <akim@epita.fr>

	* lib/emacs/autoconf-mode.el, lib/emacs/autotest-mode.el: New.
	* m4/lispdir.m4: New.
	* aclocal.m4, configure.ac: Adjust.

2001-09-28  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_VICTIMS): Rename as...
	(AT_TESTED): this.
	(AT_INIT): More the wrapped section to where it will be expanded.
	Output `AT_tested' only when existing.
	Catch unexpanded PACKAGE_STRING and PACKAGE_BUGREPORT.

2001-09-27  Akim Demaille  <akim@epita.fr>

	Fix the passing of $? to ACTION-IF-FAILED in AC_TRY_RUN, that
	generates too many bug reports.

	* lib/autoconf/general.m4 (_AC_RUN_IFELSE): Pass the right exit
	status when executing the ACTION-IF-FALSE.
	* tests/base.at (AC_TRY_*): Rename as...
	(AC_TRY_COMMAND): this.
	(AC_RUN_IFELSE): New.
	* tests/compile.at (Extensions, C keywords)
	(AC_PROG_CPP requires AC_PROG_CC, GNU Fortran 77)
	(Broken/missing compilers, AC_PROG_CPP with warnings)
	(AC_PROG_CPP without warnings, AC_PROG_CPP via CC): Move to...
	* tests/c.at (Extensions, C keywords)
	(Broken/missing compilers, AC_PROG_CPP with warnings)
	(AC_PROG_CPP without warnings, AC_PROG_CPP via CC)
	(AC_PROG_CPP requires AC_PROG_CC): here and...
	* tests/fortran.at (GNU Fortran 77): there.
	* doc/autoconf.texi (autoconf Invocation): Fix the example:
	AC_TRY_RUN is about compilation, not shell commands.
	(Test Programs): AC_TRY_RUN works as used to be advertised.

2001-09-27  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Fix bugs spotted by
	Raja R Harinath:
	Be sure to detect when $LINENO always returns the same value.
	Look for the original script, basename($0) is certainly not
	enough.
	Pass the CLI arguments to `$as_me.lineno'.

2001-09-25  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Dump the whole config.log.
	Be sure the close and reopen the LOG fd before and after using tee
	to extend the log.
	<at_tests_pattern>: Adjust to the new format of at_help_all.

2001-09-23  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (parse_args): There can be several invocations
	of --language now.

2001-09-23  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Top): Wrap in @ifnottex.

2001-09-23  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_SRCPATHS): Compute and provide
	ac_buildpath, ac_top_buildpath, ac_srcpath, and ac_top_srcpath.
	(_AC_OUTPUT_FILES): Also substitute srcpath, top_srcpath,
	builddir, buildpath, top_builddir, and top_buildpath.
	(_AC_OUTPUT_SUBDIRS): Compute the dir variables *before* changing
	the current directory.
	* lib/autoconf/general.m4 (_AC_INIT_HELP): Compute the dir
	variables *before* changing the current directory.
	Skip nonexistent dirs.
	* doc/autoconf.texi (Preset Output Variables): Document these
	variables.

	* lib/autotest/general.m4: Do not reset AT_victims.
	Don't compute at_srcdir nor at_top_srcdir.

	* tests/tools.at: Hence use top_srcdir.

	* tests/Makefile.am, tests/autoconf, tests/autoheader,
	* tests/autom4te, tests/autoreconf, tests/autoupdate, tests/ifnames:
	Remove.
	* tests/autoreconf.in, tests/wrappl.in, tests/autom4te.in,
	* tests/wrapsh.in, tests/autoupdate.in: New.
	* tests/Makefile.am (DISTCLEANFILES, EXTRA_DIST): Adjust.
	* configure.ac: Build the position independent wrappers.

	* man/Makefile.am: Now that test wrappers are position
	independent, use them and drop dark envvar magic.

2001-09-23  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Common Shell Constructs): Rename as...
	(Programming in M4sh): this.
	Promote to @section.

2001-09-23  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Dump config.log last.
	Pass $at_debug_args to the rerun test suite.
	* lib/m4sugar/Makefile.am (DISTCLEANFILES): New.
	* bin/Makefile.am (ETAGS_SH): Don't use characters ranges.
	From Paul Eggert.

2001-09-23  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (@my_warning): Remove, handled by `autom4te.cfg'.

2001-09-23  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Fix shell
	over-escaping.

2001-09-23  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (&debug): New.
	* bin/autom4te.in ($language): Move to...
	(parse_args): here.
	Handle --language in languages.
	* lib/autom4te.in (Automake-selections, Autoheader-selections)
	(Autoscan-selections): New.
	(Autoconf): Adjust.

2001-09-23  Tim Van Holder  <tim.van.holder@pandora.be>

	* m4/auxdir.m4, m4/cond.m4, m4/depend.m4, m4/init.m4,
	* m4/install-sh.m4, m4/missing.m4, m4/sanity.m4, m4/strip.m4: Updated
	to match current versions from CVS Automake.

2001-09-23  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* doc/autoconf.texi (Special Shell Variables): Add pdksh output
	for $LINENO.

2001-09-22  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autotest.m4: Create `package.m4'.
	* tests/Makefile.am (package.m4): Remove.

2001-09-22  Akim Demaille  <akim@epita.fr>

	Rely on `$LINENO' when possible instead of `__oline__'.

	* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Provide some form of
	`$LINENO' support replacement when not supported.
	(_AS_CR_PREPARE, _AS_TR_CPP_PREPARE, _AS_TR_SH_PREPARE): Invoke
	them explicitly to be sure they are not output before this section
	(via m4_require).  Cosmetic only.
	* lib/autoconf/c.m4, lib/autoconf/general.m4,
	* lib/autoconf/programs.m4: Replace all the occurrences of
	`__oline__' with `$LINENO'.
	* doc/autoconf.texi (Special Shell Variables): Document LINENO.

2001-09-21  Tim Van Holder  <tim.van.holder@pandora.be>

	* lib/autoconf/functions.m4 (_AC_FUNC_FORK): Replaceded an 8-bit
	character (u: -> ue) in a code comment.
	(AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK): Only run 'ln -s' if we know
	it works.

2001-09-21  Akim Demaille  <akim@epita.fr>

	* Makefile.maint (AUTOM4TE): Neutralize autom4te.
	Suggested by Jim Meyering.

2001-09-20  Tim Van Holder  <tim.van.holder@pandora.be>

	* lib/autoconf/programs.m4: Use extensions listed in
	$ac_executable_extensions when looking for programs.

2001-09-20  Tim Van Holder  <tim.van.holder@pandora.be>

	* lib/autoconf/general.m4: Fix a small Englisho.
	* lib/autoconf/status.m4: Fix a small typo.  Handle DOS paths when
	setting up ac_dir_suffix and ac_top_builddir.
	* lib/m4sugar/m4sh.m4: Default CDPATH to $PATH_SEPARATOR, not ':'.

2001-09-20  Tim Van Holder  <tim.van.holder@pandora.be>

	* doc/autoconf.texi (File System Conventions): Clarify the use of
	PATH_SEPARATOR.
	(Special Shell Variables[PATH_SEPARATOR]): Ditto.
	(Special Shell Variables[CDPATH]): Mention that $PATH_SEPRATOR should
	be used instead of ':'.
	* lib/autotest/general.m4: Replace occurrences of ':' in
	AUTOTEST_PATH with $PATH_SEPARATOR at test suite startup.

2001-09-20  Tim Van Holder  <tim.van.holder@pandora.be>

	* tests/atgeneral.m4: Add basic support for test ranges (e.g. 7-34) as
	arguments.  Fixed a typo.

2001-09-20  Tim Van Holder  <tim.van.holder@pandora.be>

	* man/Makefile.am (.x.1): Use @PATH_SEPARATOR@, not ':' to set up
	$PATH.  Also set AUTOM4TE_CFG, so we can process autom4te properly.

2001-09-20  Tim Van Holder  <tim.van.holder@pandora.be>

	* bin/autoscan.in: Add 'exec-perl-if-not-run-by-perl'.
	* bin/autoupdate.in: Ditto.
	* bin/autoheader.in: Reworded a few comments.
	* bin/autoconf.in: Reworded help text for a few options.
	* bin/autoheader.in, bin/autom4te.in, bin/autoreconf.in,
	* bin/autoscan.in, bin/autoupdate.in: Ditto.

2001-09-20  Tim Van Holder  <tim.van.holder@pandora.be>

	* lib/Autom4te/XFile.pm (open): Simplified the error message (we
	already have $file).  Set output files to binary mode (helps avoid
	CR issues on DOSish systems).

2001-09-19  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4: Englishoes.
	From Tim Van Holder and Alexey Mahotkin.

2001-09-18  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Common Shell Constructs): New node,
	documenting AS_DIRNAME.
	(Limitations of Usual Tools): Refer to it when discussing dirname.
	Also, update discussion of POSIX standard to reflect latest draft.

	* lib/autoconf/c.m4:
	(AC_LANG_INT_SAVE(C)): Also support negative values, down to LONG_MIN.

	* lib/autoconf/general.m4 (_AC_COMPUTE_INT_COMPILE):
	Do not pass a first argument with leading '-'
	to expr, by parenthesizing initial integers that might be negative.

	* doc/autoconf.texi (Particular Functions): AC_FUNC_GETPGRP
	now merely checks whether it is an error to pass an argument
	to getpgrp.

	* lib/autoconf/functions.m4 (_AC_FUNC_GETPGRP_TEST): Remove.
	(AC_FUNC_GETPGRP): Don't bother with a runtime test.  Just check
	whether it is a (compile-time) error to pass an argument to
	getpgrp.  This simpler test supports the revised documentation,
	and is all that AC_FUNC_GETPGRP's users really need.

2001-09-18  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Limitations of Make) <$<>: New.

2001-09-18  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Limitations of Usual Tools) <find>: More about
	`{}'.
	* lib/autotest/general.m4 (AT_INIT): Adjust.

2001-09-18  Paul Wagland  <paul@wagland.net>

	* tests/m4sh.at: Ensure that AS_DIRNAME handles '/', '//' and '///'
	correctly.
	Add test for AS_BASENAME.
	* lib/m4sugar/m4sh.m4: Fix AS_BASENAME so that it passes the previous
	added test. It now correctly handles /1/2/3/, returning '3' not ''.
	Added AS_BASENAME_SED to make the interface the same as AS_DIRNAME.
	* tests/base.at: Fixed the expected responses. The old ones were
	one line out...
	* lib/autoconf/general.m4: Fixed AC_PREFIX_PROGRAM, it now behaves as
	the documentation claims it should (and how it behaved in 2.13).

2001-09-18  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): No INIT-CMDS in
	the AC_CONFIG_COMMANDS invocation.
	This also solves the name clash problems.
	Don't set the package's ID.
	* lib/m4sugar/Makefile.am (version.m4): Revamp.
	No longer to be shipped.
	(version.in): Remove.
	* lib/m4sugar/m4sugar.m4, lib/autoconf/general.m4,
	* lib/autoconf/status.m4: Adjust.
	Use `m4_PACKAGE_STRING'.
	* lib/autotest/general.m4 (AT_INIT): N-th signature change: now
	the only optional argument is the name of the test suite.
	Expect `package.m4' to define the package signature.
	* lib/autom4te.in (Autotest): Add `package.m4?'.
	* tests/Makefile.am (package.m4): New.
	* tests/suite.at: ifnames is a victim.

2001-09-18  Akim Demaille  <akim@epita.fr>

	* lib/autom4te.in (Autoconf): Preselect AM_CONDITIONAL,
	AC_LIBSOURCE, AC_CONFIG_FILES.
	* lib/autotest/general.m4 (AT_INIT): Don't abort when a tested
	program version string doesn't match the package's.
	* lib/autoconf/general.m4 (AC_CACHE_VAL): Reestablish the space
	after `(cached)'.

2001-09-17  Paul Eggert  <eggert@twinsun.com>

	* lib/autoconf/c.m4: (AC_LANG_INT_SAVE(C)):
	Allow expression to return any value that can fit into unsigned long
	(not int, as before).  Check for output errors.

