Paul Eggert [Tue, 24 Aug 2010 21:03:32 +0000 (14:03 -0700)]
AC_HEADER_STDBOOL: avoid spurious failure with modern xlc
* lib/autoconf/headers.m4 (AC_HEADER_STDBOOL): Move the "bool e =
&s;" test into the main program, as C99 might plausibly be
interpreted as not requiring support for this construction in
static initializers. Remove the "#if defined __xlc__" stuff, as
the bug is not present in recent xlc implementations, and they
reject the test for other (valid) reasons. People using ancient
xlc versions, if any, are suggested to update to fixed versions.
Reported by Ralf Wildenhues in the thread starting at:
http://lists.gnu.org/archive/html/bug-autoconf/2010-08/msg00103.html
Eric Blake [Mon, 23 Aug 2010 20:35:48 +0000 (14:35 -0600)]
AC_HEADER_STDBOOL: avoid spurious clang failure
* lib/autoconf/headers.m4 (AC_HEADER_STDBOOL): Drop gcc (and by
extension clang) check in favor of a gnulib test. Force failure,
rather than merely testing for a compiler extension.
* THANKS: Update.
Reported by Anders Kaseorg.
autoreconf: mention the AUTOM4TE environment variable
* doc/autoconf.texi (Using autoreconf to Update configure
Scripts): List `AUTOM4TE' among the environment variables
honored by autoreconf.
* bin/autoreconf.in ($help): Likewise.
Eric Blake [Tue, 17 Aug 2010 14:17:36 +0000 (08:17 -0600)]
doc: improve AS_VAR_IF details
* doc/autoconf.texi (Polymorphic Variables) <AS_VAR_IF>: Make it
clear that user must supply quotes as needed.
* THANKS: Update.
Suggested by Randall Cotton.
Ralf Wildenhues [Mon, 16 Aug 2010 19:14:20 +0000 (21:14 +0200)]
Fix Autotest --errexit to exit after XPASSing tests.
* lib/autotest/general.m4 (AT_INIT) <at_fn_group_postprocess>:
Exit after an unexpected passing test if $at_errexit.
* tests/autotest.at (errexit): Also try tests that xpass, skip,
xfail, or fail hard.
Peter Rosin [Tue, 10 Aug 2010 21:08:03 +0000 (23:08 +0200)]
autotest: keep testsuite files on unexpected pass
* lib/autotest/general.m4 (AT_INIT) <at_fn_group_postprocess>:
Don't cleanup the group directory when a test unexpectedly passes.
* tests/autotest.at (Cleanup): Check that an unexpected pass leaves
the test group directory intact.
Ralf Wildenhues [Tue, 10 Aug 2010 20:45:49 +0000 (22:45 +0200)]
Skip AC_FC_SRCEXT([f90]) tests with a Fortran 77 compiler in $FC.
* tests/fortran.at (AC_FC_FREEFORM with AC_FC_SRCEXT)
(AC_FC_FIXEDFORM with AC_FC_SRCEXT): Skip if the compiler cannot
handle files with .f90 extension.
Report by Luke Dalessandro.
Bruno Haible [Thu, 5 Aug 2010 11:26:40 +0000 (13:26 +0200)]
AC_FUNC_ALLOCA: modernize
* lib/autoconf/functions.m4 (AC_FUNC_ALLOCA): Assume that alloca's
return type is 'void *', not 'char *'. Supply C89 prototype.
Reported by Thomas Klausner.
Ralf Wildenhues [Wed, 4 Aug 2010 19:04:05 +0000 (21:04 +0200)]
Fix testsuite failure due to bugs in third-party aclocal macros.
* tests/torture.at (Non-literal AC_CONFIG_SUBDIRS): Create a
hand-written aclocal.m4 file, so the -Werror test doesn't fail
over aclocal warnings about errors in third-party macro files.
Simplify test accordingly, calling autoreconf throughout.
Report by Bob Friesenhahn.
Ralf Wildenhues [Wed, 4 Aug 2010 18:31:06 +0000 (20:31 +0200)]
Fix AC_LANG_SOURCE and AC_LANG_PROGRAM tests.
* tests/compile.at (AC_LANG_SOURCE example)
(AC_LANG_PROGRAM example): Fix broken sed script for
extracting the interesting part of the conftest.c file.
