recommend instead of --cache-file. Indent example AC_CACHE_VAL macros
for clarity. Add new "Cache Checkpointing" section for AC_CACHE_SAVE
(and AC_CACHE_LOAD), so that the "Cache Files" section focuses solely
on features visible to end-users (e.g. to better fit the cross
references). Various minor rewordings for clarity, felicity, and/or
grammar.
AC_OUTPUT_MAKE_DEFS to include junky -D switches.
Reported by Wolfgang Mueller.
* tests/torture.at (#define header templates): Include trash in
confdefs.h.
* tests/atgeneral.at (AT_INIT): Don't expect `find' to support
-maxdepth, hence don't use -follow either.
Reported by Nicolas Joly.
* acgeneral.m4 (AC_OUTPUT_MAKE_DEFS) <confdef2opt.sed>: In the
`quote' section, `p'rint the result.
If neither `#define' pattern match, just call `d' to start a new
cycle.
Call this sed program with -n.
* acfunctions.m4 (AC_FUNC_MMAP): Use conftest.mmap, not
conftestmmap.
(AC_FUNC_UTIME_NULL): Use conftest.data, not conftestdata.
* acspecific.m4 (AC_PROG_MAKE_SET): Use conftest.make, not
conftestmake.
(_AC_PATH_X_XMKMF): Use conftest.dir, not conftestdir.
* acgeneral.m4 (AC_ARG_PROGRAM): Use conftest.sed, not
conftestsed.
* m4/sanity.m4: Use conftest.file, not conftestfile.
* doc/autoconf.texi (Guidelines for Test Programs): Suggest
using conftest.data, not conftestdata.
-x' and `test -f' to avoid confusing users with error messages.
(AS_MKDIR_P): Invert order of separators in IFS to avoid problem
with some shells adding backslash between fields and parsing the
result for escapes.
* doc/autoconf.texi (Special Shell Variables): Document IFS.
* m4sugar.m4: Formatting changes.
* acgeneral.m4 (AC_DIVERT_PUSH, AC_DIVERT_POP, AC_REQUIRE)
(AC_DIAGNOSE, AC_FATAL, AC_MSG_WARN, AC_MSG_NOTICE, AC_MSG_ERROR):
Use m4_copy to define them, in order to keep a good $0.
(AC_INIT): AC_LANG_PUSH C, not AC_LANG, to initialize the stack.
* aclang.m4 (AC_LANG_PUSH): Dont't use m4_defn on undefined macros.
(AC_LANG_POP): Admit an argument specifying the language we quit
when popping.
Adjust Autoconf's AC_LANG_POPs.
* tests/tools.at (AWK portability): Don't depend on AC_INIT.
(autoconf --trace: user macros): Obviously I
meant TRACE1, not AC_TRACE1.
Suggested by Jim.
* acgeneral.m4 (_AC_INIT_DEFAULTS): Don't define
ac_includes_default, since...
(_AC_INCLUDES_DEFAULT_REQUIREMENTS): this new macro does.
(AC_INCLUDES_DEFAULT): Require the former when default includes
are used.
(AC_CHECK_MEMBERS, _AC_CHECK_TYPE_NEW): Don't require
AC_HEADERS_STDC, that's a job for stupendous AC_INCLUDES_DEFAULT.
* acfunctions.m4 (AC_FUNC_MALLOC): Check for stdlib.h.
`0'. Test and fix.
Reported by Assar Westerlund.
* Makefile.am (maintainer-check): New target.
* tests/Makefile.am (maintainer-check, maintainer-check-posix)
(maintainer-check-c++, expr): Likewise.
* configure.in (EXPR): Look for it.
* tests/atgeneral.m4 (AT_CHECK): Propagate $2's default value.
* tests/compile.at (Extensions): New test.
* aclang.m4 (_AC_COMPILER_EXEEXT_DEFAULT, _AC_COMPILER_EXEEXT_O):
Distinguish files with or without a dot.
* autoreconf.sh: Likewise.
* autoheader.sh: Ditto.
* autoupdate.sh: Similarly.
* doc/autoconf.texi: Adjust.
* tests/atspecific.m4: Be sure to remove configure.in.
Adjust the test suite to use `configure.ac'.
configure.in maintainer, but discourage its use.
* acspecific.m4 (_AC_CYGWIN, _AC_MINGW32, _AC_EMXOS2): Rename as...
(AC_CYGWIN, AC_MINGW32, AC_EMXOS2): these.
AU defined on top of AC_CANONICAL_HOST and $host_os.
* tests/mktests.sh (update_exclude_list): Add AC_CYGWIN,
AC_MINGW32, and AC_EMXOS2.