2001-09-17  Bruno Haible  <haible@ilog.fr>

	* lib/autoconf/c.m4: (AC_LANG_INT_SAVE(C)):
	Always include <stdio.h> and <stdlib.h>. Evaluate
	the expression in an extra function before these includes. Call
	fprintf "%d" only after ensuring the argument is of type 'int'.
	Reported by Wayne Chapeskie <waynec@spinnaker.com>.

2001-09-17  Paul Eggert  <eggert@twinsun.com>

	Fix bug reported by Paul Townsend on AIX 4.3.3.0 with CFLAGS=-O4
	or CFLAGS=-O5.  In that case, the linker has a relaxed view of
	fatal errors, and AC_CHECK_LIB causes it to include libraries even
	when they don't exist.

	* lib/autoconf/headers.m4 (AC_HEADER_DIRENT): Use AC_SEARCH_LIBS,
	not AC_CHECK_LIB, so that we don't use -ldir or -lx if we don't
	need it.

	* lib/autoconf/specific.m4 (AC_ISC_POSIX): Replace the old, crufty
	version with the version used by fileutils 4.1, except use
	AC_SEARCH_LIBS, not AC_CHECK_LIB, so that we don't use -lcposix if
	we don't need it.

	* doc/autoconf.texi (AC_ISC_POSIX): Describe new behavior.

2001-09-13  Akim Demaille  <akim@epita.fr>

	* tests/base.at, tests/m4sh.at: Be sure to issue the bangshe line
	_first_.
	Reported by Gerrit P. Haase.

2001-09-13  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Reset `AT_victims' so that
	m4_defn'ing is valid.

2001-09-13  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sugar.m4 (m4_append_uniq): New.
	* lib/autotest/general.m4 (AT_VICTIMS, AT_KEYWORDS, _AT_CLEANUP_FILE):
	Use it.

2001-09-13  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sugar.m4 (_AS_QUOTE_IFELSE, _AS_BOX_INDIR): Use
	m4_match.
	(m4_re_escape): New.
	* lib/autoconf/status.m4 (AC_CONFIG_IF_MEMBER): Use it.
	* lib/autoconf/general.m4 (AC_CACHE_SAVE): Use m4_match.
	* lib/autoconf/status.m4 (AC_CONFIG_IF_MEMBER, AC_CONFIG_LINKS):
	Likewise.
	* lib/autoconf/types.m4 (_AC_CHECK_TYPE_REPLACEMENT_TYPE_P)
	(_AC_CHECK_TYPE_MAYBE_TYPE_P, AC_CHECK_MEMBER): Likewise.
	* lib/autotest/general.m4 (AT_INIT): Rename AT_TESTS_ALL as
	AT_tests_all for consistency.
	Set at_victims.
	(AT_VICTIMS): Similar to AT_KEYWORDS.
	(_AT_CLEANUP_FILE_IF): Use m4_match and m4_re_escape.

2001-09-13  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Fix stupid bugs.

2001-09-13  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Create and remove
	`$as_me.[0-9]+' instead of `debug-[0-9]+.sh', so that multiple
	test suites can cohabit.

2001-09-13  Akim Demaille  <akim@epita.fr>

	* tests/mktests.sh: Don't output banners for empty test files.

2001-09-13  Akim Demaille  <akim@epita.fr>

	Test suites can be run independently of configure.

	* lib/m4sugar/m4sh.m4 (_AS_ECHO, _AS_ECHO_N_PREPARE): New.
	* lib/autoconf/programs.m4 (_AC_PROG_ECHO): Remove.
	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Adjust: AC_SUBST
	ECHO_N etc.
	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): Don't ask for at_n
	and at_c.
	* lib/autotest/general.m4: Use ECHO_*.

2001-09-13  Akim Demaille  <akim@epita.fr>

	* bin/ifnames.in: Rewrite in Perl.
	* configure.ac: Don't look for AWK.
	* tests/tools.at (AWK portability): Remove.
	(Syntax of the shell scripts): Don't check ifnames.
	(AT_CHECK_PERL_SYNTAX): New.
	(Syntax of the Perl scripts): Check ifnames.
	* tests/ifnames: New.

2001-09-13  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Let --keywords also match
	test group titles.
	* tests/atspecific.m4 (AT_CHECK_AU_MACRO): AT_KEYWORDS(autoupdate).
	Remove all the other keywords.

2001-09-10  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Remove the diversion HELP and
	SETUP: no longer used.
	Support -k, --keywords.
	<at_help>: Be `no', `short', or `long'.
	<at_help_all>: New variable.
	(AT_KEYWORDS): New.
	(AT_CLEANUP_FILE_IFELSE, AT_CLEANUP_FILE): Rename as...
	(_AT_CLEANUP_FILE_IF, _AT_CLEANUP_FILE): these.
	(_AT_CLEANUP_FILE_IF): Simplify the regexp.
	(AT_SETUP): Reset AT_line, AT_keywords, AT_description.
	No longer fill the HELP diversion.
	(AT_CLEANUP): Use them.
	* lib/m4sugar/m4sugar.m4 (m4_append): Support a separator.
	(m4_list_append): Remove.

	Spread a few keywords in the Autoconf test suite.

2001-09-10  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): Don't pass
	PATH_SEPARATOR, let M4sh compute it.
	* lib/m4sugar/m4sh.m4 (_AS_PATH_SEPARATOR_PREPARE): New.
	* lib/autoconf/programs.m4 (AC_SHELL_PATH_WALK): Use PATH_SEPARATOR.
	Move to...
	* lib/m4sugar/m4sh.m4 (_AS_PATH_WALK): Here.
	Simplify when the path is not a literal.
	(AS_UNAME): Use it to report PATH.
	* lib/autoconf/general.m4 (_AC_INIT_PREPARE_FS_SEPARATORS): Remove.
	(_AC_INIT_DEFAULTS): AC_SUBST PATH_SEPARATOR.
	* lib/autoconf/programs.m4 (AC_PROG_INSTALL): Use _AS_PATH_WALK.
	* lib/autotest/general.m4 (AT_INIT): Use _AS_PATH_WALK to
	normalize the path, and to look for victims.
	* tests/semantics.at (AC_PATH_PROG & AC_PATH_PROGS)
	(AC_CHECK_PROG & AC_CHECK_PROGS): Use PATH_SEPARATOR.

2001-09-07  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&handle_m4): `< /dev/null' so that GNU M4 1.5
	doesn't neutralize SIGINT, making autoconf etc. non interruptible.
	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): Move the package
	related variables into `at_package_*'.
	* lib/autotest/general.m4 (AT_VICTIMS): New.
	(AT_INIT): Adjust for stand-alone/embedded test suites.
	(AS_MESSAGE_LOG_FD): Define and use it.
	* tests/suite.at (AT_VICTIMS): Use it.
	* tests/tools.at (autoupdating AC_PREREQ): Don't depend upon
	at_version.

2001-09-07  Akim Demaille  <akim@epita.fr>

	Move toward possibly stand-alone test suites.

	* lib/autotest/general.m4: Stop displaying srcdir everywhere as,
	in addition, it introduces useless differences in logs.
	(AT_INIT): Let atconfig and atlocal be both optional.
	Adjust PATH computation.
	* lib/m4sugar/m4sh.m4 (AS_UNAME): More readable display of PATH.

2001-09-07  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/Makefile.am (autoconf.m4f): Depends upon
	m4sugar/version.m4.

2001-09-05  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/c.m4 (AC_LANG_BOOL_COMPILE_TRY(C)): Use `_array_'
	to avoid GCC warnings.
	From Uwe Seimet.

2001-09-05  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in: --language is -l, not -s.

2001-09-05  Akim Demaille  <akim@epita.fr>

	Be ready to handle filenames as stupid as `dnl.at', for if even
	the maintainer is dumb enough to do that...

	* lib/autotest/general.m4 (AT_SETUP, AT_LINE): Demonstrates your
	excellence in M4 quotation: consider `__file__' is active.

	And BTW, when invoking m4, pass the --include in the right order:
	the wrong one.

	* bin/autom4te.in, bin/autoupdate.in: Use reverse when kingtal to
	4m.

2001-09-05  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/XFile.pm: New lib file.
	* bin/autoupdate.in, bin/autoscan.pl, bin/autom4te.in,
	* bin/autoheader.in: Use it.

2001-09-05  Akim Demaille  <akim@epita.fr>

	* bin/autoupdate.in (&handle_m4_macros) <unm4.m4>: Undefine iff
	defined.

2001-09-05  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (&getopt): Work around the `-' Getopt bug.
	* bin/autoheader.in, bin/autoupdate.in (&parse_args): Adjust.

	* bin/autoscan.in: Use `getopt' and `find_files' etc.
	Add -I, --include support.
	* doc/autoconf.texi (autoscan Invocation): Adjust.

2001-09-05  Akim Demaille  <akim@epita.fr>

	CVS GNU M4 doesn't like `undefine(undefined)'.

	* bin/autoupdate.in (&handle_m4_macros, &handle_autoconf_macros):
	New, extracted from main.
	Use IO::File wherever possible.
	(input.m4): Be constant, use -I instead of hard coding $tmp.
	Therefore be a quoted heredoc.
	Don't invoke `_au_disable', since ac was not loaded, but just
	`unm4.m4'.

2001-08-31  Akim Demaille  <akim@epita.fr>

	Version 2.52d.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Fix the
	previous patch.
	* tests/atspecific.m4 (AT_CHECK_AUTOHEADER): Can create `config.hin~'.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): DU 5.0 has
	serious problems handling heredocs in heredocs.
	Reported by Nicolas Joly.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: Don't promote non `m4_*' M4 macros.
	(Making testsuite Scripts): Update.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* lib/Makefile.am (CLEANFILES): Add autom4te.cfg.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Quadrigraphs): Document `@&t@'.
	(testsuite Scripts): There is no such thing as `atconfig.in'.
	And actually one diagram is missing: test suite runtime.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (&find_file): Browse the includes in the
	inverse order.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* bin/autoupdate.in (@include): `installcheck' revealed the path
	to m4sugar was lacking!

2001-08-31  Akim Demaille  <akim@epita.fr>

	* man/Makefile.am (.x.1): We really have to pass
	autom4te_perllibdir.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Don't pass all the args to
	debug scripts, in particular passing explicitly listed tests to
	run is stupid.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&parse_args): Strip `.' from `@include'.
	* bin/autoupdate.in: Use --include, -I, and --force, -f, too.
	Use directly autom4te, not autoconf.
	* tests/autoupdate: $top_srcdir/lib is needed too for melt files.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* tests/semantics.at (AC_C_BIGENDIAN): Missing eol.
	* bin/autoheader.in (%symbol): Strip arguments of macros.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: Catch up -I, --include changes.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&parse_args): Die on unknown languages.
	* bin/autoheader.in: Run directly autom4te --mode=autoconf, no
	need for autoconf.
	Promote --include over --macrodir and other obsolete options.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm ($version, $help, &getopt): New.
	* bin/autoupdate.in, bin/autoheader.in, bin/autom4te.in: Use them.
	* bin/autom4te.in ($autoconf): Pass --force.
	`print $out' doesn't print `$_' but `$out'.
	* tests/tools.at (Syntax of the Perl scripts): Pass the lib dir.
	(autoheader): Pass --force since the test suite goes too fast for
	the time stamps.
	Adjust to the new autoheader messages.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* bin/autoheader.in: Handle the acconfig.h etc. junk files.
	Check the completeness of the #template.
	* lib/Autom4te/General.pm (&update_file): s/remove/unlink/.
	* tests/semantics.at (AC_C_BIGENDIAN): Adjust AT_CHECK_AUTOHEADER
	invocation.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (&find_file, &update_file): New.
	* bin/autoupdate.in, bin/autoheader.in: Adjust.
	Drop AC_MACRODIR dead for real.
	* tests/atspecific.m4 (AT_CHECK_AUTOHEADER): Now autoheader says
	`autoheader: `config.hin' is created'.
	* tests/tools.at (Syntax of the Perl scripts): Check autoheader.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* bin/autoheader.in: Rewrite in Perl.
	* tests/autoheader: Adjust.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* bin/autoconf.in (--include, -I): New option.
	Map --localdir, --autoconf-dir onto it.
	Forward autom4te's options instead of interpreting them.
	* bin/autoconf.in, bin/autoheader.in (AC_MACRODIR, autoconf_dir):
	There is no such envvar since the inception of autom4te.cfg.
	* bin/autom4te.in (&parse_args): Uniquify `@include'.
	* bin/autoupdate.in: Adjust, and perform more control.
	* tests/atspecific.m4 (AT_CHECK_AUTOCONF): Adjust.
	* tests/autoconf: Dittowise.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* bin/autoconf.in: Don't bother with `acsite.m4' and `aclocal.m4'.
	* bin/autom4te.in (&find_file): Support `FILE?' standing for
	optionally `FILE'.
	Use -e, not -f, since /dev/null for instance is OK.
	(&parse_args): Adjust.
	* lib/autom4te.in (Autoconf): Add `acsite.m4?' and `aclocal.m4?'.

