autoconf/ChangeLog

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.
	* 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  R<>diger 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.