* acspecific.m4 (AC_EXEEXT, AC_OBJEXT, _AC_EXEEXT, _AC_OBJEXT):
Move as...
* aclang.m4 (AC_EXEEXT, AC_OBJEXT, _AC_COMPILER_EXEEXT)
(_AC_COMPILER_OBJEXT): these.
(_AC_COMPILER_EXEEXT): Use _AC_LINK_IFELSE.
Don't depend upon $CYGWIN and the like.
(_AC_COMPILER_OBJEXT): Model after _AC_COMPILER_EXEEXT.
Skip more extensions.
Use _AC_COMPILE_IFELSE.
arrays is nondeterministic across AWK implementations.
* tests/tools.at (autoconf: forbidden tokens): Sort the error
message to guarantee its uniqueness.
around ${foo=bar}.
(Assignments): Rewrite as a summary of the previous section.
* acgeneral.m4 (AC_CACHE_SAVE): Be protected against the Solaris'
`${foo='${bar}'}' bug.
* doc/autoconf.texi (Limitations of Usual Tools) <expr>: More
information, thanks to Paul Berrevoets, Paul Eggert and David
Morgan.
* sh.m4 (_AS_EXPR_PREPARE): New.
(AS_DIRNAME): Use it.
From Paul Eggert and Johan Danielsson.
* doc/autoconf.texi (Limitations of Usual Tools) <sed>:
Reorganize. Document this issue.
* autoupdate.sh (dir): Use `,' as separator instead of `/'
* autoreconf.sh: Likewise.
* autoupdate.sh: Ditto.
whether fseeko and ftello are properly declared.
* acfunctions.m4 (AC_FUNC_FSEEKO): New macro, which worries about
fseeko (and presumably ftello). Do not set _XOPEN_SOURCE; that
causes too many problems in practice.
* acfunctions (fteelo, fseeko): Trigger AC_FUNC_FSEEKO.
* doc/autoconf.texi: Adjust.
(Shell Substitutions, Assignments): these.
Move them before `Special Shell Variables'.
(Shell Substitutions): Include information on `$()' from Russ
Allbery.
`acconfig.h', `config.h.top', and `config.h.bot'.
Reported by Aharon Robbins.
* doc/autoconf.texi (Making configure Scripts)
(Automatic Remaking, Defining Symbols, Distributing): Forget about
these files.
(acconfig.h): Reword.
Display the old scheme presenting the dependencies between input
and output files.
(Changed File Names): Clarify.
obsolete options to stderr. Adjust list of options. Correct
processing of options. Process options with values separated by
"=" first, so that abbreviations work. Don't accept "=" with
short options.
* autoheader.sh: Likewise.
* autoreconf.sh: Likewise.
* autoupdate.sh: Likewise.
* ifnames.sh: There is no "--verbose" option.
* doc/autoconf.texi: Option "-A" requires an argument.
(autoreconf Invocation): Document "--install", "--symlink",
"--m4dir" and the options passed to Automake.
as well.
(_AC_INIT_HELP): Likewise.
(NEWS): Note checking for configure.gnu.
* doc/autoconf.texi: Document checking for configure.gnu when
recursing subdirectories.
what languages are affected by CPPFLAGS, LDFLAGS and LIBS.
Extended description of LDFLAGS and LIBS.
(Compilers and Preprocessors, C Compiler Characteristics):
Recommend Automake as the source of ansi2knr.
(Autoconf Language, Quotation and Nested Macros): English fixes.
(Quotation and Nested Macros): Unclear example replaced with
an explanation of when m4 expands quotes. Added explanation why
unquoted calls are dangerous.
function calls.
Reported by John David Anglin.
* doc/autoconf.texi (Limitations of Usual Tools): Start the AWK
section.
* tests/tools.m4 (AWK portability): New test.
operator when \(\) is used, and matches a string longer than 120
characters.
Reported by Geoff Keating.
* doc/autoconf.texi (Limitations of Usual Tools): Some words about
this.
* acgeneral.m4 (_AC_SHELL_DIRNAME): Fall back to echo|sed if expr
fails.
From Paul Eggert.
* acspecific.m4 (_AC_HEADER_TIOCGWINSZ_IN_TERMIOS_H,
_AC_HEADER_TIOCGWINSZ_IN_SYS_IOCTL, AC_HEADER_TIOCGWINSZ,
AC_SYS_POSIX_TERMIOS): New macros from both Automake and the
fileutils.
AC_CANONICAL_* revamping.
Reported by Peter Eisentraut.
In fact, let's just use the precious variables handling.