2001-08-31  Akim Demaille  <akim@epita.fr>

	* configure.ac: Also find tested executables in bin.
	* bin/autoconf.in, bin/autoheader.in, bin/autoreconf.in,
	* bin/autoscan.in, autoupdate.in: Use exclusively the name of the
	installed peer executables, only PATH is allowed to resolve it.
	Pass `autoconf_dir' via options, not via invisible envvars.
	* lib/Autom4te/General.pm (&find_peer): Remove.
	* lib/autotest/general.m4 (AT_INIT): `AUTOTEST_PATH=a:b' gives
	`abuild:asrc:bbuild:bsrc', not `abuild:bbuild:asrc:bsrc'.
	* man/Makefile.am: Let help2man rely on PATH instead of trying to
	find the executables for it.
	* tests/Makefile.am: Major cleanup.  Too lazy to document...
	* tests/atlocal.in: Remove all the obscure envvar manipulations.
	We only need PERL.
	* tests/atspecific.m4, tests/tools.at: Passing --localdir is
	indeed related to running the test suite, while passing
	--autoconf-dir and others is related to running non installed
	Autoconf executables.  So don't do that, leave it to...
	* tests/autoconf, tests/autoheader, tests/autom4te, tests/autoupdate,
	* tests/autoscan: New.
	* tests/atspecific.m4 (AT_CHECK_M4SUGAR, AT_CHECK_M4SH): Don't
	refer to library files: rely on --language.

2001-08-29  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in, lib/autom4te.in, bin/autoconf.in:
	s/--set/--language/.

2001-08-29  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: Strip the @nodes.
	Suggested by Paul Eggert.
	(Initializing configure): Typo.

2001-08-29  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&handle_output): s/@__@/@&t@/.
	Suggested by Paul Eggert.

2001-08-29  Akim Demaille  <akim@epita.fr>

	* Makefile.maint (do-po-update): Wget refuses to overwrite files:
	download in a tmp dir.

2001-08-29  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4: s/AT-devnull/devnull/ since there are
	case insensitive OSes out there :(
	From Tim Van Holder.

2001-08-29  Akim Demaille  <akim@epita.fr>

	* lib/autom4te.in: New.
	* lib/Makefile.am (edit, autom4te.cfg): New.
	* bin/autom4te.in (BEGIN): Simplify.
	Rely on `AC_MACRODIR' in addition of `autom4te_perllibdir'.
	(&load_configuration): New.  Use it.
	(&parse_args): Support --mode, --set, and --melt.
	* bin/autoconf.in: Simplify and adjust.
	* tests/Makefile.am (AUTOMAKE): Use --set.
	* tests/atlocal.in: Adjust.
	* BUGS: distcheck and check are weak.

2001-08-29  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4: Use
		foo=`(command) 2>/dev/null`
	not
		foo=`command` 2>/dev/null
	(at-devnull): Rename as...
	(AT-devnull): this.
	(--clean): Remove AT-* files too.
	* doc/autoconf.texi (Limitations of Usual Tools): Document `date'.
	Reported by Nicolas Joly.

2001-08-28  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Don't use single
	quotes inside single quotes.
	Reported by Nicolas Joly.

2001-08-28  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (Function Portability): Mention C right shifts.

2001-08-27  Tim Van Holder  <tim.van.holder@pandora.be>

	* lib/autotest/general.m4: Reword some messages.
	(AT_INIT): Check for the `times' builtin before using it.
	Support test ranges as arguments to the testsuite.
	Have -e imply -d as the help text suggested.

2001-08-27  Akim Demaille  <akim@epita.fr>

	* Makefile.maint: Formatting changes.
	(do-po-update, po-update, cvs-update, update): New targets.
	(AMTAR): Remove.

2001-08-27  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT) <at_cmd_line>: Remove.
	<at_cmd_line>: New.
	Pass it to debug-*.sh scripts.
	<AUTOTEST_PATH>: May contain absolute dir names.

2001-08-27  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Log the command line.
	Support `VAR=VAL' as arguments.
	Compute PATH _after_ the options processing, so that AUTOTEST_PATH
	may be set via the command line.

2001-08-27  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): $2 defaults to $1.
	* lib/autotest/autotest.m4 (AT_INIT): Expand AUTOTEST_PATH into
	first the build dirs, then the src dirs.
	* configure.ac (AC_CONFIG_TESTDIR): Adjust.

2001-08-27  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Output the definition of
	at_data_files earlier.
	(--clean, -c): New option.
	* tests/Makefile.am: Use this option.

2001-08-27  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_SRCPATHS): Rename `ac_dots' as
	`ac_top_builddir' to mimic Automake's vocabulary, which much more
	readable.
	Adjust callers.
	* doc/autoconf.texi (Configuration Actions): Document the vars
	available in commands.
	Emphasize the risks of collisions in init-cmds.

2001-08-27  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Input) <AC_INIT>: Move to..
	(Initializing configure): this new node.

2001-08-27  Akim Demaille  <akim@epita.fr>

	* Makefile.am (EXTRA_DIST): INSTALL.txt is a dead hack.

2001-08-27  Akim Demaille  <akim@epita.fr>

	* m4/atconfig.m4 (AT_CONFIG): Remove, replaced by...
	* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): this.
	New file.
	* m4/Makefile.am (EXTRA_DIST): Oops, adjust...

2001-08-27  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (AU_DEFINE, AU_DEFUN, AU_ALIAS): Move
	to...
	* lib/autoconf/autoheader.m4: this new file.
	* lib/autoconf/general.m4 (AH_OUTPUT, AH_VERBATIM)
	(_AH_VERBATIM_OLD, AH_TEMPLATE, _AH_TEMPLATE_OLD, AH_TOP, AH_BOTTOM):
	Move to...
	* lib/autoconf/autoupdate.m4: this new file.

2001-08-27  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/status.m4 (_AC_SRCPATHS): New.
	(_AC_OUTPUT_LINKS, _AC_OUTPUT_FILES, _AC_OUTPUT_SUBDIRS): Use it.
	Standardize the var names (ac_sub_srcdir -> ac_srcdir, ac_subdir
	-> ac_dir).
	(_AC_OUTPUT_HEADERS): AS_DIRNAME always return a dir name.
	* lib/autoconf/general.m4 (_AC_INIT_HELP): Ditto.

2001-08-27  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autoconf.m4 (AC_CONFIG_COMMANDS)
	(AC_CONFIG_COMMANDS_POST, AC_CONFIG_COMMANDS_PRE, AC_CONFIG_FILES)
	(AC_CONFIG_HEADER, AC_CONFIG_HEADERS, AC_CONFIG_IF_MEMBER)
	(AC_CONFIG_LINKS, AC_CONFIG_SUBDIRS, AC_FILE_DEPENDENCY_TRACE)
	(AC_LINK_FILES, AC_LIST_COMMANDS, AC_LIST_COMMANDS_COMMANDS)
	(AC_LIST_FILES, AC_LIST_FILES_COMMANDS, AC_LIST_HEADERS)
	(AC_LIST_HEADERS_COMMANDS, AC_LIST_LINKS, AC_LIST_LINKS_COMMANDS)
	(AC_OUTPUT, AC_OUTPUT_COMMANDS, AC_OUTPUT_COMMANDS_POST)
	(AC_OUTPUT_COMMANDS_PRE, AC_OUTPUT_MAKE_DEFS)
	(_AC_CONFIG_COMMANDS_INIT, _AC_CONFIG_DEPENDENCIES)
	(_AC_CONFIG_DEPENDENCY, _AC_CONFIG_UNIQUE, _AC_LINK_FILES_CNT)
	(_AC_LIST_SUBDIRS, _AC_OUTPUT_COMMANDS, _AC_OUTPUT_COMMANDS_CNT)
	(_AC_OUTPUT_COMMANDS_INIT, _AC_OUTPUT_CONFIG_STATUS)
	(_AC_OUTPUT_FILES, _AC_OUTPUT_HEADERS, _AC_OUTPUT_LINKS)
	(_AC_OUTPUT_SUBDIRS): Move to...
	* lib/autoconf/status.m4: this new file.
	* lib/autoconf/general.m4, lib/autoconf/Makefile.am: Adjust.
	* tests/Makefile.am, tests/suite.at: Adjust.

2001-08-27  Akim Demaille  <akim@epita.fr>

	Automake 1.5.

	* Makefile.am (AUTOMAKE_OPTIONS): Add 1.5 and dist-bzip2.
	(AMTAR): Help automake define it.
	(INSTALL, install-data-hook): The INSTALL.txt trick is no longer
	needed, 1.5 can have a macro and a target with the same name.
	* m4/auxdir.m4, m4/cond.m4, m4/depend.m4, m4/install-sh.m4,
	* m4/strip.m4: New.
	* m4/init.m4, m4/sanity.m4: Update.
	* doc/Makefile.am (CLEANFILES): 1.5 knows the texi2dvi files.
	* lib/autoconf/Makefile.am, lib/autotest/Makefile.am,
	* lib/m4sugar/Makefile.am, lib/autoscan/Makefile.am,
	* lib/Autom4te/Makefile.am, man/Makefile.am: Use dist/nodist.

2001-08-27  Akim Demaille  <akim@epita.fr>

	Provide a mean to ``AC_PREREQ'' for M4sugar, M4sh and Autotest.

	* lib/autoconf/version.in: Remove.
	* lib/m4sugar/version.in: New.
	* lib/m4sugar/m4sugar.m4 (m4_acversion, m4_version_prereq): New.
	Adjust callers.
	* bin/autoupdate.in: Distinguish M4sugar vs. Autoconf macros by
	the name of the directory they're in, instead of the filename,
	since version.m4 is now in m4sugar, but m4_acversion must not be
	classified as an Autoconf macro.
	($input_m4): Don't qualify the path to m4sugar.
	Rather, pass autoconf_dir to m4.
	* tests/Makefile.am (testsuite): Remove -I top_srcdir, unneeded.
	* tests/suite.at: Require 2.52c.

2001-08-27  Akim Demaille  <akim@epita.fr>

	testsuite.log should include config.log.

	* lib/autotest/autotest.m4: New.
	* lib/autotest/general.m4, tests/atspecific.m4:	Adjust.
	* tests/suite.at : Adjust.
	(AT_INIT): Log config.log.
	* lib/m4sugar/m4sugar.m4 (m4_text_box): New.
	* lib/m4sugar/m4sh.m4 (_AS_BOX_LITERAL): Adjust.
	* lib/autoconf/general.m4 (_AC_INIT_CONFIG_LOG): Use them.
	(_AC_INIT_PREPARE): Fix the incredibly messy and buggy completion
	of config.log on traps.
	(_AC_OUTPUT_CONFIG_STATUS): Use AS_BOX.
	Use consistently `_ACEOF' for configure's here docs, and `_CSEOF'
	for config.status'.
	Open the log as soon as possible.
	Use the same log introduction as configure's.

2001-08-22  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Indices): New node.
	Move indices out of the top level menu and into this submenu.

2001-08-22  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/programs.m4 (_AC_PROG_LEX_YYTEXT_DECL): Use
	AC_TRY_COMMAND.
	(AC_DECL_YYTEXT): Fix the previous patch: it points to AC_PROG_LEX.

