Eric Blake [Fri, 10 Apr 2009 20:43:33 +0000 (14:43 -0600)]
Improve documentation related to expanded-before-required.
* doc/autoconf.texi (Expanded Before Required): Add a case study.
(Running the Compiler) <AC_COMPILE_IFELSE>: Remind users that
running a compile test will AC_REQUIRE the compiler check.
(Macro Definitions) <AC_DEFUN>: Contrast AC_DEFUN and m4_define.
(C Compiler) <AC_PROG_CC>: Mention the fact that only first
invocation of this macro checks for $EXEEXT, and that many other
macros use it via AC_REQUIRE.
Reported by Andreas Schwab.
Eric Blake [Fri, 10 Apr 2009 16:56:40 +0000 (10:56 -0600)]
Mention latest rules about make and set -e.
* doc/autoconf.texi (Failure in Make Rules): Posix is now clear
that make must use set -e.
(Limitations of Builtins) <set>: Clarify more about set -e
behavior.
Eric Blake [Fri, 10 Apr 2009 03:45:18 +0000 (21:45 -0600)]
Make AS_IF, AS_CASE, and AS_FOR more robust to blank arguments.
* lib/m4sugar/m4sh.m4 (_AS_CASE, _AS_CASE_DEFAULT, AS_FOR, _AS_IF)
(_AS_IF_ELSE, AS_IF): Avoid syntax error on blank argument,
including a macro with an empty expansion.
* NEWS: Mention this.
* tests/m4sh.at (AS@&t@_IF and AS@&t@_CASE, AS@&t@_FOR): Update
tests.
Reported by Mike Frysinger.
Document awk and config.status line length limitations.
* doc/autoconf.texi (Configuration Actions): The input to
config.status should have reasonable line length.
(Limitations of Usual Tools): Document IRIX, HP-UX awk input
line length limit.
Report by Bruno Haible.
Skip `Multiple languages' test if CC is a C++ compiler.
* tests/compile.at (Multiple languages): Before starting the
test proper, build and run a configure script that tests the
C compiler only, and skips the test if this is found to be a
C++ compiler.
Report by Eric Blake.
Eric Blake [Fri, 10 Apr 2009 12:26:33 +0000 (06:26 -0600)]
Add undocumented _AS_CLEAN_DIR.
* lib/m4sugar/m4sh.m4 (_AS_CLEAN_DIR): New macro; fixes m4 quoting
in previous patch.
* lib/autotest/general.m4 (AT_INIT) <at_fn_group_prepare>: Use new
macro.
* tests/m4sh.at (_AS@&t@_CLEAN_DIR): New test.
Reported by Ralf Wildenhues.
Eric Blake [Thu, 9 Apr 2009 16:29:33 +0000 (10:29 -0600)]
Fix regression in empty test.
* lib/autotest/general.m4 (AT_SETUP): Prep AT_ingroup for fallback
use in empty test. Fixes regression introduced 2009-04-06.
(_AT_CHECK): Undo fallback when a test is not empty.
(AT_CLEANUP): Expand AT_ingroup before deleting.
Eric Blake [Mon, 6 Apr 2009 18:13:02 +0000 (12:13 -0600)]
Handle shell comments in AT_CHECK.
* lib/autotest/general.m4 (_AT_DECIDE_TRACEABLE): Handle # in
test correctly. Latent bug in handling shell comment was first
fixed 2008-11-20, but regressed two patches later.
* tests/autotest.at (Shell comment in command): New test.
* NEWS: Document the fix.
Eric Blake [Mon, 6 Apr 2009 16:40:49 +0000 (10:40 -0600)]
Hard fail any test with syntax errors.
* lib/autotest/general.m4 (AT_INIT) <at_fn_group_postprocess>:
Guarantee test failure on syntax error, rather than inheriting
status from previous test.
* tests/autotest.at (Syntax error): New test.
Eric Blake [Mon, 30 Mar 2009 14:45:11 +0000 (08:45 -0600)]
Beta Release Version 2.63b.
* NEWS: Mention the release.
* README: Clarify that this is a beta release.
* build-aux/texinfo.tex: Synchronize from upstream.
