-- vile:fk=utf-8
2025-01-26  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20250126.

	fix a regression with c89

2024-06-18  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20240618.

	modify line-continuation handling in AC_SUBST to accept input which
	has no trailing backslashes.

2024-04-06  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20240406.

	warn about any of the plethora of groff-specific options which are not
	supported

	initialize the dummy variable in AC_TYPE_SIGNAL (Urs Janßen).

2023-12-10  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20231210.

	fix warning about cast in AC_CHECK_DECL.

2023-12-03  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20231203.

	spelling fixes, with codespell

	fix warning about nonzero pointer in AC_FUNC_FSEEKO.

	fix a few unused-variable warnings in AC_C_CONST.

	use void-parameter prototype in AC_C_INLINE.

	use void-parameter prototype in AC_LANG_CALL(C), to reduce strict
	compiler warnings in existence-checks, noting this will break some
	checks, e.g., where a built-in prototype is used by a compiler.

	updated config/config.{guess,sub}

2023-09-03  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20230903.

	trim mentions of automake and aclocal, since unused (Debian #1035621).

        fix a sign-extension bug in AC_FUNC_MKTIME which caused the test to run
        longer than necessary.

	amend fixes for $EGREP and $FGREP to work with Solaris 10 /bin/sh

	improve rules for generating tests and cleanup in tests/Makefile.in

	omit AC_PROG_FGREP from acspecific.at, to match output from mktests.sh
	(Debian #1043105).

	updated config/config.{guess,sub}, install-sh

2023-01-14  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20230114.

	modify AC_CHECK_DECL, AC_PROG_CC_STDC, AC_STRUCT_TM, and
	AC_TYPE_SIGNAL to reduce compiler warnings.

2022-12-02  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20221202.

	modify AC_TYPE_GETGROUPS to use AC_INCLUDES_DEFAULT

	modify AC_FUNC_STRTOD to use stdlib.h, amend check to reduce compiler
	warnings.

	modify AC_FUNC_CLOSEDIR_VOID to reduce compiler warnings.

2022-10-09  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20221009.

	improve workaround for GNU grep 3.8 by requiring egrep/fgrep checks
	for AC_OUTPUT.

	corrected shell script for passing detected egrep/fgrep into
	config.status

2022-10-01  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20221001.

	work around warning messages from GNU grep 3.8 for egrep and fgrep.

	fix some shellcheck warnings in the generated config.status

	updated config/config.{guess,sub}

2021-05-09  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20210509.

	quiet a configure-time compile warning using a cast (report by Miroslav
	Lichvar).

	updated config/config.{guess,sub}

2021-01-05  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20210105.

	Add ToD to tests/aclocal.m4 filtering for NetBSD's sh.

	Corrected check when no fgrep or egrep is found.

	Fix typo in generated shell-functions message-prefix.

	Update tests/aclocal.m4 for g77.

2021-01-01  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20210101.

	Modify mktests.sh to work with the configured egrep.

	Add quotes, etc., to appease some of shellcheck's warnings; most are
	false positives.

	Add autoconf option "--opt-functions" to optionally generate part of
	the checks for compile/link/run in shell-functions, to reduce the
	number of false-positives reported by shellcheck in its advice for
	the eval feature.

	Fix regression in adaptation of egrep check.

2020-12-28  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20201228.

	Adapt AC_PROG_GREP, AC_PROG_EGREP, AC_PROG_FGREP from "official"
	branch, to address shellcheck warnings.

	Add quotes, etc., to appease some of shellcheck's warnings; most are
	false positives.

	updated config/config.{guess,sub}

2020-08-02  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20200802.

	Unset CLICOLOR_FORCE and GREP_OPTIONS environment variables (report by
	"Victor").

2020-01-11  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20200111.

	Check/display m4's version in AC_PROG_GNU_M4

	Add /opt/local and /opt/X11 paths for recent MacOS configurations.

	Check for byacc before bison, etc., for consistency with mawk, etc.

2019-09-01  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20190901.

	Correct version in generated manpages (report by Sven Joachim).

2019-08-28  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20190828.

	Add X11R7 include/lib paths for some older NetBSD configurations.

	Drop "fc" from Fortran77 choices, to work with modern Unix systems.

2018-10-06  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20181006.

	Adapt changes from autoconf in 2002, etc., to work around optimization
	in AC_LANG_FUNC_LINK_TRY.  The workaround in 2012-03-03 is not needed.

2018-08-19  Thomas E. Dickey <dickey@invisible-island.net>
	Version 2.52.20180819.

	Recognize recent cruft "--runstatedir" which has made its way into
	packager's boilerplate, notwithstanding the blatant inconsistency with
	actual usage (Debian #887390).

	Fix some warnings in test-packages.

2017-05-01  Thomas Dickey <dickey@invisible-island.net>
	Version 2.52.20170501.

	fix "make check" to work with OSX.

	Modify test-program stubs to reduce compiler warnings.

	updated config/config.{guess,sub}

2015-09-26  Thomas Dickey <dickey@invisible-island.net>
	Version 2.52.20150926.

	Workaround for splitting sed script in config.status when the script
	contains multiline values.

2014-12-04  Thomas Dickey <dickey@invisible-island.net>
	Version 2.52.20141204.

	Minor tweak to work around breakage in one of the "dash" variants.

2012-10-02  Thomas Dickey <dickey@invisible-island.net>
	Version 2.52.20121002.

	Modify autoheader to discard parameter lists on the assignments to
	ac_verbatim_XXX variables to work with GCC_PRINTFLIKE, similar
	macros.