2001-08-22  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (AC_SHELL_PATH_WALK, AC_CHECK_PROG)
	(AC_CHECK_PROGS, AC_PATH_PROG, AC_PATH_PROGS, AC_CHECK_TOOL_PREFIX)
	(AC_PATH_TOOL, AC_CHECK_TOOL, AC_CHECK_TOOLS): Move to...
	* lib/autoconf/programs.m4: here.
	* lib/autoconf/specific.m4 (_AC_PROG_ECHO, AC_PROG_MAKE_SET)
	(AC_PROG_RANLIB, AC_PROG_YACC, AC_PROG_LEX, _AC_DECL_YYTEXT)
	(AC_PROG_INSTALL, AC_PROG_LN_S, AC_RSH): Move to...
	* lib/autoconf/programs.m4: here.
	(_AC_DECL_YYTEXT): Rename as...
	(_AC_PROG_LEX_YYTEXT_DECL): this.
	* lib/autoconf/autoconf.m4, lib/autoconf/Makefile.am
	* tests/Makefile.am, tests/suite.am: Adjust.

2001-08-22  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (AC_LIST_MEMBER_OF, AC_LINKER_OPTION):
	Move to...
	* lib/autoconf/fortran.m4 (_AC_LIST_MEMBER_IF, _AC_LINKER_OPTION):
	here.
	* lib/autoconf/general.m4 (AC_TRY_LINK_FUNC): Move to...
	* lib/autoconf/functions.m4: here.
	* lib/autoconf/general.m4 (AC_SEARCH_LIBS, AC_CHECK_LIB)
	(AH_CHECK_LIB): Move to...
	* lib/autoconf/libs: this new file.
	* lib/autoconf/specific.m4 (_AC_PATH_X_XMKMF, _AC_PATH_X_DIRECT)
	(_AC_PATH_X, AC_PATH_X, AC_PATH_XTRA): Move to...
	* lib/autoconf/libs.m4: here.
	* lib/autoconf/autoconf.m4, lib/autoconf/Makefile.am: Adjust.

2001-08-22  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sh.m4 (AS_MKDIR_P): Fail if fails.
	* lib/autoconf/general.m4 (_AC_OUTPUT_SUBDIRS): Adjust.
	(AC_SITE_LOAD): Better logging of config.site.

2001-08-20  Akim Demaille  <akim@epita.fr>

	* configure.ac (AT_CONFIG): Fix the path.
	* m4/atconfig.m4 (AT_CONFIG): Don't use EOF but ATEOF so that 2.52
	can be used.

2001-08-20  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* lib/autoconf/c.m4 (AC_C_BIGENDIAN): Prepare the cross-compile
	program with AC_LANG_PROGRAM before feeding it to
	AC_COMPILE_IFELSE.  Cleanup grep usage.

2001-08-20  Akim Demaille  <akim@epita.fr>

	* ChangeLog, ChangeLog.0, ChangeLog.1, ChangeLog.2, AUTHORS, BUGS,
	* NEWS, README, README-alpha, TODO, tests/README: This package is
	`Autoconf', not `autoconf' (the executable).

2001-08-20  Akim Demaille  <akim@epita.fr>

	Info readers seem to need `Index' in the index node title :(

	* doc/autoconf.texi: Reverse the 2001-08-15 change which
	simplified index node names.

2001-08-20  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_INIT_PACKAGE): Warn if the
	arguments are not literals.
	* doc/autoconf.texi (Input) <AC_INIT>: Arguments must be literals.
	Specify the output variables, and macros defined.

2001-08-20  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Examining Declarations) <AC_TRY_CPP>:
	(Examining Syntax) <AC_TRY_COMPILE>
	(Examining Libraries) <AC_TRY_LINK>
	(Test Programs) <AC_TRY_RUN>: These macros double quote some of
	their arguments.
	Reported by Werner Lemberg.

2001-08-20  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Compute top_builddir,
	top_srcdir and srcdir from at_topbuild_2_topsrc and at_testdir.
	Load atlocal late enough to dump it in the log.
	* m4/atconfig.m4 (AT_CONFIG): Pass them to atconfig.

2001-08-20  Akim Demaille  <akim@epita.fr>

	* tests/torture.at (Configuring subdirectories): New test.
	* lib/autoconf/general.m4 (_AC_INIT_SRCDIR): Say what you are
	looking for.
	* m4/atconfig.m4: Be sure the let $[0] be expandable.
	(top_srcdir): Fix its computation.

2001-08-20  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/general.m4 (_AC_OUTPUT_COMMANDS): Say what you do.
	* m4/atconfig.m4 (AT_CONFIG): $1 is now the directory where the
	test suite lives.
	Create `atconfig' automagically.
	Configure atlocal.in if present.
	* tests/atconfig.in: Remove.
	* tests/atlocal.in: New.
	* tests/Makefile.am: Adjust.

2001-08-20  Akim Demaille  <akim@epita.fr>

	Huh!?!?!  There are still some user EOF tags used, which prevents
	their use in AC_CONFIG_COMMANDS for instance...

	* lib/autoconf/general.m4, lib/autoconf/specific.m4,
	* lib/autotest/general.m4: Rename the EOF tags as `_ACEOF',
	`_CSEOF', or `_ATEOF', as appropriate.
	* lib/m4sugar/Makefile.am, lib/autoconf/Makefile.am,
	* lib/autotest/Makefile.am (check-local): Enforce this constraint.

2001-08-20  Akim Demaille  <akim@epita.fr>

	* tests/base.at, tests/m4sh.at, tests/m4sugar.at,
	* tests/semantics.at, tests/tools.at, tests/torture.at:
	s/^AT_DATA\(([^][]+),/AT_DATA([$1],/.

2001-08-20  Akim Demaille  <akim@epita.fr>

	Autotest invokes M4sh's initialization.

	* lib/autotest/general.m4: Adjust the diversion names.
	(AT_INIT): Run AS_INIT.
	Use the BINSH diversion to invoke /bin/sh.
	* tests/base.at, tests/m4sh.at, tests/m4sugar.at, tests/tools.at:
	* tests/torture.at: Respect M4sugar and M4sh macro name spaces.

2001-08-20  Akim Demaille  <akim@epita.fr>

	Let M4sh have its own diversions.

	* lib/autoconf/general.m4 (_m4_divert(BINSH), _m4_divert(REVISION))
	(_m4_divert(NOTICE)): Rename as...
	* lib/m4sugar/m4msh.m4 (_m4_divert(BINSH), _m4_divert(HEADER-REVISION))
	(_m4_divert(HEADER-COMMENT)): these.
	(_m4_divert(HEADER-COPYRIGHT), _m4_divert(HEADER-COPYRIGHT)): New.
	(_m4_divert(NOTICE)): New, for Libtool.
	* lib/autoconf/general.m4 (_m4_divert(PREPARE)): Remove, replaced
	long ago with `_m4_divert(GROW)'.
	(AC_COPYRIGHT, AC_REVISION, _AC_INIT_NOTICE): Adjust.

2001-08-20  Akim Demaille  <akim@epita.fr>

	* tests/base.at, tests/compile.at, tests/foreign.at,
	* tests/m4sh.at, tests/m4sugar.at, tests/mktests.sh,
	* tests/semantics.at, tests/suite.at, tests/tools.at,
	* tests/torture.at: Ask Autotest mode, not Autoconf mode.

2001-08-20  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (handle_output): Handle @__@.

2001-08-20  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/autoconf.m4, lib/autoconf/oldnames.m4,
	* lib/autotest/general.m4: Adjust the license.

2001-08-17  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Function Portability): Mention snprintf,
	following up on a suggestion by Kevin Ryde.

2001-08-17  Akim Demaille  <akim@epita.fr>

	* doc/install.texi, doc/autoconf.texi: Use `autoconf', not
	`autoconf_manual', as texinfo.tex 2001-06-21.10 chokes on it.

2001-08-17  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Refer to `$as_me.log', not
	`$0.log' as for projects where testsuite is in src, we'd have
	testsuite.log created in src.

2001-08-17  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&parse_args): Recognize --normalize.

2001-08-17  Akim Demaille  <akim@epita.fr>

	Start implementing the AC_CHECK_HEADER transition scheme.

	* lib/autoconf/headers.m4 (_AC_CHECK_HEADER_NEW)
	(_AC_CHECK_HEADER_OLD, _AC_CHECK_HEADER_MONGREL): New.
	(AC_CHECK_HEADER): Use them.

2001-08-17  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: Work around Texinfo buglets.
	(Transformation Rules): One example is enough, users are expected
	to have their brains on. And BTW, use DESTDIR.
	(dvar): New macro.  Use it.

2001-08-17  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Writing testsuite.at) <AT_CHECK>: Complete.
	* lib/autotest/general.m4 (AT_INIT): Use the relative dir when
	looking for ChangeLogs.

2001-08-17  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in: --normalize is a new option.
	* bin/autoconf.in: Use it.

2001-08-17  Akim Demaille  <akim@epita.fr>

	* bin/Makefile.am, lib/Autom4te/Makefile.am, lib/autoconf/Makefile.am
	* lib/autotest/Makefile.am, lib/m4sugar/Makefile.am: Add TAGS support.

2001-08-16  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi, doc/install.texi: Put copyright notice at
	start, not at end.

2001-08-15  Akim Demaille  <akim@epita.fr>

	* doc/Makefile.am (fu): New index, can't use fn because of defmac.
	Use it.

2001-08-15  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (pr): New index.
	(prindex, findex): Use, merge, and output them.
	(Environment Variable Index, Output Variable Index)
	(Preprocessor Symbol Index, Autoconf Macro Index, M4 Macro Index)
	(Autotest Macro Index): Rename as...
	(Environment Variables, Output Variables,Preprocessor Symbols)
	(Autoconf Macros, M4 Macros, Autotest Macros): these.
	* doc/install.texi: Use @command.
	(Environment Variables): Rename as...
	(Defining Variables): this.

2001-08-15  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Function Portability): sprintf's return
	value.
	From Kevin Ryde.

2001-08-15  Akim Demaille  <akim@epita.fr>

	* Makefile.maint (CVS): New.
	(local-check): Run changelog-check. last.
	(alpha): Don't depend upon local-check, since...
	(cvs-dist): depends upon it.

2001-08-15  Tim Van Holder  <tim.van.holder@pandora.be>

	* tests/Makefile.am: Use a clean-local rule to remove
	autom4te.cache (it's a directory, not a file.
	* Makefile.am: Ditto (but maintainer-clean-local).

2001-08-15  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (@m4_warning): New.
	(&handle_m4): Use it.
	* tests/m4sugar.at (m4_warn): Pass `-f' to autom4te to ensure the
	warnings are issued at each run.
	* tests/atspecific.m4 (AT_CHECK_M4SUGAR, AT_CHECK_M4SH): M4sugar
	is in the src tree.

2001-08-15  Akim Demaille  <akim@epita.fr>

	* tests/atspecific.m4 (AT_CHECK_AUTOUPDATE): Perl is now required:
	don't waste time running `autoupdate --version' works.
	* tests/tools.at (autoupdating AC_PREREQ): Likewise.

2001-08-13  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (ma): Rename this index as...
	(ac): this.

2001-08-13  Akim Demaille  <akim@epita.fr>

	* Makefile.am: Remove dead code and dead comments.
	(pdf, html): New targets.
	* doc/autoconf.texi (Using Autotest): New chapter.
	* doc/Makefile.am (pdf): New targets.
	(CLEANFILES): Adjust.

2001-08-13  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): Log the start/stop dates and
	duration of the test suite.

2001-08-12  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* tests/semantics.at (AC_C_BIGENDIAN): Explicitelly save and load
	endianness for comparison instead of relying on AT_CHECK_ENV.

2001-08-11  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi, doc/install.texi: Add a copyright notice
	to the INSTALL file.

2001-08-11  Paul Eggert  <eggert@twinsun.com>

	* NEWS: The autoconf manual now is distributed under the terms
	of the GNU Free Documentation License.

	* doc/autoconf.texi: Switch from old style copyright notice to FDL.
	Add an appendix "Copying This Manual" for the FDL.

	* doc/fdl.texi: New file, from
	<http://www.gnu.org/licenses/fdl.texi>.