Fixes test failure on Haiku.
* THANKS: Update.
Report by Scott McCreary.
Ralf Wildenhues [Mon, 2 Aug 2010 19:10:00 +0000 (21:10 +0200)]
Ensure unnamed test group categories are separated from previous.
* doc/autoconf.texi (Writing Testsuites) <AT_BANNER>: Update
description.
* lib/autotest/general.m4 (AT_INIT) <at_fn_banner>: Set banner
to single space, not empty line, once printed. For empty
banners, print a single empty line to separate them from a
previous test group category.
* tests/autotest.at (Banners): Insert another test group; adjust
tests accordingly. Extend test to cover semantic change.
* NEWS: Update.
Eric Blake [Wed, 21 Jul 2010 16:31:52 +0000 (10:31 -0600)]
Prepare for release.
* maint.mk (PREV_VERSION_REGEXP): New macro, missed when
backporting update-NEWS_hash from gnulib.
* cfg.mk (old_NEWS_hash): Correctly generate.
* build-aux/gendocs.sh: Temporarily break sync from upstream, to
avoid including spurious directories in info source tarball.
Eric Blake [Wed, 21 Jul 2010 21:57:42 +0000 (15:57 -0600)]
Avoid spurious testsuite failures.
* doc/autoconf.texi (Generating Sources): Don't mix gcc '-E' and
'-o -', since the former already implies stdout, while the latter
creates -.exe on cygwin.
* tests/compile.at (AC_LANG_SOURCE example)
(AC_LANG_PROGRAM example): Likewise. Also prevent any config.site
interference.
Eric Blake [Wed, 21 Jul 2010 19:51:14 +0000 (13:51 -0600)]
Partially revert previous patch.
* lib/autotest/general.m4 (AT_INIT) <serial testing>: Changing
at_jobs here breaks output if -j2 was requested but shell is
insufficient to support parallel testing.
Reported by Ralf Wildenhues.
Eric Blake [Wed, 21 Jul 2010 13:51:24 +0000 (07:51 -0600)]
Minor testsuite size reduction.
* lib/autotest/general.m4 (AT_INIT) <serial testing>: Ensure
at_jobs is 1.
(AT_SETUP, AT_CLEANUP): Factor initialization code...
(AT_INIT) <at_fn_group_banner>: ...into new function.
Based in part on suggestion by Ralf Wildenhues.
Eric Blake [Wed, 21 Jul 2010 04:11:14 +0000 (22:11 -0600)]
Close job control fd before running tests.
* doc/autoconf.texi (File Descriptors): Clarify limitations.
* lib/autotest/general.m4 (AT_CLEANUP): Avoid leaking job control
fifo fd to user tests.
(AT_INIT): Delete comment, now that close is done elsewhere.
Suggested by Ralf Wildenhues.
Eric Blake [Wed, 21 Jul 2010 03:14:14 +0000 (21:14 -0600)]
Plug race in parallel autotest.
* lib/autotest/general.m4 (AT_INIT) <Fifo job dispatcher>: Track
two fds to fifo in parent, to avoid race where parent can see EOF
before child opens fifo. Avoid any atomicity problems with tokens
larger than one byte.
* NEWS: Document the bug fix.
Eric Blake [Tue, 20 Jul 2010 13:43:56 +0000 (07:43 -0600)]
Also reject ' and newline from AC_INIT strings.
* lib/autoconf/general.m4 (_AC_INIT_LITERAL): Reject a couple more
problematic characters.
* tests/base.at (AC_INIT with unusual version strings): Enhance
test.
* doc/autoconf.texi (Initializing configure) <AC_INIT>: Further
clarifications, and clean up wording about use of m4_esyscmd.
* NEWS: Update previous news entry.
Suggested by Paolo Bonzini.
Let autoreconf pass warning flags to new-enough aclocal.
* bin/autoreconf.in ($aclocal_supports_warnings)
($automake_supports_warnings): New globals.
(parse_args): Set and use them. Be sure to invoke `aclocal
--help' and `automake --help' just once each.
* NEWS: Update.
Prompted by report from Bruno Haible.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de> Signed-off-by: Eric Blake <eblake@redhat.com>
Fix parsing of empty variable settings on the command line.
* lib/autoconf/general.m4 (_AC_INIT_PARSE_ARGS): Work around
expr bug returning 0 instead of the empty string.