2012-09-29  Thomas Dickey <dickey@invisible-island.net>
	Version 2.52.20120929.

	Modify grep pattern used to detect variables never set to allow
	matches with lines such as
		: ${name:=value}

	The last update used '/' in a sed command where a pathname might be
	also be found; change to ','.

2012-09-23  Thomas Dickey <dickey@invisible-island.net>
	Version 2.52.20120923.

	improve handling of overlooked datarootdir (prompted by Adrian Bunk
	comments).

2012-09-22  Thomas Dickey <dickey@invisible-island.net>
	Version 2.52.20120922.

	add checks for unsubstituted variables, e.g., datarootdir.

2012-08-11  Thomas Dickey <dickey@invisible-island.net>
	Version 2.52.20120811.

	add support for --datarootdir, which changes the default location for
	infodir and mandir.
	
2012-03-10  Thomas Dickey <dickey@invisible-island.net>

	Version 2.52.20120310.

	no code change - regenerate files to ensure their versions are
	consistent (report by Sven Joachim).

2012-03-03  Thomas Dickey <dickey@invisible-island.net>

	Version 2.52.20120303.

	modify AC_LANG_FUNC_LINK_TRY to ensure that the external function's
	address is nonnull, to work around breakage in Intel compiler's use of
	linker.

2010-10-02  Thomas Dickey <dickey@invisible-island.net>

	Version 2.52.20101002.

	add build-depends to dpkg script (report by Sven Joachim).

	drop manpages for config.guess and config.sub, not provided by this
	package (report by Sven Joachim).

	add build-scripts for Debian and RPM packages.

	add configure check for install-info, to work with Debian's renaming
	of this utility.

	drop mkinstalldirs, use "mkdir -p"

	remove tests/foreign.at, since libtool is not a dependency of autoconf
	(report by Sven Joachim).

	update bug-reporting address.

	remove usage of automake; it is not used to maintain this package,
	and owing to automake's absence of design stability is only a nuisance.

2010-08-14  Thomas Dickey <dickey@invisible-island.net>

	Version 2.52.20100814.

	Modify test-cleanup to also remove conftest.dSYM, to quiet misleading
	warnings with Mac OS X.

2010-05-30  Thomas Dickey <dickey@invisible-island.net>

	Version 2.52.20100530.

	change some ISO-8859-1 encoded comments to UTF-8 to allow this to
	build with a UTF-8 locale (GNU sed chokes on the mis-encoded byte).

	add check in _AC_OUTPUT_COMMANDS to ensure it does not generate an
	empty case-statement, which gives a warning in NetBSD's shell.

	change m4exit(-1) to m4exit(1) in autoconf.in, to work around incorrect
	range check added in GNU m4 1.4.6

2010-03-20  Thomas Dickey <dickey@invisible-island.net>

	Version 2.52.20100320.

	Update check for lex to include "reflex".

2008-12-25  Thomas Dickey <dickey@invisible-island.net>

	Version 2.52.20081225.

	Extend suffixes ignored when looking for executable produced by
	C compiler (based on patch from Paul Gilmartin).

2008-03-25  Thomas Dickey <dickey@invisible-island.net>

	Modify _AC_PATH_X_XMKMF and _AC_PATH_X_DIRECT, adding "dylib"
	(for Mac OS X) and "dll" (Cygwin) to suffix lists.  These macros
	depend on finding the exact filename for libX11 (if xmkmf exists
	and does not return an error), otherwise one must supply explicit
	paths for include- and library-directories (reported by Jeremy
	Huddleston).

2006-12-16  Thomas Dickey <dickey@invisible-island.net>

	Replace exit() calls in test compiles with $ac_main_return, to allow
	for override in case of old platforms relying on the use of exit()
	vs return.

2006-12-09  Thomas Dickey <dickey@invisible-island.net>

	Disable the workaround for mis-prototyped 'exit()' in GNU libc
	which made its way into autoconf's configure definitions (and thence
	into the auto-generated config.h).  Its include of <stdlib.h> caused
	redefinition warnings on Solaris.

2003-02-08  Thomas Dickey <dickey@invisible-island.net>

	Repair AC_PROG_GCC_TRADITIONAL, which is broken by the combination of a
	syntactically incorrect test statement with the inclusion of
	<stdlib.h>.  In particular, the test fails on Mac OS X (report by
	Gerben Wierda <Sherlock@rna.nl>).

2001-12-27  Thomas Dickey <dickey@invisible-island.net>

	Restore behavior of autoconf 2.13 to handle trailing blanks (and
	inline comments) in config.hin

2001-12-01  Thomas Dickey <dickey@invisible-island.net>

	Modify version number (e.g., to the 8-character yyyymmdd 20011201) to
	avoid confusion.  (This version of autoconf fixes bugs and some design
	defects which make it unsuitable for my use, but is compatible with
	autoconf 2.50).

	Improvements:

	+ modify the AC_OUTPUT macro by allowing it to generate the contents
	  of the config.h file rather than simply substituting in a template.
	  (This requires adding AC_SETUP_DEFS() as well).

	+ add utility macro AC_DIVERT_HELP to add text to the
	  enable/with options list.

	Fixes:

	+ Correct error in top-level Makefile.in which prevented "make
	  distclean" when the file was not writable (a bug in automake
	  causes it to regenerate some of the makefile templates). 
	  Make sure the file is writable, as a workaround.

	+ Remove the --include-deps option from automake in the top-level
	  Makefile.in, which also prevented builds from pristine source.

	+ Tidy up the alignment in the boilerplate for --help, correct some
	  spelling errors.

-------------------------------------------------------------------------------

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  Rüdiger 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.
