Paul Eggert [Wed, 14 Jun 2006 19:11:43 +0000 (19:11 +0000)]
* doc/autoconf.texi (Initializing configure, Shell Substitutions):
Warn about $@ not persisting. Problem reported by Julien Danjou in
<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=372179>.
Paul Eggert [Wed, 14 Jun 2006 05:08:20 +0000 (05:08 +0000)]
* doc/autoconf.texi: Some systematic minor improvements, as
follows. Use "makefile" when talking about makefiles
generally (which might be named "makefile" or "Makefile" or even
"foo.mk"), "Makefile" when talking about a specific makefile
called "Makefile". This unclutters the text from weird quotes
(e.g., "`Makefile's" in info mode). Similarly, use "@var{foo}
values" rather than "@var{foo}s" and similar constructs containing
"}s". Use "Make rules" rather than "Makefile rules". Minor
English-language improvements. Change the prefix "sub-" to "sub"
and "re-" to "re".
Put blank lines around examples more consistently.
Avoid "rather" and "very" as intensifiers.
Avoid "will" as an auxiliary.
(Limitations of Make): Split this node into....
(Portable Make, $< in Ordinary Make Rules, Failure in Make Rules):
(Leading _ in Macro Names, Backslash-Newline-Newline):
(Backslash-Newline Comments, Long Lines in Makefiles):
(Macros and Submakes, The Make Macro SHELL, Comments in Make Rules):
(obj/ and Make, make -k Status, VPATH and Make):
(VPATH and Double-colon, $< in Explicit Rules):
(Automatic Rule Rewriting, OSF/Tru64 Directory Magic):
(Make Target Lookup, Single Suffix Rules, Timestamps and Make):
New nodes, resulting from splitup of Limitations of Make.
All cross-references changed. Raise the top node from
a section to a chapter, and all subnodes accordingly.
Redo the introductory wording to match the new organization.
(Installation Directory Variables): Use an example that is
closer to what Autoconf actually does. Mention that VPATH's
value should not contain metacharacters or white space.
(Fortran Compiler): Fix a VPATH bug in an example.
(Leading _ in Macro Names): Mention that this problem is no longer
of practical concern.
(VPATH and Make): Reword the advice to make it clearer
that Autoconf and Automake support VPATH in non-GNU make, but
many packages have bugs in this area.
($< in Explicit Rules): Refer to Build Directories rather
than using a (non-VPATH-safe) example.
(Automatic Rule Rewriting): Mention the sort of disaster that
can ensue with Solaris-style rule rewriting with VPATH.
Ralf Wildenhues [Thu, 8 Jun 2006 17:25:10 +0000 (17:25 +0000)]
* doc/autoconf.texi (Installation Directory Variables):
Drop extra @samp from `@table @samp' item.
(Limitations of Usual Tools): Comment fix.
Do not nest @samp just to point to other table items.
(Writing testsuite.at) <AT_CHECK>: The second argument to
`@dvar' is already @samp'ed.
(Making testsuite Scripts) <AC_CONFIG_TESTDIR>: Likewise,
do not use @var in the second argument.
Paul Eggert [Wed, 7 Jun 2006 23:46:47 +0000 (23:46 +0000)]
* lib/m4sugar/m4sh.m4 (_AS_DETECT_BETTER_SHELL): Look for
$as_shell.exe too. Problem reported by Andreas Buening in
<http://lists.gnu.org/archive/html/autoconf/2006-06/msg00038.html>.
Ralf Wildenhues [Wed, 7 Jun 2006 18:24:01 +0000 (18:24 +0000)]
* lib/autoconf/functions.m4 (AC_FUNC_ALLOCA): Work around
`unused variable' compiler warning, for `-Wall -Werror'.
Report by Jaap Haitsma <jaap@haitsma.org>.
Paul Eggert [Wed, 7 Jun 2006 05:35:46 +0000 (05:35 +0000)]
* lib/autoconf/c.m4 (AC_PROG_CC_C_O): Remove core file, in
case the compiler dumps core. Problem reported for
OpenServer 5.0.7 by Tim Rice in
<http://lists.gnu.org/archive/html/bug-autoconf/2006-06/msg00019.html>.
* lib/autoconf/general.m4 (_AC_COMPILE_IFELSE, _AC_LINK_IFELSE):
Likewise.