* lib/autotest/general.m4 (AT_INIT): Likewise.
Eric Blake [Mon, 19 Jul 2010 22:39:45 +0000 (16:39 -0600)]
Fix up AC_INIT vs. " issues, and document it.
* doc/autoconf.texi (Initializing configure): Improve
documentation on argument restrictions.
* NEWS: Tweak information.
* lib/autoconf/general.m4 (_AC_INIT_GENERAL): New macro, that also
rejects literal ".
(_AC_INIT_PACKAGE): Use it to plug hole in last patch.
* tests/base.at (AC_INIT with unusual version strings): Enhance
test.
Relax AC_INIT requirements for PACKAGE and VERSION strings again.
* lib/m4sugar/m4sh.m4 (AS_LITERAL_HEREDOC_IF): New macro.
(_AS_LITERAL_HEREDOC_IF, _AS_LITERAL_HEREDOC_IF_YES)
(_AS_LITERAL_HEREDOC_IF_NO): New helper macros.
* lib/autoconf/general.m4 (_AC_INIT_PACKAGE): Use
AS_LITERAL_HEREDOC_IF for PACKAGE and VERSION strings.
* tests/base.at (AC_INIT with unusual version strings): New test.
* tests/m4sh.at (AS@&t@_LITERAL_IF): Extend test.
* NEWS: Update.
Allow inspecting AC_PREPROC_IFELSE output in true branch.
* lib/autoconf/general.m4 (_AC_PREPROC_IFELSE_BODY): Redirect
preprocessor output to conftest.i rather than /dev/null.
(_AC_PREPROC_IFELSE): Remove conftest.i in the postprocessing.
* tests/compile.at (Order of user actions and cleanup): Extend
test in the ACTION-IF-TRUE branch.
* doc/autoconf.texi (Running the Preprocessor): Document new
feature.
* NEWS: Update.
manual: compiler flags -D and -L should not be followed by space
* doc/autoconf.texi (Preset Output Variables): Remove space
between -D and -L flags and their arguments, traditional cpp
implementations like Solaris 10, IRIX 6.5, OSF Tru64 5.1D,
AIX 5.3 do not accept it.
Eric Blake [Tue, 6 Jul 2010 20:00:44 +0000 (22:00 +0200)]
Fix regression of AC_CHECK_SIZEOF on pointer types.
* lib/autoconf/types.m4 (AC_CHECK_SIZEOF): Translate `*' to `p'
when checking literal-ness of the type, for pointer types.
* lib/m4sugar/m4sh.m4 (_AS_TR_SH): Also consider `*' as literal.
(_AS_TR_CPP): Likewise.
* tests/semantics.at (AC_CHECK_ALIGNOF struct): When checking
for numeric answer, be sure to not allow variable references.
(AC_CHECK_SIZEOF struct): Likewise. Also, test the
`AC_CHECK_SIZEOF([int *])' example from the manual.
* doc/autoconf.texi (Generic Compiler Characteristics): Add
example marker.
* NEWS: Update.
Reports by Nishio Futoshi and Roberto Bagnara.
Fix regression of AC_CONFIG_SUBDIRS with multiple arguments.
* lib/autoconf/status.m4 (AC_CONFIG_SUBDIRS): Do not assume the
argument is a single word.
* tests/torture.at (Deep Package): Extend test to cover this.
(Non-literal AC_CONFIG_SUBDIRS): New test.
* doc/autoconf.texi (Subdirectories): Add example marker.
* NEWS: Update.
Report by Bruno Haible.
* tests/torture.at (Torturing config.status)
(Substitute a 2000-byte string)
(Substitute and define special characters)
(Substitute a newline): Quote first argument in for list so
that it does not look like an assignment.
Eric Blake [Fri, 2 Jul 2010 21:35:45 +0000 (15:35 -0600)]
Make AS_TR_SH and AS_TR_CPP similar.
* lib/m4sugar/m4sh.m4 (_AS_TR_CPP_LITERAL): Avoid underquoting.
(_AS_TR_CPP_INDIR): Handle all polymorphic variables.
* tests/m4sh.at (AS@&t@_TR_SH and AS@&t@_TR_CPP): New test.
* NEWS: Document the fix.
Reported by Bruno Haible.
