changelog

autoconf是一个产生可以自动配置源代码包

	* tests/tools.at: Add a check for that.

2006-05-22  Stepan Kasal  <[e-mail]>

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

2006-05-21  Ralf Wildenhues  <[e-mail]>

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

2006-05-21  Paul Eggert  <[e-mail]>

	* 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  <[e-mail]>

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

	2006-01-13  Jim Meyering  <[e-mail]>

	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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

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

2006-05-17  Olly Betts  <[e-mail]>  (tiny change)
	and Ralf Wildenhues  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

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

2006-05-14  Paul Eggert  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	Sync from Automake, as follows:

	2006-05-11  Ralf Wildenhues  <[e-mail]>
	* 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  <[e-mail]>

	* 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  <[e-mail]>
	and Paul Eggert  <[e-mail]>

	* 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  <[e-mail]>

	* config/install-sh: Update to Automake CVS version, as follows:
	2006-04-25  Stepan Kasal  <[e-mail]>
	* lib/install-sh: Simplify the expr implementation of dirname.
	2006-04-24  Paul Eggert  <[e-mail]>
	* lib/install-sh: Handle --, and diagnose unknown options.

2006-05-09  Ralf Wildenhues  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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
	<[e-mail]> and Andrew Church <[e-mail]>.

	* 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  <[e-mail]>

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

2006-05-03  Bruno Haible  <[e-mail]>

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

2006-05-02  Paul Eggert  <[e-mail]>

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

2006-05-02  Paul Eggert  <[e-mail]>
	and Bruno Haible  <[e-mail]>

	* 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  <[e-mail]>

	* 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 [e-mail].

2006-05-01  Paul Eggert  <[e-mail]>
	and Ralf Wildenhues  <[e-mail]>

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

2006-04-30  Ralf Wildenhues  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

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

2006-04-25  Paul Eggert  <[e-mail]>

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

2006-04-23  Paul Eggert  <[e-mail]>

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