Ralf Wildenhues [Mon, 5 Jun 2006 12:16:06 +0000 (12:16 +0000)]
* bin/autoreconf.in: Trace `LT_CONFIG_LTDL_DIR'; if it has been
seen, invoke libtoolize with `--ltdl' argument.
* lib/autom4te.in (Autoreconf-preselections): Adjust.
* NEWS: Update.
Suggested by Eric Blake.
Ralf Wildenhues [Mon, 5 Jun 2006 08:18:33 +0000 (08:18 +0000)]
* lib/m4sugar/m4sugar.m4 (m4_require): Modify the error
message issued by AC_REQUIRE.
* tests/m4sugar.at: Check m4_require's error message.
* tests/base.at: Check AC_REQUIRE's error message.
* tests/local.at (AT_CHECK_M4): New macro, almost identical
to...
(AT_CHECK_AUTOM4TE): ... which is now a thin wrapper around
AT_CHECK_M4.
(AT_CHECK_AUTOCONF): Use AT_CHECK_M4; no longer support
`expout' as the last parameter.
* tests/tools.at: Adapt to the above change.
Paul Eggert [Sun, 4 Jun 2006 07:38:28 +0000 (07:38 +0000)]
* NEWS: GNU make now recommended for VPATH builds.
Mention that some macros are now documented to be obsolescent.
* doc/autoconf.texi:
Prefer "current" to "modern" to describe
currently-used (albeit perhaps old-fashioned) hosts.
Mention which ancient features no longer need to be worried about.
setgid -> set-group-ID
setuid -> set-user-ID (these are the Posix terms)
Fix some misuses of "only".
(AC_C_BACKSLASH_A, AC_C_CONST, AC_C_PROTOTYPES):
(AC_C_STRINGIZE, AC_C_VOLATILE, AC_FUNC_CLOSEDIR_VOID):
(AC_FUNC_GETPGRP, AC_FUNC_LSTAT, AC_FUNC_MEMCMP):
(AC_FUNC_SELECT_ARGTYPES, AC_FUNC_SETPGRP):
(AC_FUNC_SETVBUF_REVERSED, AC_FUNC_STAT, AC_FUNC_STRFTIME):
(AC_FUNC_STRNLEN, AC_FUNC_UTIME_NULL, AC_FUNC_VPRINTF):
(AC_HEADER_DIRENT, AC_HEADER_STAT, AC_HEADER_STDC):
(AC_HEADER_SYS_WAIT, AC_HEADER_TIME, AC_ISC_POSIX):
(AC_PROG_GCC_TRADITIONAL, AC_STRUCT_TM):
Mention that these macros are obsolescent.
(Installation Directory Variables): shall -> should
(File Descriptors): Mention that 0, 1, 2 might get reopened.
Mention that it's now safe to use 3 and 4.
(Limitations of Usual Tools): cp -r is now specified by Posix.
Omit longwinded and obsolescent discussion of cp -f.
Modernize discussion of expr, ls.
(Limitations of Make): Modernize discussion of VPATH builds.
Mention $? as a workaround in some cases.
* doc/install.texi (Basic Installation):
Mention "./configure; make; make install" first. Be more
specific about why this file is generic. Remove unnecessary
parens. Remove misleading "only". Remove obsolete advice
about csh. Don't say "configure" takes awhile; say it
might take a while. Suggest CFLAGS=-g rather than CFLAGS=-O2,
and CC=c99 rather than CC=c89, as these are blessed by current
Posix. Recommend GNU make if doing a VPATH build.
Paul Eggert [Fri, 2 Jun 2006 22:42:32 +0000 (22:42 +0000)]
* doc/autoconf.texi (Here-Documents): Add details about the
pre-ksh93g bug. Reword slightly to make it clearer. Consistently
use "here-documents" instead of "here documents".
Paul Eggert [Wed, 31 May 2006 19:49:15 +0000 (19:49 +0000)]
* lib/autoconf/general.m4 (_AC_DO_ECHO): Be even more conservative
about quoting the case statement, just in case.
* doc/autoconf.texi (Particular Programs) <AC_PROG_MKDIR_P>:
Document that ${MKDIR_P} understands --.
* lib/autoconf/programs.m4 (AC_PROG_MKDIR_P): Improve the
comment.
Paul Eggert [Wed, 31 May 2006 01:28:06 +0000 (01:28 +0000)]
* lib/autoconf/general.m4 (_AC_DO_ECHO): Be more conservative
about quoting ac_try: quote all of it, if any of it seems suspicious.
This means we don't have to worry about ${ or sed any more.