Eric Blake [Fri, 2 Jul 2010 20:03:50 +0000 (14:03 -0600)]
Reduce startup cost of autotest.
* lib/autotest/general.m4 (_AT_FINISH) <banners>: Rather than
doing a recursive find, limit ourselves to top ChangeLog only.
Reported by Ralf Wildenhues.
Ralf Wildenhues [Mon, 28 Jun 2010 22:15:25 +0000 (00:15 +0200)]
New macro AC_FC_FIXEDFORM, improved AC_FC_FREEFORM, coverage.
* lib/autoconf/fortran.m4 (_AC_FC_DIALECT_YEAR): Fix typo in
comment.
(AC_FC_FREEFORM): Update list of known options for Sun, HP,
Lahey/Fujitsu Fortran compilers. Use M4 quoting consistently.
(AC_FC_FIXEDFORM): New macro.
* tests/fortran.at (AC_FC_DUMMY_MAIN usage, AC_FC_MAIN usage):
Use AC_FC_FIXEDFORM, to avoid testsuite failure with FC=xlf95.
(AC_FC_FREEFORM with AC_FC_SRCEXT, AC_FC_FIXEDFORM)
(AC_FC_FIXEDFORM with AC_FC_SRCEXT): New tests.
* tests/mktests.sh: No need to exclude AC_FC_FREEFORM, it uses
AC_LANG_PUSH/AC_LANG_POP.
* doc/autoconf.texi (Fortran Compiler): Document it.
* NEWS: Update.
Eric Blake [Tue, 2 Mar 2010 00:17:40 +0000 (17:17 -0700)]
Optimize AS_BOX.
* lib/m4sugar/m4sh.m4 (AS_BOX): Use less m4 time.
(_AS_BOX_LITERAL): Use fewer forks in the common case.
* doc/autoconf.texi (Common Shell Constructs) <AS_BOX>: Document
the macro.
* NEWS: Mention it.
Eric Blake [Sat, 27 Feb 2010 18:43:21 +0000 (11:43 -0700)]
Use new AS_LITERAL_IF argument when appropriate.
* lib/m4sugar/m4sh.m4 (AS_VAR_SET): Reduce m4 overhead.
(AS_VAR_IF, AS_VAR_TEST_SET): Provide shorter variant for simple
references.
Suggested by Bruno Haible.
Eric Blake [Tue, 16 Mar 2010 21:51:23 +0000 (15:51 -0600)]
Add AS_LITERAL_WORD_IF.
* lib/m4sugar/m4sh.m4 (_AS_LITERAL_IF): Also reject shell quoting
characters as non-literal, and provide way to reject space.
(AS_LITERAL_WORD_IF): New macro.
* doc/autoconf.texi (Polymorphic Variables) <AS_LITERAL_IF>:
Document new macro. Fix example to match reality.
* NEWS: Document change and new macro.
* tests/m4sh.at (AS@&t@_LITERAL_IF): Update test.
* doc/autoconf.texi (Limitations of Shell Builtins) <for>:
Document a bug of the 'for' builtin in Solaris /bin/sh, w.r.t.
tokens seeming variable assignment in the list of arguments.
* doc/autoconf.texi (Limitations of Shell Builtins) <for>:
Document a bug of the 'for' builtin in Solaris /bin/sh, w.r.t.
tokens seeming variable assignment in the list of arguments.
Ralf Wildenhues [Wed, 23 Jun 2010 17:23:12 +0000 (19:23 +0200)]
Improve VPATH handling in config.status for non-Automake projects.
* lib/autoconf/status.m4 (_AC_OUTPUT_FILES_PREPARE): Be sure not
to remove references to a subdir of srcdir. Fix treatment of
multiple colon-separated VPATH entries.
* tests/torture.at (VPATH): New test.
Report by Keith Marshall.
Ralf Wildenhues [Wed, 23 Jun 2010 17:55:02 +0000 (19:55 +0200)]
Further improve docs about nested double-quotes and backquotes.
* doc/autoconf.texi (Shellology): Remove anchor for pdksh.
Move quoting bug example to ...
(Shell Substitutions): ... here. Document which behavior is
specified by Posix.
Ralf Wildenhues [Wed, 23 Jun 2010 17:18:14 +0000 (19:18 +0200)]
Coverage for Fortran compiler macros.