	* doc/Makefile.am (autoconf_TEXINFOS): Add fdl.texi.

2001-08-10  Paul Eggert  <eggert@twinsun.com>

	* AUTHORS, BUGS, ChangeLog, ChangeLog.0, ChangeLog.1,
	ChangeLog.2, GNUmakefile, Makefile.maint, NEWS, README,
	README-alpha, TODO, configure.ac, lib/autoconf/Makefile.am,
	m4/atconfig.m4, m4/init.m4, m4/m4.m4, m4/missing.m4,
	m4/sanity.m4, tests/README, tests/aclocal.m4,
	tests/atspecific.m4, tests/base.at, tests/compile.at,
	tests/foreign.at, tests/m4sh.at, tests/m4sugar.at,
	tests/semantics.at, tests/suite.at, tests/tools.at,
	tests/torture.at: Add copyright notice.

	* tests/mktests.sh: Update year in copyright notice.

2001-08-12  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* tests/semantics.at (AC_C_BIGENDIAN): New test.

2001-08-11  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* lib/autoconf/c.m4 (AC_C_BIGENDIAN): Handle ACTION-IF-TRUE,
	ACTION-IF-FALSE, and ACTION-IF-UNKNOWN.
	* doc/autoconf.texi (C Compiler Characteristics): Update
	documentation for AC_C_BIGENDIAN.

2001-08-11  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* lib/autoconf/c.m4 (AC_C_BIGENDIAN): Guess endianness by grep'ing
	magic values from an object file when cross-compiling.
	Based on code by Guido Draheim <Guido.Draheim@gmx.de>.

2001-08-10  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in (&handle_output): Don't use `grep' with side
	effects.
	Suggested by Russ Allbery.

2001-08-10  Ralf Corsepius  <corsepiu@faw.uni-ulm.de>

	* lib/autoconf/general.m4 (_AC_OUTPUT_SUBDIRS): Propagate the
	current $prefix to the sub-configures.

2001-08-09  Tim Van Holder  <tim.van.holder@pandora.be>

	* lib/autoconf/lang.m4: Ignore *.xSYM when looking for an executable
	extension (needed on BeOS).  Reported by Guido van Rossum.

2001-08-09  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in ($icache): Load it only if older than autom4te.

2001-08-07  Akim Demaille  <akim@epita.fr>

	* lib/autotest/general.m4 (AT_INIT): All the `at-*' are to be
	removed.
	(at-setup-line): Huh?  Be a variable `at_setup_line', not a file.
	No need to remove the files before and after the each test, before
	each test and at the end of the suite is enough.
	Display only the children `times', not the shell's.
	If the test failed or was skipped, at-times is not available.

2001-08-07  Akim Demaille  <akim@epita.fr>

	Always produce testsuite.log, including when there are no
	failures.  This helps getting information on skipped tests, and
	duration of the tests.  Err, implement the latter btw.

	* lib/autotest/general.m4 (AT_INIT): Set up fd 6 for the log.
	Dump information on the first run of each test.
	(AT_CLEANUP): Create `at-times' containing the duration of the
	test group.

2001-08-07  Akim Demaille  <akim@epita.fr>

	The use of `dumpstat' revealed that `len' was used although it
	should not.  m4_text_wrap was using it, but in the Autoconf world
	where it is legal.  Hence (i) test M4sh in its own world, not
	Autoconf's, and (ii), ahem, fix the bug :)

	* lib/autotest/general.m4: Be sure the set good quotes, as tracing
	does not like `' instead of [].
	(AT_INIT): Forbid `^_?AT_'.
	And don't output such tokens.
	* tests/Makefile.am (CLEANFILES): Add `script', `script.s4g',
	`script.as', and `autom4te.cache'.
	Remove `empty' and `macro' which are no longer used.
	* tests/atspecific.m4 (AT_CHECK_M4SUGAR, AT_CHECK_M4SH): New.
	* tests/m4sugar.at: Use it.
	* lib/m4sugar/m4sugar.m4: Use `m4_len' not `len'.

2001-08-07  Akim Demaille  <akim@epita.fr>

	* bin/autoconf.in, bin/autoheader.in: --force, -f is a new option.

2001-08-07  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* bin/autom4te.in (handle_output): Typo in quadrigraph substitution.

2001-08-04  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/functions.m4 (AC_FUNC_ALLOCA, AC_FUNC_ERROR_AT_LINE)
	(AC_FUNC_FSEEKO, AC_FUNC_OBSTACK): Use AC_LANG_IFELSE, not
	AC_TRY_LINK.
	* lib/autoconf/headers.m4 (AC_HEADER_MAJOR): Likewise.
	* lib/autoconf/fortran.m4 (_AC_LANG_PROGRAM_C_F77_HOOKS)
	(AC_F77_MAIN): Likewise.

2001-08-04  Akim Demaille  <akim@epita.fr>

	Don't rely on M4sugar outputting the patterns in files, since we
	might process the output _without_ running m4, hence without these
	files.

	* lib/m4sugar/m4sugar.m4 (m4_init): No need for `m4_tmpdir'.
	* bin/autom4te.in (@Request::includes): Remove, unused.
	(@Request::source): Rename as...
	(@Request::input): this.
	(@preselect): Add `m4_pattern_forbid' and `m4_pattern_allow'.
	(&handle_output): Fetch the patterns from the traces.
	`$forbidden' and `$allowed' are constant: use m//o.
	(&handle_m4): M4sugar no longer wants `m4_tmpdir'.
	(m4_pattern_forbid, m4_pattern_allow): Adjust for tracing only.

2001-08-04  Akim Demaille  <akim@epita.fr>

	`autoconf && autoheader' is sped up.  Now, speed up `autoheader &&
	autoconf', i.e., in addition to caching traces, cache the output.

	* bin/autom4te.in (Request::cache): Rename as...
	(Request::id): this.
	($cache, $icache, $tcache, $ocache): New.
	(&handle_m4): Save M4 output in the cache instead of $tmp.
	(&handle_output): Adjust.
	(&up_to_date_p): Check that the output cache is up to date too.
	(top level): Run `&handle_m4' iff force or the cache is invalid.
	Run `&handle_output' if the output cache is more recent.

2001-08-04  Akim Demaille  <akim@epita.fr>

	* bin/autom4te.in ($force): New.
	(&parse_args, &print_usage): -f, --force is a new option.
	(&handle_output): CPP directives might have spaces after `#'.
	(&parse_args): The first file only can be frozen.

2001-08-04  Akim Demaille  <akim@epita.fr>

	Don't let autom4te compute the `include' traces several times:
	first check that the trace cache file is up to date, and then
	compare its timestamp with that of the output.

	* bin/autom4te.in, bin/autoupdate.in, bin/autoscan.in: Normalize
	the preamble.  Don't require 5.005 as Autom4te::General does it,
	and better yet (use `use', not `require'!).
	* lib/Autom4te/Struct.pm: Rename the last occurrences of
	Class::Struct as Autom4te::Struct.
	* lib/Autom4te/General.pm (File::stat): Use it.
	(&mtime): New, export it.
	* bin/autom4te.in: Use it.
	Declare `$req' is invalid if it is outdated.
	Don't declare it valid before saving it if something went wrong.

2001-08-04  Akim Demaille  <akim@epita.fr>

	Autom4te shall not encode Autoconf data, and preselecting traces
	must be proposed to the users.

	* bin/autom4te.in (@required_trace): Remove.
	(@preselect): New.
	(&parse_args, &print_usage): -p, --preselect is a new option.
	(&up_to_date_p): Adjust.
	* bin/autoconf.in: Preselect some Autoconf macros.

2001-08-04  Akim Demaille  <akim@epita.fr>

	* tests/tools.at (autoconf --trace: user macros): Check traces on
	macros invoked without arguments, and macros invoked with multiple
	lines arguments.

2001-08-03  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* bin/autom4te.in (handle_traces): Fix rewriting of traces without
	arguments.

2001-08-03  Akim Demaille  <akim@epita.fr>

	* bin/autoconf.in ($@): Work around the usual sh bug.
	From Nicolas Joly.

2001-08-03  Akim Demaille  <akim@epita.fr>

	Clean up the handling of the M4 builtins tracing exception.

	* bin/autom4te.in (Request::request): Don't complete M4 builtins
	trace requests.
	(@m4_builtins): Rename as...
	(@m4_builtin): this.
	(%m4_builtin_alternate_name): New.
	(&parse_args): Complete the trace requests with alternate names.
	(&handle_traces): Hence no longer do it here.
	(&trace_requests): Remove, unused.

2001-08-03  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Redefined M4 Macros): Document m4_exit,
	m4_if, and m4_wrap.

2001-08-03  Akim Demaille  <akim@epita.fr>

	* lib/m4sugar/m4sugar.m4 (m4_init): Also forbid `_m4_*' tokens.
	(m4_divert_pop): Dump the whole diversion stack when a diversion
	mismatch happens.
	* bin/autom4te.in (&handle_output): Remember of the first
	occurrence of a possibly undefined macro, not the last.
	Complain about the possibly undefined macros in the same order as
	the appear in the output.
	* lib/autoconf/Makefile.am (autoconf.m4f): List its dependencies.
	* tests/tools.at (autoconf: forbidden tokens, basic)
	(autoconf: forbidden tokens, exceptions): No longer sort
	autoconf's stderr, as it is now deterministic.
	Check that `dnl' is caught.

2001-08-01  Akim Demaille  <akim@epita.fr>

	* configure.ac: Bump to 2.52c.

2001-08-01  Akim Demaille  <akim@epita.fr>

	Version 2.52b.

	* lib/Autom4te/Makefile.am (perllibdir): s/Autoconf/Autom4te/.

2001-08-01  Akim Demaille  <akim@epita.fr>

	Version 2.52a.

2001-08-01  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm: Use `carp' and `croak', not `warn' and
	`die'.
	(&END): New.
	* bin/autoconf.in, bin/autom4te.in, bin/autoupdate.in: Remove your
	`END', as `Autom4te::General::END' will be triggered.
	* bin/autoupdate.in, bin/autoscan.in: Improve error messages accuracy.
	* bin/autoupdate.in (File::Compare, File::Copy): Use them instead of
	system to run `mv', `rm', and `cmp'.

2001-08-01  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm (&unique): New.
	* bin/autoscan.in (&output): Use it to issue trace requests once.

2001-08-01  Akim Demaille  <akim@epita.fr>

	* lib/Autom4te/General.pm: New.
	* bin/autom4te.in (Autom4te::General): Use it.
	($me, $tmp, $verbose, $debug, &mktmpdir, &verbose, &xsystem)
	(&find_configure_ac, &find_slave): Remove.
	* bin/autoscan.in: Likewise.
	* bin/autoupdate.in: Likewise.

2001-08-01  Akim Demaille  <akim@epita.fr>

	* autoconf.in, autom4te.in, autoscan.in, ifnames.in,
	* autoheader.in, autoreconf.in, autoupdate.in: Move to...
	* bin: here, new directory.
	* lib/Autoconf: Rename as...
	* lib/Autom4te: this, to please case insensitive junkie OSes.

2001-08-01  Akim Demaille  <akim@epita.fr>

	* autom4te.in ($m4): Handle the --nesting-limit.
	* autoconf.in (M4): Remove.

2001-08-01  Akim Demaille  <akim@epita.fr>

	* autoconf.in ($AWK): Remove, no longer used.
	* test/tools.at: Use AT_CHECK_AUTOCONF.
	(AWK portability): Remove, for autoconf no longer uses AWK.
	(Syntax of the Perl scripts): New.
	* configure.ac: autoconf no longer needs an AWK with a good
	regexp engine.
	Use a static test on AC_PACKAGE_VERSION.
	* autom4te.in (&up_to_date_p): Output depends on the arguments.
	* lib/autoconf/Makefile.am: Ship version.m4, maintainer file.
	* tests/atconfig.in (PERL): New.