* .x-sc_trailing_blank: Exempt more upstream files.
Eric Blake [Mon, 30 Mar 2009 14:11:09 +0000 (08:11 -0600)]
For now, skip parallel tests under less-tested shells.
* tests/autotest.at (AT_CHECK_AT): Add pre-test argument.
(Tested programs, Startup error messages, AT_CHECK_AT_TITLE)
(Fallacy, Skip, errexit, Long test source lines)
(Debugging a successful test, Debugging script and environment)
(Debugging a failed test, Using atlocal)
(Choosing where testsuite is run): Adjust callers.
(AT_SKIP_PARALLEL_TESTS): New macro, to skip parallel tests except
under zsh, bash, or when TEST_PARALLEL_AUTOTEST is defined. Makes
it easier to avoid testsuite hangs for users with dash or other
less-tested shell.
(parallel test execution, parallel truth, parallel fallacy)
(parallel skip, parallel errexit)
(parallel autotest and signal handling): Use it.
* BUGS: Mention this.
* lib/autoconf/status.m4 (_AC_OUTPUT_FILES_PREPARE): Fall back to
bash carriage returns if ac_cr lost \r from ``.
* THANKS: Update.
Suggested by Eric Blake.
Eric Blake [Thu, 19 Feb 2009 21:32:36 +0000 (14:32 -0700)]
Use m4_translit more efficiently in AS_ESCAPE.
* lib/m4sugar/m4sh.m4 (_AS_ESCAPE): Alter API to take first byte
of set separately from rest.
(AS_ESCAPE, _AS_QUOTE_MODERN, AS_TR_SH, AS_VAR_GET): Adjust
callers.
* lib/autoconf/autoheader.m4 (AH_VERBATIM): Avoid duplicate
characters in translit request.
* doc/autoconf.texi (Common Shell Constructs) <AS_ESCAPE>:
Document the macro.
* NEWS: Likewise.
* lib/m4sugar/m4sugar.m4 (_m4_stack_reverse): Alter API to avoid
creating larger argument on each iteration.
(m4_stack_foreach_sep, m4_stack_foreach_sep_lifo)
(_m4_set_contents_2): Adjust all four-argument callers.
Eric Blake [Tue, 3 Feb 2009 16:15:54 +0000 (09:15 -0700)]
Mention that packagers should not pre-set CFLAGS.
* doc/autoconf.texi (Preset Output Variables) <CFLAGS>: Copy
advice given by automake on handling variables reserved by GNU
Coding Standards.
Reported by Karl Berry.
Eric Blake [Tue, 3 Feb 2009 16:01:52 +0000 (09:01 -0700)]
Document lib64 in config.site.
* doc/autoconf.texi (Site Defaults): Fix typo in FHS sample file.
Mention use of lib64.
* THANKS: Update.
Reported by Tom Browder, with help from Peter Breitenlohner.
Eric Blake [Wed, 28 Jan 2009 16:11:28 +0000 (09:11 -0700)]
Use AC_DEFUN_ONCE for uncontroversial one-shot macros.
* lib/autoconf/headers.m4 (AC_HEADER_ASSERT): Switch to
AC_DEFUN_ONCE, since this is a one-shot macro.
* lib/autoconf/specific.m4 (AC_USE_SYSTEM_EXTENSIONS): Likewise.
* lib/autoconf/general.m4 (AC_CANONICAL_BUILD)
(AC_CANONICAL_HOST, AC_CANONICAL_TARGET): Likewise.
Eric Blake [Wed, 28 Jan 2009 23:14:13 +0000 (16:14 -0700)]
Reduce blank lines in AC_DEFUN_ONCE macros.
* lib/m4sugar/m4sugar.m4 (m4_defun_once): Avoid redundant blank
line when a defun_once macro is required.
(_m4_defun_once): New helper macro, for less memory use.
* tests/m4sugar.at (m4@&t@_require: nested): Adjust test.
Eric Blake [Wed, 28 Jan 2009 18:01:42 +0000 (11:01 -0700)]
Silence another false positive expand-before-require.
* lib/m4sugar/m4sugar.m4 (_m4_defun_pro_outer)
(_m4_defun_epi_outer, _m4_require_call, m4_provide): Track name
that caused a diversion change, not just diversion number.