* tests/fortran.at (AC_OPENMP and Fortran 77)
(AC_OPENMP and Fortran): Simplify, using AT_CHECK_CONFIGURE.
(AC_F77_DUMMY_MAIN usage, AC_FC_DUMMY_MAIN usage)
(AC_F77_MAIN usage, AC_FC_MAIN usage, AC_F77_FUNC usage)
(AC_FC_FUNC usage, AC_FC_SRCEXT usage, AC_FC_FREEFORM): New
tests.
* doc/autoconf.texi (Fortran Compiler): Use GNU coding style
on C code snippets. Add markers for tested examples.
Suggest AC_FC_FREEFORM for source file extensions which the
compiler might not natively support but which are accepted
with help from AC_FC_SRCEXT. Suggest AC_CONFIG_HEADERS for
setups using one of the AC_*MAIN macros.
Ralf Wildenhues [Sat, 19 Jun 2010 18:17:09 +0000 (20:17 +0200)]
Accept any nonzero exit status upon config.status write failure.
* tests/torture.at (AC_CONFIG_FILES, HEADERS, LINKS and COMMANDS):
Normalize nonzero status to 1 for writing to /dev/full, for HP-UX
11.31 cat which exits 2.
Ben Pfaff [Tue, 15 Jun 2010 04:10:48 +0000 (21:10 -0700)]
Document how to propogate variables to submakes.
On bug-gnulib, archived at
http://permalink.gmane.org/gmane.comp.lib.gnulib.bugs/22132
Ralf Wildenhues taught me a bit about how Automake propagates
variables to submakes. I thought that it would good to document
this in the Autoconf manual, which currently has no detail at
all.
* doc/autoconf.texi: Describe technique used by Automake to
propagate variables to submakes in more detail.
Ralf Wildenhues [Tue, 22 Jun 2010 21:50:03 +0000 (23:50 +0200)]
Formatting cleanups for optional arguments.
* doc/autoconf.texi (Configuration Actions, Help Formatting)
(External Software): Use @r{} for brackets denoting optional
arguments, where @ovar is not safe to use.
Ralf Wildenhues [Tue, 22 Jun 2010 18:05:38 +0000 (20:05 +0200)]
Clarify nested double-quotes and backquotes shell issues.
* doc/autoconf.texi (Shellology): New anchor for pdksh.
(Shell Substitutions): Link to it for escaped double-quotes
within double-quoted backquotes; add ksh example for unescaped
inner double-quotes problem.
Ralf Wildenhues [Tue, 22 Jun 2010 18:26:33 +0000 (20:26 +0200)]
Overhaul the manual, esp. the Autotest chapter.
* doc/autoconf.texi (Installation Directory Variables):
Replace some uses of @var with @code.
(Special Shell Variables): Fix misordered paragraph about IFS.
(Writing Testsuites): Include paragraph following AT_TESTED in
the macro definition.
(testsuite Invocation): Failed tests are not rerun.
(testsuite Scripts, Autotest Logs, testsuite Invocation)
(Making testsuite Scripts): Minor edits for consistency and
language.
Ralf Wildenhues [Thu, 17 Jun 2010 20:44:02 +0000 (22:44 +0200)]
Document, test, and fix AT_ARG_OPTION, AT_ARG_OPTION_ARG.
* lib/autotest/general.m4 (_AT_ARG_OPTION): Fix translation of
hyphens to underscores when turning option names to variables.
Avoid macro name concatenation garbage with trailing `dnl'.
(AT_ARG_OPTION, AT_ARG_OPTION_ARG): Overhaul macro description.
The OPTIONS are space-separated, not comma-separated. The
negative form of AT_ARG_OPTION is prefixed with `--no-'.
* tests/autotest.at (AT@&t@_ARG_OPTION, AT@&t@_ARG_OPTION_ARG):
New tests.
* NEWS: Update.
* doc/autoconf.texi (Writing Testsuites): Document AT_ARG_OPTION
and AT_ARG_OPTION_ARG.
(testsuite Invocation): Call the thingies passed to the
testsuite options, not arguments. Note that the testsuite
author may add further package-specific options.
Ralf Wildenhues [Thu, 17 Jun 2010 20:26:30 +0000 (22:26 +0200)]
Autotest: enable colored test results.
* lib/autotest/general.m4 (HELP_TUNING_BEGIN): New diversion.