2001-08-01  Akim Demaille  <akim@epita.fr>

	* lib/autoconf/lang.m4 (AC_LANG(C), AC_LANG_C, _AC_LANG_ABBREV(C))
	(AC_LANG(C++), AC_LANG_CPLUSPLUS, _AC_LANG_ABBREV(C++))
	(AC_LANG_SOURCE(C), AC_LANG_PROGRAM(C), AC_LANG_CALL(C))
	(AC_LANG_FUNC_LINK_TRY(C), AC_LANG_BOOL_COMPILE_TRY(C))
	(AC_LANG_INT_SAVE(C), _AC_ARG_VAR_CPPFLAGS, _AC_ARG_VAR_LDFLAGS)
	(AC_LANG_PREPROC(C), _AC_PROG_PREPROC_WORKS_IFELSE, AC_PROG_CPP)
	(AC_LANG_COMPILER(C), ac_cv_prog_gcc, AC_PROG_CC, _AC_PROG_CC_G)
	(AC_PROG_GCC_TRADITIONAL, AC_PROG_CC_C_O, AC_LANG_PREPROC(C++))
	(AC_PROG_CXXCPP, AC_LANG_COMPILER(C++), ac_cv_prog_gxx)
	(AC_PROG_CXX, _AC_PROG_CXX_G, _AC_PROG_CXX_EXIT_DECLARATION)
	(AC_PROG_CC_STDC, AC_C_CROSS, AC_C_CHAR_UNSIGNED, AC_C_LONG_DOUBLE)
	(AC_C_BIGENDIAN, AC_C_INLINE, AC_C_CONST, AC_C_VOLATILE)
	(AC_C_STRINGIZE, AC_C_PROTOTYPES): Move to...
	* lib/autoconf/c.m4: here, new file.

	* lib/autoconf/lang.m4 (AC_LANG(Fortran 77), AC_LANG_FORTRAN77)
	(_AC_LANG_ABBREV(Fortran 77), AC_LANG_SOURCE(Fortran 77))
	(AC_LANG_PROGRAM(Fortran 77), AC_LANG_CALL(Fortran 77))
	(AC_LANG_PREPROC(Fortran 77), AC_LANG_COMPILER(Fortran 77))
	(ac_cv_prog_g77, AC_PROG_F77, _AC_PROG_F77_G, AC_PROG_F77_C_O)
	(_AC_PROG_F77_V_OUTPUT, _AC_PROG_F77_V, AC_F77_LIBRARY_LDFLAGS)
	(AC_F77_DUMMY_MAIN, _AC_LANG_PROGRAM_C_F77_HOOKS, AC_F77_MAIN)
	(_AC_F77_NAME_MANGLING, AC_F77_NAME_MANGLING, AC_F77_WRAPPERS)
	(AC_F77_FUNC): Move to...
	* lib/autoconf/fortran.m4: here, new file.

2001-08-01  Akim Demaille  <akim@epita.fr>

	* acfunctions.m4: Rename as...
	* lib/autoconf/functions.m4: this.
	* acgeneral.m4: Rename as...
	* lib/autoconf/general.m4: this.
	* acheaders.m4: Rename as...
	* lib/autoconf/headers.m4: this.
	* aclang.m4: Rename as...
	* lib/autoconf/lang.m4: this.
	* acoldnames.m4: Rename as...
	* lib/autoconf/oldnames.m4: this.
	* acspecific.m4: Rename as...
	* lib/autoconf/specific.m4: this.
	* actypes.m4: Rename as...
	* lib/autoconf/types.m4: this.
	* autoconf.m4: Rename as...
	* lib/autoconf/autoconf.m4: this.

	* m4sugar.m4: Rename as...
	* lib/m4sugar/m4sugar.m4: this.
	* m4sh.m4: Rename as...
	* lib/m4sugar/m4sh.m4: this.

	* tests/atgeneral.m4: Rename as...
	* lib/autotest/general.m4: this.

	* acfunctions: Rename as...
	* lib/autoscan/functions: this.
	* acheaders: Rename as...
	* lib/autoscan/headers: this.
	* acidentifiers: Rename as...
	* lib/autoscan/identifiers: this.
	* aclibraries: Rename as...
	* lib/autoscan/libraries: this.
	* acmakevars: Rename as...
	* lib/autoscan/makevars: this.
	* acprograms: Rename as...
	* lib/autoscan/programs: this.

2001-08-01  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi: Moving/deleting open files is not portable.
	Portability issues for `.' (source), and more information about sed.

2001-07-25  Steven G. Johnson  <stevenj@alum.mit.edu>

	* aclang.m4 (AC_F77_LIBRARY_LDFLAGS): Ignore -libmil (on Solaris),
	which has a special meaning and is not a reference to libibmil.a.
	Reported by Matteo Frigo.

2001-07-25  Pavel Roskin  <proski@gnu.org>

	* autom4te.in (mktmpdir): Strip trailing newline from mktemp
	output.

2001-07-25  Akim Demaille  <akim@epita.fr>

	* autoconf.in: Try to define the variables before using them.
	* autom4te.in ($perllibdir): Use `$autom4te_perllibdir' as envvar
	instead of `$perllibdir'.
	* tests/atconfig.in ($autom4te_perllibdir): Export it.

2001-07-25  Akim Demaille  <akim@epita.fr>

	* autoconf.in (ac_LF_and_DOT): Remove, unused.

2001-07-24  Akim Demaille  <akim@epita.fr>

	Let autoconf use autom4te for traces.

	* autoconf.in ($task, task trace): Remove, merely pass --trace to
	autom4te.
	* autoheader.in: Don't pass `-' to autoconf, rather, a tmp file.
	(Because I found no way for autom4te to accept `-').
	* autom4te.in (&Request::request): Beware of M4 builtins.
	(END): Don't try to remove the content of an empty dir.
	(&parse_args): Default is `$f:$l:$n:$%', not `$f:$l:$n:$*'.
	(&handle_output): Set a default value to `$forbidden'.
	* autoupdate.in (&verbose, &xsystem): New, from autom4te.in.
	($autoconf): Pass --debug and --verbose.
	* tests/atspecific.m4 (AT_CHECK_AUTOCONF): Clean up autom4te's
	cache.

2001-07-24  Akim Demaille  <akim@epita.fr>

	Let autoconf use autom4te to create configure.

	* autoconf.in ($automate): New var.
	(task script): Use autom4te.
	* autom4te.in (File::Spec): Use it.
	(&find_file): New.
	(&parse_args): --warning is -W, not -w.
	Find the top level files.
	(&handle_m4): Pass the warnings flags.
	Don't report verbosely m4's failures, unless requested.
	(&handle_output): Don't complain for forbidden tokens in comments.
	Be sure to report all the forbidden tokens within a single line.
	(&trace_format_to_m4): Preserve `$_'.
	(&handle_traces): Sort the output macros.
	(&up_to_date_p): Find the files before trying to get its time stamp.

2001-07-24  Akim Demaille  <akim@epita.fr>

	* Makefile.am: Ship, build and install Autom4te.
	(SUBDIRS): Add lib.
	* lib/Autoconf/Struct.pm: New, from Automake 1.5.
	* configure.in: Require Perl.
	* man/autom4te.in: New.

2001-07-19  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi (Cache Checkpointing): Use AC_MSG_ERROR in
	example, rather than (exit 1); exit (which isn't portable).

2001-07-18  Akim Demaille  <akim@epita.fr>

	Version 2.52.

2001-07-18  Akim Demaille  <akim@epita.fr>

	The C-Fortran 77 hooks are available only once AC_F77_DUMMY_MAIN
	was run, while they are needed also when it is expanded.
	Reported by Nicolas Joly.

	* aclang.m4 (AC_F77_DUMMY_MAIN): Define _AC_LANG_PROGRAM_C_F77_HOOKS.
	(AC_LANG_PROGRAM(C)): Use it instead of depending upon
	AC_F77_DUMMY_MAIN being expanded.

2001-07-18  Akim Demaille  <akim@epita.fr>

	* configure.in: Bump to 2.51a.

2001-07-17  Akim Demaille  <akim@epita.fr>

	Version 2.51.

2001-07-17  Akim Demaille  <akim@epita.fr>

	* aclang.m4 (AC_F77_DUMMY_MAIN): Let the interface be more
	Autoconfy: $1 = action-if-found, $2 = action-if-not-found.

2001-07-17  Akim Demaille  <akim@epita.fr>

	The runtime test for AC_FUNC_GETPGRP fails when prototypes are
	used.  Well, then use the prototypes when you can, and runtime as
	a last resort.
	Reported by Artur Frysiak

	* acfunctions.m4 (_AC_FUNC_GETPGRP_TEST): New.
	(AC_FUNC_GETPGRP): Use it.
	First try to compile with 0-ary or 1-ary calls.

2001-07-17  Akim Demaille  <akim@epita.fr>

	* actypes.m4 (_AC_CHECK_TYPE_REPLACEMENT_TYPE_P): `foo_t' is a
	replacement type.
	From Paul Eggert.

2001-07-17  Akim Demaille  <akim@epita.fr>

	* Makefile.maint: Sync. with cppi 1.10.

2001-07-17  Akim Demaille  <akim@epita.fr>

	* aclang.m4 (AC_LANG_PROGRAM(C)): Output F77_DUMMY_MAIN only when
	AC_F77_DUMMY_MAIN has been run.
	From Pavel Roskin and Steven G. Johnson.

2001-07-17  Akim Demaille  <akim@epita.fr>

	* configure.in: Rename as...
	* configure.ac: this.

2001-07-17  Akim Demaille  <akim@epita.fr>

	* Makefile.am (INSTALL.txt): Don't use $@ and $< in non suffix
	rules.
	From Marc Espie.
	* Makefile.maint (release-archive-dir): Rename as...
	(release_archive_dir): this, so that it can be specialized in
	Makefile.

2001-07-14  Akim Demaille  <akim@epita.fr>

	* configure.in: Bump to 2.50d.

2001-07-14  Akim Demaille  <akim@epita.fr>

	Version 2.50c.
	* Makefile.maint (alpha): Typo.

2001-07-14  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Limitations of Make): Macro names and underscore.

2001-07-14  Akim Demaille  <akim@epita.fr>

	* config/config.guess, config/config.sub, config/texinfo.tex
	* doc/standards.texi, doc/make-stds.texi: Update.

2001-07-14  Akim Demaille  <akim@epita.fr>

	* Makefile.maint (cvs-check, cvs-tag-check, cvs-diff-check): New.

2001-07-14  Akim Demaille  <akim@epita.fr>

	* Makefile.maint (maintainer-check): Rename as...
	(maintainer-distcheck): this.
	(changelog-check, static-check): New.
	Use them.

2001-07-14  Kevin Ryde  <user42@zip.com.au>

	* doc/autoconf.texi (C++ Compilers Characteristics): Last resort
	for CXX is g++, not gcc.

2001-07-14  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Files): New subsection.

2001-07-14  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (C Compiler, Fortran 77 Compiler): Be subsections
	of...
	(Generic Compiler Characteristics): this.
	(C++ Compiler): New subsection.

2001-07-14  Akim Demaille  <akim@epita.fr>

	* autoscan.in: Use IO::File.
	Adjust all the routines to use it.
	($log): New file (autoscan.log).
	(output): Dump detailed logs into $log, and a shortened version to
	stderr.
	(&scan_makefile): Refine the regexp catching tokens in the code.
	* doc/autoconf.texi (autoscan Invocation): Document `autoscan.log'
	and the `configure.ac' checking feature.

2001-07-12  Akim Demaille  <akim@epita.fr>

	For some AWK, such as on HPUX 11, `xfoo' does not match `foo|^bar'.
	Reported by Michael Elizabeth Chastain.

	* autoconf.in: Refuse such AWK.
	* configure.in: Likewise.
	* Makefile.am (acversion.m4): Do not use move-if-change this file
	has dependencies.
	* doc/autoconf.texi (Fortran 77 Compiler): Some typos.

2001-07-10  Jens Petersen  <petersen@redhat.com>

	* autoscan.in (&scan_makefile): Improve programs regexp to parse
	things like "g++", "file.c" and "some-conf" as tokens.
	(&scan_file): Match C++ files extensions.
	If the filename extension is C++ then ask for c++.