(m4_require): Factor...
(_m4_require_check): ...into new macro, which also checks whether
diversion that performed the expansion has been collected.
* tests/m4sugar.at (m4@&t@_require: nested): Enhance test.
Reported by Ralf Wildenhues.
Eric Blake [Wed, 28 Jan 2009 16:57:08 +0000 (09:57 -0700)]
Fix AC_C_RESTRICT for Sun Studio 12 C++.
* lib/autoconf/c.m4 (AC_C_RESTRICT): Newer Sun Studio C provides
__restrict__ rather than _Restrict, which still trips up Sun
Studio 12 C++.
* THANKS: Update.
Reported by Rolf Vandevaart.
Eric Blake [Tue, 27 Jan 2009 23:13:55 +0000 (16:13 -0700)]
Fix years in copyright notices.
* lib/m4sugar/m4sugar.m4 (m4_copyright_condense): New macro,
undocumented for now.
* lib/m4sugar/Makefile.am (version.m4): Add m4_PACKAGE_YEAR,
m4_PACKAGE_URL.
(RELEASE_YEAR): New macro, copied from bin/Makefile.am.
* lib/autoconf/general.m4 (_AC_COPYRIGHT_YEARS): New macro.
(AC_COPYRIGHT): Add undocumented third parameter.
(_AC_INIT_COPYRIGHT): Avoid need to bump copyright years.
* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Likewise.
* lib/autotest/general.m4 (AT_INIT): Likewise.
* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): Likewise.
(AT_COPYRIGHT): Add undocumented third parameter.
* tests/local.at (AT_COPYRIGHT): Don't add an extra copyright
parameter; the generic copyright given by autotest is sufficient
since we are the package that owns autotest.
Eric Blake [Tue, 27 Jan 2009 23:13:41 +0000 (16:13 -0700)]
Use URLs in --help output, part 3: testsuite.
* doc/autoconf.texi (Writing Testsuites): Mention autotest
namespace.
(Writing Testsuites) <AT_INIT>: Mention mandatory macros.
(Making testsuite Scripts): Document AT_PACKAGE_URL.
* tests/Makefile.am (package.m4): Follow our own advice.
* lib/autotest/general.m4 (AT_INIT): Give the user a hint about
package.m4. Enhance --help output.
(_AT_COPYRIGHT_YEARS): New macro, to make copyright bump easier.
Eric Blake [Mon, 26 Jan 2009 16:55:57 +0000 (09:55 -0700)]
Improve AC_DEFUN_ONCE semantics.
* lib/m4sugar/m4sugar.m4 (m4_defun_once): Rewrite to be no-op,
rather than warning, on second use, and make sure first use never
occurs out of order.
* tests/m4sugar.at (m4@&t@_require: one-shot initialization):
Enhance test.
* tests/base.at (AC_REQUIRE & AC_DEFUN_ONCE: [Require, expand],
(AC_REQUIRE & AC_DEFUN_ONCE: [Expand, require]): Adjust tests.
* NEWS: Document this.
* doc/autoconf.texi (Macro Definitions) <AC_DEFUN>: Mention
AC_DEFUN_ONCE.
(Prerequisite Macros) <AC_REQUIRE>: Likewise.
(Expanded Before Required): Likewise.
(One-Shot Macros) <AC_DEFUN_ONCE>: Document new semantics.
Reported by Bruno Haible, with suggestion by Paolo Bonzini.
Eric Blake [Sat, 24 Jan 2009 13:16:48 +0000 (06:16 -0700)]
Revert change to AC_DIR_HEADER.
* lib/autoconf/headers.m4 (AC_DIR_HEADER): Explicitly expanding
AC_HEADER_DIRENT no longer triggers a warning, and helps the user
who decides they don't need the obsolete AC_FUNC_CLOSEDIR_VOID.
Reported by Paolo Bonzini.
Eric Blake [Thu, 22 Jan 2009 15:08:06 +0000 (08:08 -0700)]
Silence a false positive expand-before-require case.
* lib/m4sugar/m4sugar.m4 (m4_provide): Track the diversion in
which a macro was provided.