(HELP_TUNING, HELP_OTHER, HELP_END): Bump diversion numbers.
(AT_INIT): Accept
--color and --color=never|auto|always. If desired, colorize
test results and testsuite summary on standard output.
[HELP_TUNING]: Divert content instead to ...
[HELP_TUNING_BEGIN]: ... this diversion, m4_wrapped until the
end, when we know whether AT_COLOR_TESTS has been specified.
(AT_COLOR_TESTS): New macro, set the default for color to auto.
* doc/autoconf.texi (Writing Testsuites): Document it.
(testsuite Invocation): Document --color* options.
* tests/local.at: Call AT_COLOR_TESTS for Autoconf's testsuite.
* tests/autotest.at (color test results): New test, mirroring
color.test from Automake.
* NEWS: Update.
Eric Blake [Tue, 8 Jun 2010 12:25:35 +0000 (06:25 -0600)]
Make CONFIG_SITE handling more robust.
* lib/autoconf/general.m4 (AC_SITE_LOAD): Avoid leading - and path
search, and check for failure to load.
* tests/base.at (AC_CACHE_CHECK): Enhance test.
* doc/autoconf.texi (Site Defaults): Mention that CONFIG_SITE
works best as an absolute path.
* NEWS: Document the semantic change.
Bruno Haible [Tue, 16 Mar 2010 06:04:40 +0000 (07:04 +0100)]
Allow plus signs in AC_ARG_ENABLE and AC_ARG_WITH.
* doc/autoconf.texi (External Software): Mention that AC_ARG_WITH
accepts packages with a + sign in it.
(Package Options): Likewise for AC_ARG_ENABLE.
* lib/autoconf/general.m4 (_AC_ENABLE_IF): Also replace '+' with '_'.
* tests/base.at (AC_ARG_ENABLE and AC_ARG_WITH): New test.
* NEWS: Update.
Ralf Wildenhues [Mon, 14 Jun 2010 18:31:58 +0000 (20:31 +0200)]
New Autotest testsuite option --recheck.
* lib/autotest/general.m4 (AT_INIT): New variable $at_recheck.
Escape hyphen in $at_dir early. Accept command line switch
--recheck. Set $at_suite_log early, based on --directory
switch; with --recheck, include the list of FAILed and XPASSed
tests from old testsuite.log file in $at_groups. Document
--recheck in --help output.
* tests/autotest.at (recheck): New test.
* doc/autoconf.texi (testsuite Invocation): Document --recheck.
* NEWS: Update.
Ralf Wildenhues [Tue, 8 Jun 2010 04:56:43 +0000 (06:56 +0200)]
Coverage and doc fixes for AC_LANG_SOURCE and AC_LANG_PROGRAM.
* tests/compile.at (AC_LANG_SOURCE, AC_LANG_SOURCE(C++))
(AC_LANG_SOURCE example, AC_LANG_PROGRAM example): New tests.
* doc/autoconf.texi (Generating Sources): Add markers for tested
examples; update quoting, and update AC_INIT usage to also set
optional URL arguments. Mention that the examples require gcc.
Prompted by report from Brian J. Murrell.
Ralf Wildenhues [Tue, 8 Jun 2010 04:55:10 +0000 (06:55 +0200)]
Make AS_SET_CATFILE polymorphic, and add testsuite coverage.
* lib/m4sugar/m4sh.m4 (AS_SET_CATFILE): Use AS_VAR_SET to set
the variable.
* tests/m4sh.at (AS@&t@_SET_CATFILE): New test.
* doc/autoconf.texi (Common Shell Constructs): Document that
AS_SET_CATFILE is polymorphic in its VAR argument now.
* NEWS: Update.
Ralf Wildenhues [Tue, 8 Jun 2010 04:49:55 +0000 (06:49 +0200)]
Testsuite coverage for AC_CACHE_VAL and caching semantics.
* tests/base.at (AC_CACHE_CHECK): Extend test.
(AC_CACHE_LOAD): New test.
* tests/torture.at (Configuring subdirectories): Also test
--config-cache with AC_CONFIG_SUBDIRS.
* doc/autoconf.texi (Caching Results): Annotate code snippets
which are tested in the test suite.
(Cache Files): Documented cache variables may be used on the
configure command line to override individual entries in the
cache file.
projects / thirdparty / autoconf.git / log