2001-07-05  Steven G. Johnson  <stevenj@alum.mit.edu>

	* aclang.m4 (AC_F77_DUMMY_MAIN): Use AC_TRY_LINK, not
	AC_TRY_LINK_FUNC, to check whether defining a dummy
	main-like routine is needed for linking with F77 libs.

2001-07-05  Pavel Roskin  <proski@gnu.org>

	* aclocal.m4 (_AC_PROG_CXX_EXIT_DECLARATION): Remove conftest*
	after using break.
	(_AC_PROG_F77_V_OUTPUT): Remove conftest*, not conftest.* after
	linking.

2001-07-05  Akim Demaille  <akim@epita.fr>

	* Makefile.am (move_if_change): New.  Use it instead of `mv'.
	(acversion.m4): Name it `$(srcdir)/acversion.m4' to ease broken
	Makes' lives.
	Reported by Nicolas Joly.

2001-07-04  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (_AC_RUN_IFELSE): Remove conftest.o when cleaning
	up.
	* acfunctions.m4 (AC_FUNC_WAIT3): Use `break' to silent some
	warnings from compilers.
	* aclang.m4 (_AC_LANG_COMPILER_GNU): Log the version information
	for all the compilers, not only GNU.  Hence move from here...
	(AC_PROG_CC, AC_PROG_CXX, AC_PROG_F77): to here.

2001-07-04  Akim Demaille  <akim@epita.fr>

	* acfunctions.m4 (AC_FUNC_STRTOD, AC_FUNC_STRERROR_R)
	(AC_FUNC_STRCOLL, AC_FUNC_WAIT3): Use AC_RUN_IFELSE and
	AC_COMPILE_IFELSE.

2001-07-04  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (_AC_INCLUDES_DEFAULT_REQUIREMENTS): Actually apply
	the ``strings.h'' change claimed below.

2001-07-04  Akim Demaille  <akim@epita.fr>

	* aclang.m4 (_AC_LANG_COMPILER_GNU): s/-dumpspecs/-v/.

2001-07-04  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (_AC_INCLUDES_DEFAULT_REQUIREMENTS): Include
	strings.h if usable with string.h.
	Suggested by Paul Eggert.

2001-07-04  Akim Demaille  <akim@epita.fr>

	* autoscan.in (&scan_file): Skip FILE if there is FILE.in.
	From Jens Petersen.

2001-07-03  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (_AC_OUTPUT_CONFIG_STATUS): Specify CONFIG_FILES
	etc. in the log.

2001-07-03  Akim Demaille  <akim@epita.fr>

	* acheaders.m4 (AC_CHECK_HEADER): When INCLUDES are set, use the
	compiler, not the preprocessor.
	* acgeneral.m4 (_AC_INCLUDES_DEFAULT_REQUIREMENTS): No longer use
	dedicated code to check for inttypes.h, as AC_CHECK_HEADERS does
	the right thing.
	* Makefile.am (.m4.m4f): Emphasize M4 error messages and fail
	earlier if there are.

2001-07-03  Akim Demaille  <akim@epita.fr>

	* autoscan.in ($initfile): Remove.
	(&find_file): Rename as...
	(&scan_file): this.
	Immediately scan the current file, instead of gathering them, and
	later having them handled by &scan_files.
	(&scan_files): Merely invoke Find::File.
	Adjust.

2001-07-02  Akim Demaille  <akim@epita.fr>

	* autoscan.in: Formatting changes, matching the invocation order.
	(File::Find): Use it instead of Perl 4's `find.pl'.
	(&wanted): Rename as...
	(&find_file): this.

2001-07-01  Pavel Roskin  <proski@gnu.org>

	* aclang.m4 (AC_F77_DUMMY_MAIN): Remove conftest* after using
	break in the argument to AC_TRY_LINK_FUNC.
	(AC_F77_MAIN): Remove conftest* after using break in the
	argument to AC_TRY_LINK.

2001-07-01  Steven G. Johnson  <stevenj@alum.mit.edu>

	Add alternate 'main' routine detection for linking C/C++ with Fortran,
	fixing link failures for e.g. AC_F77_WRAPPERS on NetBSD.

	* aclang.m4 (AC_F77_DUMMY_MAIN): New macro to detect whether a
	dummy alternate main is required even if the user provides her own
	'main'.
	(AC_F77_MAIN): New macro to detect whether it is possible to
	provide an alternate 'main' function name, using the 'main' from
	the Fortran libraries.
	(AC_LANG_PROGRAM(C)): Use F77_DUMMY_MAIN, if it is defined, so that
	cross-language link tests can be performed successfully.
	(_AC_F77_NAME_MANGLING): Require AC_F77_DUMMY_MAIN.  Also put $FLIBS
	after $LIBS, for consistency; this should be the general rule since
	the user may want to link to Fortran libraries that require $FLIBS.
	* doc/autoconf.texi: Document AC_F77_DUMMY_MAIN and AC_F77_MAIN.

2001-06-29  Pavel Roskin  <proski@gnu.org>

	* atgeneral.m4 (AT_CHECK): Add a newline to the end of
	at-stdout and at-stderr instead of removing the newline
	from the echo output, which is not guaranteed to work.

2001-06-28  Jens Petersen  <petersen@redhat.com>

	* aclang.m4 (_AC_PROG_CXX_EXIT_DECLARATION): Only add declaration to
	confdefs.h when non-zero.

2001-06-28  Akim Demaille  <akim@epita.fr>

	* configure.in: Bump to 2.50c.

2001-06-26  Akim Demaille  <akim@epita.fr>

	Version 2.50b.

2001-06-26  Akim Demaille  <akim@epita.fr>

	Version 2.50a.

2001-06-25  Pavel Roskin  <proski@gnu.org>

	* tests/atspecific.m4 (AT_CHECK_MACRO): Accept one more
	argument, AUTOCONF-FLAGS.
	* tests/mktests.sh (update_exclude_list): Add
	AC_SYS_RESTARTABLE_SYSCALLS and AC_FUNC_WAIT3.
	* tests/semantics.at: Test AC_SYS_RESTARTABLE_SYSCALLS and
	AC_FUNC_WAIT3 with "-W no-obsolete".

2001-06-25  Akim Demaille  <akim@epita.fr>

	* tests/foreign.at (libtool): Fix the `libtoolize --version' decoding.

2001-06-25  Akim Demaille  <akim@epita.fr>

	* autoscan.in (%macro): Now maps from word to list of macros.
	(&init_tables): Die when a word which is already handled by
	explicit macros is mapped to the default macro.
	(&print_unique): Remove, inlined in...
	(&output_kind): here.
	(File::Basename): Use it.
	(&output): Sort the CONFIG_FILES.
	* acheaders: Normalize.
	* acfunctions: Likewise.

2001-06-25  Akim Demaille  <akim@epita.fr>

	* aclang.m4 (_AC_LANG_COMPILER_GNU): If GNU, dump the compiler
	characteristics in the logs.
	Suggested by Mo DeJong.

2001-06-24  Akim Demaille  <akim@epita.fr>

	* acfunctions.m4 (AM_FUNC_ERROR_AT_LINE, AM_FUNC_FNMATCH)
	(AM_FUNC_MKTIME, AM_FUNC_OBSTACK, AM_FUNC_STRTOD): Reactivated.
	* doc/autoconf.texi (Autoconf 2.13): New section.

2001-06-24  Akim Demaille  <akim@epita.fr>

	* autoconf.in (Task traces): Separate the error messages from the
	traces to improve robustness.

2001-06-23  Akim Demaille  <akim@epita.fr>

	* tests/torture.at (AC_ARG_VAR): Make it a single test instead of
	three as failures are unlikely, and speed matters.

2001-06-23  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Redefined M4 Macros): New.

2001-06-23  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (_AC_INCLUDES_DEFAULT_REQUIREMENTS): Consider
	inttypes.h is missing if it conflicts with sys/types.h, as on IRIX
	5.3.

2001-06-23  Paolo Bonzini  <bonzini@gnu.org>

	* acgeneral.m4 (_AC_OUTPUT_CONFIG_STATUS): Defer parsing of
	config.status targets to after the evaluation of the INIT-CMDS.
	Double quote config.status targets (used to be single quoted).

2001-06-23  Akim Demaille  <akim@epita.fr>

	* tests/torture.at (CONFIG_FILES, HEADERS, LINKS and COMMANDS):
	Check the content of the created file.
	Check the ./config.status command line invocation.

2001-06-23  Akim Demaille  <akim@epita.fr>

	* tests/foreign.at (Libtool): Reject prehistoric versions.

2001-06-23  Akim Demaille  <akim@epita.fr>

	* aclang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Try to be robust to
	preexisting files matching a.*.

2001-06-23  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (_AC_ARG_VAR_VALIDATE): Output error messages on
	stderr.
	* doc/autoconf.texi (AC_ARG_VAR): Update.

2001-06-21  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (_AC_ARG_VAR_VALIDATE): Die instead of warning when
	precious variables have changed.
	* tests/torture.at (AC_ARG_VAR): Adjust.

2001-06-21  Akim Demaille  <akim@epita.fr>

	./configure --program-suffix=foo produces `transform=s,$$,foo,;',
	but some sed choke on multiple `;', and other tools (e.g.,
	Automake), include the separator themselves.

	* acgeneral.m4 (AC_ARG_VAR): Be sure not to leave extra `;'.

2001-06-19  Tim Van Holder  <tim.van.holder@pandora.be>

	* doc/autoconf.texi (Functions Portability): Rename as...
	(Function Portability): this.
	(Function Portability): Document potential problems with unlink().

2001-06-19  Paul Eggert  <eggert@twinsun.com>

	* NEWS, doc/autoconf.texi: Document quadrigraphs.

2001-06-18  Akim Demaille  <akim@epita.fr>

	* acfunctions.m4 (AC_FUNC_FORK): Fix typos.

2001-06-18  Ruediger Kuhlmann  <info@ruediger-kuhlmann.de>

	* acfunctions.m4: (AC_FUNC_VFORK) rename as...
	(_AC_FUNC_VFORK): this.
	Remove AC_DEFINEs and don't guess cross-compilation values.
	(_AC_FUNC_FORK): New, check whether fork() isn't just a stub.
	(AC_FUNC_FORK): New, use _AC_FUNC_VFORK and _AC_FUNC_FORK to
	define HAVE_WORKING_FORK, HAVE_WORKING_VFORK; and vfork to fork if
	vfork doesn't work.
	Guess values if cross-compiling, but warn.
	* acfunctions: Add AC_FUNC_FORK.
	* doc/autoconf.texi: Document AC_FUNC_FORK. Give example to define
	and vfork appropriately.

2001-06-18  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Functions Portability): New section.

2001-06-18  Akim Demaille  <akim@epita.fr>

	* autoconf.in (M4): Pass --nesting-limit=1024, unless already set
	in $M4.
	Suggested by Andreas Schwab.

2001-06-18  Akim Demaille  <akim@epita.fr>

	* acfunctions.m4 (AC_FUNC_CHOWN, AC_FUNC_CLOSEDIR_VOID)
	(AC_FUNC_GETPGRP, AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK)
	(AC_FUNC_MMAP, AC_FUNC_SELECT_ARGTYPES, _AC_FUNC_STAT)
	(AC_FUNC_UTIME_NULL): Use AC_INCLUDES_DEFAULT.
	Don't use AC_TRY_RUN, which double quotes, prefer AC_RUN_IFELSE,
	and either AC_LANG_SOURCE or AC_LANG_PROGRAM.
	(AC_FUNC_CLOSEDIR_VOID): Protect C++ from `int closedir ();' (or
	the converse).

2001-06-18  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (ms): New index.
	(Macro Index): Rename as...
	(Autoconf Macro Index): this.
	(M4 Macro Index): New appendix.
	(Programming in M4): New chapter.
	Define M4sugar, M4sh, m4_pattern_forbid, and m4_pattern_allow.
	(Quoting): Rename as...
	(M$ Quotation): this.
	Be part of `Programming in M4).

2001-06-18  Nicolas Joly  <njoly@pasteur.fr>

	* tests/torture.at (AC_ARG_VAR): Set variables and export them
	in separate statements for compatibility with Tru64 v5.1.