* acgeneral.m4 (AC_VALIDATE_CACHED_SYSTEM_TUPLE): Obsoleted.
(_AC_ARG_VAR_PRECIOUS): New macro, eved from...
(AC_ARG_VAR): this macro. Adjust.
(_AC_INIT_PREPARE): `build_alias', `host_alias', and
`target_alias' are precious.
* doc/autoconf.texi: Adjust.
section, Eved off from `Preset Output Variables', i.e., was a
small part of it, grew independent, and is its equal (at least).
(Coding Style): `$#' padding.
* Makefile.am (editsh, editpl): Do what the doc says you do: use
@datadir\@ instead of @''datadir''@.
way of accessing Fortran name-mangling information other than
through CPP, and without having to know the different possible
name-mangling schemes.
* autoconf.texi: Documented AC_F77_FUNC
`size_t' which are often used too.
Fix a bug which prevents recognition of `bool' and `char'.
(_AC_CHECK_TYPE_MAYBE_TYPE_P): New macro.
(AC_CHECK_TYPE): Use it.
_AC_F77_NAME_MANGLING.
(_AC_F77_NAME_MANGLING): Use independent checks for the
name mangling of symbols with and without underscores.
Use algorithm with for loops instead of recursive macro calls.
(AC_F77_WRAPPERS): Adapt to changes in _AC_F77_NAME_MANGLING.
* doc/autoconf.texi (Fortran 77 Compiler Characteristics):
Remove documentation of AC_F77_NAME_MANGLING.
Remove documentation of f77_case and f77_underscore.
Replace AC_F77_FUNC_WRAPPER with AC_F77_WRAPPERS.
Macros): Don't give boring internal details.
(Language Choice): Typo.
(Limitations of Builtins): Some about `!', `set', `$@'.
(Coding Style): Some about $[@] quotation.
Some about cross-compilation.
In fact, rename this option as -A, --autoconf-dir.
* autoconf.sh: Complain when -m, --macrodir is used.
Accept -A, --autoconf-dir.
Use $autoconf_dir instead of $AC_MACRODIR.
Adjust --help.
* autoheader.sh: Likewise.
* autoscan.sh: Likewise.
* autoupdate.sh: Likewise.
Use $optarg.
* autoreconf.sh: Likewise.
* doc/autoconf.texi: Adjust.
* tests: Adjust the test suite.
behavior of AC_CONFIG_HEADERS and AC_CONFIG_FILES with respect to
absolute and relative filenames, and stdin/stdout.
(config.status invocation): Likewise.
* autoreconf.sh (update.sh): Use `ls -1dt' instead of `-lt'.
Use test instead of sed.
<automake>: If automake is used, always run it: it has its own
mechanism not to update if unneeded.
In fact, honor the most recent specification in the concatenation
of `syntax',$WARNINGS,<options> in that order.
Implement support for `none' and `noCATEGORY' so that the options
may override the previous choices.
Suggested by Didier Verna.
* acgeneral.m4 (_AC_WARNING_IFELSE): New macro.
(AC_WARNING_IFELSE): Use this macro to implement the new specs.
(AC_WARNING): The empty category must not be used, default to
`syntax'.
* doc/autoconf.texi (autoconf Invocation, Reporting Messages): Adjust.
* autoconf.sh: Adjust.
Use `optarg' to fetch the arguments of options.
Fix a bug in the handling of `--trace='.
* acgeneral.m4 (AC_CACHE_VAL): Typo: the macro was complaining iff
it shouldn't have.
* doc/autoconf.texi: Free Franc,ois Pinard from iftex and ifinfo,
use @,c.
Don't use `@code{m4}' when you mean M4, just as you shall not say
`@code{cc}' when you refer to the C language.
* acgeneral.m4 (build_alias): Set to host_alias if --build is not
given but --host is, and enable cross-compile auto-detection. If
both are, and are different, enable cross compilation.
(AC_CANONICAL_HOST): Adjust help message.
(cross_compiling): Enclose in quotes when testing.
* aclang.m4 (_AC_LANG_COMPILER_WORKS): If cross_compiling is
maybe, set it to yes or no depending on the result of the
execution test.
* doc/autoconf.texi: Document the change.
* doc/install.texi: Likewise.
$AUTOMAKE and $ACLOCAL.
Pass --verbose to the tools.
Avoid using plenty of variables, just append to existing
variables.
* doc/autoconf.texi: List options in the order --help, --version,
--verbose, --debug, and then specific options.
(Specifying Names): When describing the system triplets, use the
same names as the shell variables.
(System Type Variables): Delete, merge its content into...
(Canonicalizing): here.
Clarify the difference between the `foo_target' and `foo'
variables.