Also, double-quote the case statement, to work around misuses via
underquoting as reported by Ralf Wildenhues in
<http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00169.html>.
(_AC_EVAL_STDERR): Revert, since evidently some packages rely on this
undocumented and dangerous macro.
Problem reported by Ralf Wildenhues in
<http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00168.html>.
Paul Eggert [Tue, 30 May 2006 07:28:01 +0000 (07:28 +0000)]
* lib/autoconf/general.m4: Revert AC_TRY_EVAL and AC_TRY_COMMAND,
since evidently some packages rely on the old, broken behavior.
Problem reported by Ralf Wildenhues in
<http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00160.html>.
(AC_TRY_EVAL, AC_TRY_COMMAND, _AC_EVAL): Go back to the
pre-2006-05-26 definitions, but leave in the comments that
these macros are dangerous and should not be used.
(_AC_DO_ECHO): Renamed from _AC_EVAL_ECHO. All callers changed.
(_AC_DO): Renamed from _AC_EVAL. All callers changed.
(_AC_DO_STDERR): Renamed from _AC_EVAL_STDERR. All callers changed.
(_AC_DO_VAR): Renamed from AC_TRY_EVAL.
(_AC_DO_TOKENS): Renamed from AC_TRY_COMMAND.
Ralf Wildenhues [Sun, 28 May 2006 12:38:49 +0000 (12:38 +0000)]
* lib/autoconf/status.m4 (_AC_OUTPUT_FILE): If we have not seen
mention of `datarootdir' in the input file(s), but literal
`${datarootdir}' in the output file, and we haven't warned yet,
then warn as well: the user may have (erroneously) used
`AC_SUBST([mydatadir], [$datadir/my])' instead of the correct
`AC_SUBST([mydatadir], ['${datadir}/my'])'.
* tests/torture.at (datarootdir workaround): Extend this test.
* NEWS: Update.
Paul Eggert [Sat, 27 May 2006 22:22:01 +0000 (22:22 +0000)]
* doc/autoconf.texi (autoheader Invocation): The first argument to
`AC_DEFINE_UNQUOTED' need not be a literal. Mention the
alternatives and clear up the language a bit.
Paul Eggert [Sat, 27 May 2006 21:59:04 +0000 (21:59 +0000)]
* NEWS: Reword notice for AC_TRY_COMMAND, AC_TRY_EVAL,
ac_config_guess, ac_config_sub, ac_configure.
* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS):
Fix typo that prevented an unnecessary space from being removed.
Problems reported by Ralf Wildenhues in:
http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00143.html
Paul Eggert [Sat, 27 May 2006 02:54:33 +0000 (02:54 +0000)]
* doc/autoconf.texi (Particular Programs, Limitations of Usual Tools):
Use better wording to talk about AC_PROG_MKDIR_P's thread-safety.
Don't use the term "thread-safe" to talk about mkdir race
conditions, since the problem is more a process than a thread
issue. Problem reported by Stepan Kasal in:
http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00088.html
* lib/autoconf/programs.m4 (AC_PROG_MKDIR_P): Use code that mimics
the test for 'install' more closely. Look at MKDIR_P first.
Look in the PATH, and at /opt/sfw/bin.
Look for a 'gmkdir' program as well (Solaris 10 /opt/sfw/bin/gmkdir).
Don't bother to try mkdir -p, since we already check mkdir --version;
just look at the version number. (There's no easy way to check
for race-free implementations.)
* tests/tools.at (autoconf: subdirectories): Adjust to above
changes, since MKDIR_P now might end in "/mkdir -p".
Paul Eggert [Fri, 26 May 2006 22:29:50 +0000 (22:29 +0000)]
* NEWS: Mention that AC_TRY_COMMAND and AC_TRY_EVAL may be removed.
* doc/autoconf.texi (Special Chars in Variables): New section.
(Preset Output Variables): Warn about special chars in CPPFLAGS.
(Installation Directory Variables): Quote $(datadir) better.
(Limitations of Builtins): Describe some of eval's trickiness.
* lib/autoconf/c.m4 (AC_PROG_CC_C_O): Simplify quoting.
* lib/autoconf/fortram.m4 (_AC_PROG_FC_V_OUTPUT): Likewise.
* lib/autoconf/general.m4 (_AC_INIT_PREPARE): Put leading space
in front of every arg, not just trailing args. Quote apostrophes.
(_AC_EVAL_ECHO): New macro.