2001-06-17  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (_AC_ARG_VAR_VALIDATE): Be sure to cache the
	current values of the precious variables, not the previously
	cached values.
	Pass precious variables which are set to config.status.
	* doc/autoconf.texi (Setting Output Variables): Document AC_ARG_VAR.
	* tests/torture.at (AC_ARG_VAR): New.

2001-06-15  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi: Move AC_FUNC_WAIT3 and
	AC_SYS_RESTARTABLE_SYSCALLS to the obsolete section,
	and explain why and how to replace them.
	* acfunctions.m4 (AC_FUNC_WAIT3): Warn as obsolete.
	* acspecific.m4 (AC_SYS_RESTARTABLE_SYSCALLS): Likewise.

2001-06-15  Akim Demaille  <akim@epita.fr>

	`build_alias', `host_alias', and `target_alias' are not AC_SUBST'd.
	Reported by Bruno Haible.

	* acgeneral.m4 (AC_ARG_VAR): Move the AC_SUBST, from here...
	 (_AC_ARG_VAR_PRECIOUS): to here.

2001-06-15  Pavel Roskin  <proski@gnu.org>

	* acheaders.m4 (_AC_CHECK_HEADER_DIRENT): Instead of defining
	an unused pointer use cast to this type and `if' statement to
	avoid warnings from the compiler.
	(AC_HEADER_TIME): Likewise.
	* actypes.m4 (AC_CHECK_MEMBER): s/foo/ac_aggr/. Use the member
	in `if' statement to avoid warnings from the compiler. Declare
	ac_aggr static to avoid the need to initialize it.

2001-06-14  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Portable Shell): Move to follow `Writing
	Macros'.

2001-06-13  Akim Demaille  <akim@epita.fr>

	* m4/missing.m4, config/missing: Updated to Automake 1.4g's.
	Suggested by Alexander Mai.

2001-06-13  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (_AC_INCLUDES_DEFAULT_REQUIREMENTS): Guard
	sys/types.h and sys/stat.h, and check for them.

2001-06-13  Akim Demaille  <akim@epita.fr>

	* acheaders.m4 (AC_CHECK_HEADER, AC_CHECK_HEADERS): Support $4 =
	INCLUDES.

2001-06-12  Maciej W. Rozycki  <macro@ds2.pg.gda.pl>

	* acspecific.m4 (AC_PATH_XTRA): Check if linking against libX11
	succeeds and only try adding libdnet upon a failure.

2001-06-12  Akim Demaille  <akim@epita.fr>

	* autoscan.in (&output_kind): Output the comment only if it exists.
	(%kind_comment): Add entry for `programs'.
	(&output_programs): Use &output_kind.
	(&output_functions, &output_identifiers, &output_headers)
	(&output_programs): Inline, and remove.

2001-06-12  Akim Demaille  <akim@epita.fr>

	* autoscan.in (%kind_comment): New.
	(output_kind): New.
	(output_functions, output_identifiers, output_headers): Use it.

2001-06-12  Akim Demaille  <akim@epita.fr>

	* autoscan.in (&print_unique): Take `$kind' and `$word' as
	arguments, to factor indirections into `%macro' and `%used'.
	(%generic_macro): Fix a typo.

2001-06-12  Akim Demaille  <akim@epita.fr>

	* aclibraries: New.
	* autoscan.in (@kinds): Add `libraries'.
	Use `@kinds' instead of hard coded lists.
	(%programs, %headers, %identifiers, %makevars, %libraries, %functions):
	Remove, replaced by...
	(%used): this.

2001-06-12  Akim Demaille  <akim@epita.fr>

	* autoscan.in (%functions_macros %headers_macros)
	(%identifiers_macros %programs_macros %makevars_macros): Remove,
	replaced by...
	(%macro): New.

2001-06-11  Raja R Harinath  <harinath@cs.umn.edu>

	* aclang.m4 (AC_NO_EXECUTABLES): Override
	_AC_COMPILER_EXEEXT_WORKS, not _AC_LANG_COMPILER_WORKS.

2001-06-11  Akim Demaille  <akim@epita.fr>

	* aclang.m4 (AC_NO_EXECUTABLES): Define the macros with their
	trailing new line.
	Reported by Andreas Schwab.

2001-06-11  Akim Demaille  <akim@epita.fr>

	* Makefile.am, Makefile.maint: Typos.

2001-06-09  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Here-Documents): New section, gathering
	documentation about here-documents.
	Use `href', not `uref', and other changes.

2001-06-09  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Portable Shell Programming): Promoted as a
	chapter.

2001-06-09  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Limitations of Builtins): Complete the
	description of the here-docs penalties with Alexandre Oliva's
	explanations.

2001-06-01  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi: Talk about here documents and speedups.
	Do not use "echo" on arbitrary strings.
	Spell "here-documents" consistently with the standard.

2001-06-09  Akim Demaille  <akim@epita.fr>

	* doc/autoconf.texi (Concept Index): Introduce it.
	Regenerate the menus.

2001-06-09  Akim Demaille  <akim@epita.fr>

	* Makefile.maint, GNUmakefile: New, from Jim Meyering.
	* config/prev-version.txt: New.
	* config/move-if-change: New, for GNU libc.

2001-06-06  Pavel Roskin  <proski@gnu.org>

	* tests/atgeneral.m4 (AT_INIT): Remove "/bin/sh" after $SHELL.

2001-06-06  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (AC_CHECK_LIB): Fix the cache var name to work
	properly when $1 is not a literal.
	Fixes PR Autoconf/187, reported by Bram Moolenaar.

2001-06-06  Akim Demaille  <akim@epita.fr>

	Invoking AC_COPYRIGHT before AC_INIT fails.

	* Makefile.am (.m4.m4f): Pass --fatal-warnings to m4.
	* acgeneral.m4 (_m4_divert(VERSION_FSF))
	(_m4_divert(VERSION_USER)): New.
	(AC_COPYRIGHT): $2 is the diversion to use.
	(_AC_INIT_COPYRIGHT): Use the FSF diversion.
	(AC_INIT): Remove dead comments as now it's commutative.

2001-06-06  Akim Demaille  <akim@epita.fr>

	* tests/semantics.at (AC_CHECK_LIB): Strengthen to reflect
	PR autoconf/187.

2001-06-05  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (_AC_INIT_PARSE_ARGS): `prefix' and `exec_prefix'
	can be empty.
	`*dir' variables cannot be NONE.
	Reported by Mark Kettenis.

2001-06-05  Paul Eggert  <eggert@twinsun.com>

	* doc/autoconf.texi: Fix references to Solaris and SunOS versions.

2001-06-04  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (AC_VAR_SET, AC_VAR_GET, AC_VAR_TEST_SET)
	(AC_VAR_SET_IFELSE, AC_VAR_PUSHDEF and AC_VAR_POPDEF, AC_TR_CPP)
	(AC_TR_SH): Move as...
	* m4sh.m4 (AS_VAR_SET, AS_VAR_GET, AS_VAR_TEST_SET)
	(AS_VAR_SET_IF, AC_VAR_PUSHDEF, AS_VAR_POPDEF, AS_TR_CPP)
	(AS_TR_SH): these.
	(_AS_TR_PREPARE, _AS_CR_PREPARE, _AS_TR_CPP_PREPARE)
	(_AS_TR_SH_PREPARE): New.
	(AS_SHELL_SANITIZE): Invoke _AS_TR_PREPARE.
	* tests/aclocal.m4 (AC_STATE_SAVE): `as_' vars can be modified.

2001-06-02  Akim Demaille  <akim@epita.fr>

	* Makefile.am (.m4.m4f): Pass the options first.
	Fixes PR autoconf/182.

2001-06-02  Nathan Sidwell  <nathan@codesourcery.com>

	GNU getopt, when POSIXLY_CORRECT does not permute options and
	arguments.  So pass the options first.
	Fixes PR autoconf/184.

	* autoconf.sh (m4_prefiles, m4f_prefiles): New variables.
	(run_m4): Remove files.
	(run_m4f): Remove.
	Update remainder of script to use them.
	(for warning in): Do not use a literal comma as it will not be
	split by IFS.

2001-06-02  Christian Marquardt  <marq@gfz-potsdam.de>

	* aclang.m4 (AC_PROG_F77): Add Fujitsu's "frt" to the list of
	Fortran compilers to check.
	(_AC_PROG_F77_V): Add '-###' as a possible option to print
	information on library and object files.
	(AC_PROG_CXX): Add Fujitsu's "FCC" to the list of C++ compilers
	to check.

2001-06-02  Akim Demaille  <akim@epita.fr>

	* autom4te.in (Request::@request): Declare with `vars', not `my',
	as it prevents updates via `do FILENAME'.

2001-06-02  Akim Demaille  <akim@epita.fr>

	* configure.in (standards_texi): Remove, dead code.

2001-06-02  Akim Demaille  <akim@epita.fr>

	* autom4te.in: New.

2001-06-02  Pavel Roskin  <proski@gnu.org>

	* acgeneral.m4 (_AC_INIT_PREPARE): Don't rely on $? in the traps
	for signals other than 0 - exit with code 1.
	* m4sh.m4 (AS_TMPDIR): Likewise.
	* autoconf.in: Likewise. Also don't rely on exit == exit $?.
	* autoheader.in: Likewise.
	* autoreconf.in: Likewise.
	* tests/torture.at (Signal handling): New test for the above.

2001-06-01  Akim Demaille  <akim@epita.fr>

	* m4sugar.m4 (m4_defn, m4_undefine, m4_popdef): Clarify the error
	message.

2001-05-31  Akim Demaille  <akim@epita.fr>

	* acfunctions, acheaders, acidentifiers, acmakevars, acprograms:
	Add copyright and comments.
	* acheaders: Add stdint.h.
	Suggested by Paul Eggert.

2001-05-31  Akim Demaille  <akim@epita.fr>

	* atgeneral.m4 (AT_INIT): Use $SHELL.
	* atspecific.m4 (AT_CHECK_DEFINES): Skip HAVE_STDINT_H.

2001-05-31  Akim Demaille  <akim@epita.fr>

	* acgeneral.m4 (_AC_INCLUDES_DEFAULT_REQUIREMENTS): Include
	stdint.h.
	From Paul Eggert and Lars Hecking.

2001-05-31  Akim Demaille  <akim@epita.fr>

	* tests/base.at: Adjust line numbers in error messages.

2001-05-31  Akim Demaille  <akim@epita.fr>

	* tests/base.at, tests/m4sh.at: When using AC_PLAIN_SCRIPT be sure
	to emit the bangshe line.
	Reported by David Carter.

2001-05-30  Steven G. Johnson  <stevenj@alum.mit.edu>

	* aclang.m4 (AC_PROG_F77): Add Compaq's "fort" to the list of
	Fortran (95) compilers to check.

2001-05-29  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* doc/autoconf.texi (Introduction, Pointers): Update the Autoconf
	Macro Archive URL.

2001-05-23  Pavel Roskin  <proski@gnu.org>

	* aclang.m4 (AC_PROG_CPP): Use `break' instead of `break 2' since
	_AC_PROG_PREPROC_WORKS_IFELSE expands arguments outside the loop.
	(AC_PROG_CXXCPP): Likewise.

2001-05-22  Akim Demaille  <akim@epita.fr>

	* config: New directory.
	* configure.in: AC_CONFIG_AUX_DIR it.
	* tests/atspecific.m4 (AT_CONFIGURE_AC): Adjust.

2001-05-22  Akim Demaille  <akim@epita.fr>

	* autoconf.in, autoreconf.in, autoheader.in, autoscan.in, ifnames.in,
	* autoupdate.in: Specify the Emacs mode.
	* acversion.m4.in: Rename as...
	* acversion.m4: this.
	* tests/Makefile.am (CLEANFILES): More garbage.

2001-05-22  Akim Demaille  <akim@epita.fr>

	* autoconf.sh, autoreconf.sh, autoheader.sh, autoscan.pl, ifnames.sh:
	Rename as...
	* autoconf.in, autoreconf.in, autoheader.in, autoscan.in, ifnames.in:
	these.

2001-05-21  Akim Demaille  <akim@epita.fr>

	* configure.in: Bump to 2.50a.

-----

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