(m4_require): Compare diversion numbers, rather than m4_require
nesting, when determining direct requires.
* tests/m4sugar.at (m4@&t@_require: nested): Test it.
Reported by Ralf Wildenhues, affecting Libtool.
Eric Blake [Tue, 20 Jan 2009 21:03:59 +0000 (14:03 -0700)]
Warn if macro is provided before indirectly required.
* lib/m4sugar/m4sugar.m4 (m4_provide): Track the set of all macros
provided since last outermost defun.
(_m4_defun_pro_outer): Empty the set.
(_m4_require_call): Distinguish between direct and indirect
requires, and remove required macros from the set.
(m4_require): Check the set, in order to warn.
* tests/m4sugar.at (m4@&t@_require: nested): Remove xfail, and add
test case for direct requires.
Eric Blake [Sat, 17 Jan 2009 16:36:02 +0000 (09:36 -0700)]
Improve AC_REQUIRE documentation.
* doc/autoconf.texi (Macro Definitions) <AC_DEFUN>: Add @defmac,
and mention interaction with AC_REQUIRE.
(Prerequisite Macros) <AC_REQUIRE>: Give more detail on user
ordering constraint bug, and how to fix it.
* tests/m4sugar.at (m4@&t@_require: nested): New test.
Eric Blake [Sat, 17 Jan 2009 15:38:11 +0000 (08:38 -0700)]
Speed up m4_require.
* lib/m4sugar/m4sugar.m4 (_m4_divert_dump): Change semantics to
always be defined, as either empty or a number.
(_m4_defun_pro_outer, _m4_defun_epi_outer): Treat _m4_divert_dump
as a stack, rather than a one-shot macro.
(_m4_require_call): Expect third argument to be pre-expanded.
(m4_divert_require, m4_require): Adjust clients accordingly.
* lib/m4sugar/m4sh.m4 (AS_REQUIRE): Likewise.
Eric Blake [Tue, 30 Dec 2008 15:32:08 +0000 (08:32 -0700)]
Make it easier to track diversion bugs.
* lib/m4sugar/m4sugar.m4 (_m4_divert_raw, _m4_undivert): New
internal macros, which are easier to trace than m4_builtin.
(m4_cleardivert, m4_divert, m4_divert_push, m4_divert_pop)
(m4_undivert): Use them.
(_m4_require_call): Likewise. Use fewer macros.
* lib/autotest/general.m4 (_AT_DECIDE_TRACEABLE): Fix typo.
Jim Meyering [Wed, 10 Dec 2008 13:45:35 +0000 (14:45 +0100)]
AC_HEADER_ASSERT: don't say assertions are disabled when they're not
* lib/autoconf/headers.m4 (AC_HEADER_ASSERT): Do not make configure
report "checking whether to enable assertions... no", when they are
in fact enabled. This is solely a bug in the output of configure.
In spite of saying "no", NDEBUG was not defined in that case.
Also, as noted by Eric Blake, leave assertions enabled upon
--enable-assert=INVALID.
William Pursell [Mon, 8 Dec 2008 21:16:38 +0000 (14:16 -0700)]
Fix AC_HEADER_ASSERT w.r.t. --enable-assert.
* lib/autoconf/headers.m4 (AC_HEADER_ASSERT): Honor --enable-assert,
rather than treating it as a synonym for --disable-assert.
* NEWS: Document the fix.
Eric Blake [Tue, 2 Dec 2008 18:51:44 +0000 (11:51 -0700)]
Improve AC_STATE_SAVE.
* tests/local.at (AC_STATE_SAVE): Avoid ls -1, and use one less
process by hoisting the uniqueness check into sed.
* doc/autoconf.texi (Limitations of Usual Tools) <ls>: Mention
MacOS bug.
Ralf Wildenhues [Thu, 27 Nov 2008 19:02:34 +0000 (20:02 +0100)]
Fix a couple of test failures with dash.
* tests/autotest.at (AT_CHECK_AT_TITLE_CHAR): Normalize
exit status of `cd'.
* tests/m4sh.at (AS_MESSAGE_LOG_FD): Remove script before
regeneration, to avoid timing effects.