(_AC_EVAL, AC_EVAL_STDERR): Use it. Quote arg of eval.
(AC_TRY_EVAL, AC_TRY_COMMAND): Mention that these macros might get
removed.
(_AC_LINK_IFELSE): Use proper rule for shell continuation lines,
exposed by quoting of eval argument. Put the command on line line
so it logs better.
* lib/autoconf/libs.m4 (_AC_PATH_X_XMKMF): Use eval more safely.
(_AC_PATH_X, AC_PATH_X): Quote more safely.
* lib/autoconf/programs.m4 (AC_PROG_MAKE_SET): Use eval more safely.
* lib/autoconf/specific.m4 (AC_SYS_LONG_FILE_NAMES): Don't use eval.
* lib/autoconf/status.m4 (_AC_OUTPUT_SUBDIRS): Minor style change.
Handle special chars in prefix, ac_srcdir, ac_aux_dir.
Use eval more safely.
(_AC_OUTPUT_CONFIG_STATUS): Adjust to above changes.
* lib/m4sugar/m4sh.m4 (AS_VAR_GET): Note that this API needs
to be replaced.
* tests/base.at (AC_TRY_COMMAND): Use proper rule for shell continuation
lines, exposed by quoting of eval argument.
Ralf Wildenhues [Fri, 26 May 2006 17:25:35 +0000 (17:25 +0000)]
* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Drop the
initialization of `ac_cv_exeext', do not override it if it was
already set, unless it was set to `no', for compatibility with
Autoconf-2.13, and comment this.
Do not export `ac_cv_exeext', Libtool hasn't needed this for years.
(_AC_COMPILER_EXEEXT_DEFAULT): Likewise, do not export it.
(_AC_COMPILER_EXEEXT_WORKS, _AC_COMPILER_EXEEXT_CROSS): Typos.
* doc/autoconf.texi (Compilers and Preprocessors) <EXEEXT>:
Document that this test may be overridden by setting
`ac_cv_exeext'.
2006-04-01 Stepan Kasal <kasal@ucw.cz>
Clean up _AC_COMPILER_EXEEXT* macros.
* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Don't try to
detect exeext, it will be done by _AC_COMPILER_EXEEXT_O; just set
ac_file to the name of the default output file and call
_AC_COMPILER_EXEEXT_WORKS. Move the definition of ac_files and the
initial `rm' of the candidate files...
(_AC_COMPILER_EXEEXT): ... here and simplify them. Moreover, use
the same list in subsequent `rm' calls, and for the temporary
redefinition of ac_clean_files; call _AC_COMPILER_OBJEXT at the end,
and don't call the other _AC_COMPILER_EXEEXT_* macros directly, use...
(_AC_COMPILER_EXEEXT_TESTS): ... this new macro.
(_AC_COMPILER_EXEEXT_O): Don't export ac_cv_exeext, it's not needed (or
no longer needed) by libtool. Make it a cache check.
(_AC_COMPILER_EXEEXT_CROSS): Remove the comment, it was obviously
copied here by mistake.
(AC_NO_EXECUTABLES): Redefine _AC_COMPILER_EXEEXT_TESTS, not
_AC_COMPILER_EXEEXT.
* lib/autoconf/c.m4 (AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC): Do not call
_AC_COMPILER_OBJEXT directly.
* lib/autoconf/fortran.m4 (_AC_PROG_FC): Likewise.
Ralf Wildenhues [Thu, 25 May 2006 10:25:44 +0000 (10:25 +0000)]
Sync from Automake:
* lib/Autom4te/XFile.pm (lock): Allow EOPNOTSUPP, besides
ENOLCK. Only mention `make -j' when applicable. Only raise
fatal errors when `make -j' is involved. Improve error message.
Ralf Wildenhues [Wed, 24 May 2006 03:46:00 +0000 (03:46 +0000)]
* tests/autotest.at (Multiline command from M4 expansion):
No failure to be expected if the shell quotes newlines in
commands in the `set -x' output. Report by Tim Rice.
* THANKS: Update.
Paul Eggert [Tue, 23 May 2006 23:30:57 +0000 (23:30 +0000)]
Fix a bug in the previous patch: it assumed that echo '...\...' had
the BSD interpretation rather than the SysV interpretation. Use
a short here-document instead.