Eric Blake [Tue, 25 Nov 2008 16:28:43 +0000 (09:28 -0700)]
Add m4_cleardivert.
* lib/m4sugar/m4sugar.m4 (m4_cleardivert): New macro.
* lib/autotest/general.m4 (AT_INIT): Use it.
* lib/autoconf/general.m4 (_AC_INIT_NOTICE): Likewise.
* tests/m4sugar.at (m4@&t@_divert_stack): Test it.
* doc/autoconf.texi (Diversion support) <m4_cleardivert>: Document
it.
* NEWS: Likewise.
Suggested by Paolo Bonzini.
Eric Blake [Mon, 24 Nov 2008 20:52:01 +0000 (13:52 -0700)]
Add safety check for m4_expand vs. diversions.
* lib/m4sugar/m4sugar.m4 (m4_expand): Make more robust against
diverted text.
* doc/autoconf.texi (Evaluation Macros) <m4_expand>: Document new
safety check.
Ralf Wildenhues [Sun, 23 Nov 2008 19:00:39 +0000 (20:00 +0100)]
More reliable signal handling in Autotest.
* lib/autotest/general.m4 (Driver loop): Rewrite signal handler.
Start parallel jobs in their own process group, enabling job
control in the shell if possible, for better signal handling.
Deal with INT, TERM, and HUP in the testsuite driver. In the
parallel driver, propagate TSTP to jobs either as TSTP or as
STOP (to avoid fork bombs with ksh).
Inside the job processes, add PIPE handler to write back the
job token, so the master process does not hang.
Disable the parallel driver if job control is not provided or if
trap does not understand signal names.
* tests/autotest.at (parallel autotest and signals): New test,
exercises INT, TERM, and PIPE, serial and parallel, with and
without `make' in the loop.
Kudos to Richard Stevens for writing APUE.
Eric Blake [Fri, 21 Nov 2008 17:15:20 +0000 (10:15 -0700)]
Use shell function for AS_ERROR.
* lib/m4sugar/m4sh.m4 (_AS_ERROR_PREPARE): New macro, defining a
new shell function.
(AS_ERROR): Use it.
(_AS_LINENO_PREPARE): Break circular dependency.
(AS_PREPARE, _AS_PREPARE): Initialize for child scripts.
Eric Blake [Fri, 21 Nov 2008 19:28:36 +0000 (12:28 -0700)]
Fix typos in recent testsuite improvements.
* lib/autotest/general.m4 (AT_INIT) <at_fn_check_prepare_dynamic>:
Fix typo.
* NEWS: Clarify the potential impact to users.
* tests/autotest.at (AT_DATA_AUTOTEST): New macro, patterned after
AT_DATA_M4SUGAR.
(AT_CHECK_AT_PREP, AT_CHECK_AT_TITLE): Use it.
(unusual file names): Test that the recent echo fix does not
regress. Fix quoting bug that made the test a no-op.
Reported by Paolo Bonzini and Ralf Wildenhues.
Eric Blake [Fri, 21 Nov 2008 15:12:12 +0000 (08:12 -0700)]
Change the semantics of AS_EXIT without argument.
* lib/m4sugar/m4sh.m4 (_AS_EXIT_PREPARE): When defaulting, use $?
even if it is 0.
(AS_ERROR): Guarantee non-zero status.
* bin/autoconf.as (exit_missing_arg, getopt): Revert prior change;
we want non-zero status.
* tests/m4sh.at (AS@&t@_EXIT): Update test accordingly.
* doc/autoconf.texi (Common Shell Constructs) <AS_EXIT>: Update
the documentation.
<AS_SET_STATUS>: Don't overly restrict implementation.
(Printing Messages) <AC_MSG_ERROR>: Describe better default.
Suggestions by Paolo Bonzini and Ralf Wildenhues.
Eric Blake [Fri, 21 Nov 2008 13:54:51 +0000 (06:54 -0700)]
Add @anchors within Builtins and Usual Tools lists.
* doc/autoconf.texi (Limitations of Builtins)
(Limitatations of Usual Tools): Add anchors for tools called out
by name. Adjust callers to narrow in on tool of interest.
projects / thirdparty / autoconf.git / log