Paul Eggert [Tue, 23 May 2006 23:07:50 +0000 (23:07 +0000)]
* lib/autoconf/status.m4 (_AC_OUTPUT_HEADER): Don't use shell
expansion in the here-documents used by config.status, as that
runs afoul of the Korn shell version M-12/28/93d bug described in
the Autoconf manual, and this in turn causes a Coreutils 5.95 build to
fail as described by Tim Rice and diagnosed by Ralf Wildenhues in
<http://lists.gnu.org/archive/html/bug-autoconf/2006-05/msg00082.html>.
Paul Eggert [Tue, 23 May 2006 08:27:32 +0000 (08:27 +0000)]
* lib/autoconf/status.m4 (_AC_OUTPUT_HEADER): Simplify ac_dA and
ac_dB slightly, to save bytes in the script.
Max out at 50 lines, rather than 96; this is more likely
(though not guaranteed) to avoid obscure 'sed' failures.
Ralf Wildenhues [Tue, 23 May 2006 04:44:27 +0000 (04:44 +0000)]
* lib/autotest/general.m4 (AT_INIT): UnixWare `tr' may interpret
`tr -d -' as bad option argument. Work around this by deleting
an unrelated character.
Report by Tim Rice <tim@multitalents.net>.
Paul Eggert [Mon, 22 May 2006 17:27:50 +0000 (17:27 +0000)]
* doc/autoconf.texi (Particular Programs): Do not promise that
we always prefer the GNU version of the program, and that we
search according to PATH; both rules can have exceptions.
Update description of AC_PROG_GREP, AC_PROG_EGREP, AC_PROG_FGREP,
AC_PROG_SED. Move descriptions of limitations
to the Limitations of Usual Tools section.
(Limitations of Usual Tools) <sed>: Mention script length
limitations with Solaris /usr/ucb/sed.
<grep>: Fix wording for empty alternative. Mention that -c and
-l should not be combined, and that -E and -F should not be
combined.
Stepan Kasal [Mon, 22 May 2006 15:54:09 +0000 (15:54 +0000)]
* doc/autoconf.texi (Defining Symbols): Literal parameter of
AC_DEFINE is now passed to m4_pattern_allow.
* NEWS: Mention that; likewise for AC_SUBST.
* lib/autoconf/general.m4 (AC_DEFINE_TRACE_LITERAL): Pass
the parameter to m4_pattern_allow.
* tests/tools.at: Add a check for that.
Stepan Kasal [Mon, 22 May 2006 10:28:33 +0000 (10:28 +0000)]
* 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.
Paul Eggert [Mon, 22 May 2006 04:45:03 +0000 (04:45 +0000)]
* lib/autoconf/functions.m4 (AC_FUNC_GETMNTENT):
Import the following fix from coreutils:
2006-01-13 Jim Meyering <jim@meyering.net>
Invoke AC_CHECK_FUNCS(getmntent) unconditionally so that tests of
$ac_cv_func_getmntent (e.g., in gl_LIST_MOUNTED_FILE_SYSTEMS) need
not double-quote uses of that variable, to accommodate the rare
case in which getmntent is available in none of the libraries
checked. This happens at least on FreeBSD 5.0.
Paul Eggert [Sun, 21 May 2006 00:19:42 +0000 (00:19 +0000)]
* 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.
Paul Eggert [Fri, 19 May 2006 21:02:10 +0000 (21:02 +0000)]
* 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.
Paul Eggert [Fri, 19 May 2006 04:14:13 +0000 (04:14 +0000)]
* 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
Paul Eggert [Mon, 15 May 2006 02:22:28 +0000 (02:22 +0000)]
* 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>.
Paul Eggert [Sat, 13 May 2006 09:54:51 +0000 (09:54 +0000)]
* 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.
Paul Eggert [Thu, 11 May 2006 19:43:58 +0000 (19:43 +0000)]
Sync from Automake, as follows:
2006-05-11 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* config/install-sh: Initialize IFS, so field splitting isn't
turned off later.
* config/mkinstalldirs: Likewise.
* config/missing: Remove superfluous quotes. Replace all uses of
`[' by `test', for consistency, and for..
* config/missing (sed_minuso, sed_output): New variables.
(autom4te, help2man, makeinfo): Use them. Unifies detection of
`-o FILE', `--output FILE', `--output=FILE', stricter regex.
Fixes `missing' to detect `--output' for help2man. Fixes
PR automake/483. Report by Dennis J. Linse.
(autom4te): Document in `missing --help'.
Paul Eggert [Wed, 10 May 2006 23:05:15 +0000 (23:05 +0000)]
* 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/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.
* 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.