Paul Eggert [Wed, 14 Sep 2016 01:28:19 +0000 (18:28 -0700)]
AC_USE_SYSTEM_EXTENSIONS: port to recent ISO C
* lib/autoconf/specific.m4 (AC_USE_SYSTEM_EXTENSIONS):
Also define __STDC_WANT_IEC_60559_BFP_EXT__,
__STDC_WANT_IEC_60559_FUNCS_EXT__, and __STDC_WANT_LIB_EXT2__.
* NEWS, doc/autoconf.texi (Posix Variants):
Document this. Also, document other changes in this area
that were not properly documented before.
Paul Eggert [Tue, 15 Mar 2016 17:51:26 +0000 (10:51 -0700)]
autom4te: fix problem when tracing to '-'
* bin/autom4te.in (handle_traces): When $output is '-', use
stdout rather than creating a file named '-'. This fixes a problem
introduced by the recent port to the new Autom4te::XFile API.
Paul Eggert [Tue, 15 Mar 2016 16:34:11 +0000 (09:34 -0700)]
Also try clang
Problem reported by Václav Zeman in:
http://lists.gnu.org/archive/html/autoconf/2012-10/msg00000.html
* lib/autoconf/c.m4 (AC_PROG_CC, AC_PROG_OBJC): Also try clang.
(AC_PROG_CXX): Also try clang++.
These are at the end of the existing lists, to avoid compatibility
issues in older installations.
Paul Eggert [Tue, 15 Mar 2016 15:56:43 +0000 (08:56 -0700)]
Port C11 and C++11 testing to clang
* lib/autoconf/c.m4 (_AC_C_C99_TEST_HEADER):
Include stddef.h, for offsetof.
(_AC_PROG_CC_C11): Limit _Static_assert to integer constant
expressions. Suggested by Nick Bowler in:
http://lists.gnu.org/archive/html/autoconf/2016-02/msg00009.html
(_AC_CXX_CXX11_TEST_BODY): Don't use string literals to initialize
non-const pointers. Suggested by Mike Miller in:
http://lists.gnu.org/archive/html/autoconf/2016-02/msg00008.html
Paul Eggert [Tue, 23 Feb 2016 07:07:02 +0000 (23:07 -0800)]
AC_C_RESTRICT: port better to non-GCC + glibc
Problem reported by Dwight Guth in:
http://lists.gnu.org/archive/html/bug-autoconf/2016-02/msg00006.html
* lib/autoconf/c.m4 (AC_C_RESTRICT): Prefer __restrict__ to __restrict.
Also, fix and update some comments.
Paul Eggert [Sat, 5 Sep 2015 14:55:52 +0000 (07:55 -0700)]
tests: port to recent libtool diagnostics
Problem reported by Christian Fafard in:
http://lists.gnu.org/archive/html/bug-autoconf/2015-09/msg00009.html
* tests/foreign.at (libtool): Run the scripts in the C locale,
so that we need not worry about localized quotes in their output.
Paul Eggert [Sat, 8 Aug 2015 01:09:17 +0000 (18:09 -0700)]
Add /opt/X11/include to X search path
* lib/autoconf/libs.m4 (_AC_PATH_X_DIRECT):
Add /opt/X11/include for OS X.
Problem reported by Daniel Macks at:
http://lists.gnu.org/archive/html/bug-autoconf/2015-08/msg00002.html
Noah Misch [Thu, 14 May 2015 01:11:47 +0000 (21:11 -0400)]
AC_CHECK_DECL, AC_CHECK_DECLS: port to the Clang compiler
* lib/autoconf/general.m4 (_AC_UNDECLARED_WARNING): New macro.
(_AC_CHECK_DECL_BODY): Call it once per language; treat warnings as
errors when its verdict indicates that.
* tests/semantics.at (AC_CHECK_DECLS): Add a macro call that relies on
the new semantics. Avoid -Wmissing-variable-declarations warnings.
* doc/autoconf.texi (Generic Declarations): Document the implications.
* NEWS: Mention this change.
Eric Blake [Wed, 15 Apr 2015 22:31:34 +0000 (16:31 -0600)]
lib: use shorter way to test if variable is set
Based on an idea by Bernhard Reutner-Fischer.
We frequently used the idiom of 'test "${var+set}" = set' to
test if $var was set to a non-empty string, but this can portably
be trimmed to a more compact 'test ${var+y}' for a smaller
configure file. Testing that a variable is not set can be done
with '${var+false} :' (although the value of $? is not reliably
1 when the variable is set).
The code for AS_VAR_TEST_SET already used the form '${var+:} false',
but it is slightly longer, and does not guarantee $? of 1.
Tested on coreutils, where the resulting configure file is about
1k smaller.
* doc/autoconf.texi (Shell Substitutions): Prefer shorter sequence
for testing if a variable is set.
(Limitations of Builtins) <test (strings)>: Document it.
* configure.ac: Use it.
* lib/autoconf/c.m4 (_AC_PROG_CC_G, _AC_PROG_CXX_G)
(_AC_PROG_OBJC_G, _AC_PROG_OBJCXX_G): Likewise.
* lib/autoconf/fortran.m4 (_AC_PROG_FC_G): Likewise.
* lib/autoconf/general.m4 (_AC_ENABLE_IF_ACTION, AC_CACHE_SAVE):
Likewise.
* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_DEFAULT): Likewise.
* lib/autoconf/programs.m4 (AC_PROG_INSTALL, AC_PROG_MKDIR_P)
(_AC_PROG_LEX_YYTEXT_DECL): Likewise.
* lib/autoconf/status.m4 (_AC_OUTPUT_MAIN_LOOP): Likewise.
* lib/autotest/general.m4 (AT_INIT): Likewise.
* tests/base.at (AC_CACHE_CHECK): Likewise.
* tests/m4sh.at (LINENO): Likewise.
* lib/m4sugar/m4sh.m4 (_AS_BOURNE_COMPATIBLE)
(_AS_DETECT_BETTER_SHELL, _AS_SHELL_SANITIZE)
(_AS_PATH_SEPARATOR_PREPARE): Likewise.
(AS_VAR_TEST_SET): Use shorter sequence.
Eric Blake [Tue, 21 Apr 2015 12:14:33 +0000 (06:14 -0600)]
m4_set_foreach: minor optimization
As a minor optimization, most macros in m4sugar.m4 try to avoid
output of 'dnl' in the expansion, to reduce the number of macros
that must be expanded at each call site.
* lib/m4sugar/m4sugar.m4 (m4_set_foreach): Don't expand dnl in all
callers.
Jim Meyering [Sun, 1 Feb 2015 19:41:27 +0000 (11:41 -0800)]
tests: avoid two false-positive parallel test failures
* tests/local.mk (check-local): Add a leading "+",
to void false-positive test failures when running
them in parallel. Before this change, running e.g.,
"make check TESTSUITEFLAGS=--jobs=15" would always
fail the two "make"-invoking tests: "C unit tests"
and "C unit tests (EXEEXT)".
(installcheck-local): Likewise for "installcheck".
Paul Eggert [Fri, 2 Jan 2015 21:02:48 +0000 (13:02 -0800)]
doc: -f is now portable for cp and ln
This follows up on a comment by Glenn Morris in:
http://lists.gnu.org/archive/html/emacs-devel/2015-01/msg00011.html
* doc/autoconf.texi (Limitations of Usual Tools):
Remove circa-1990 advice about avoiding cp -f and ln -f.
Although that advice was reasonable for the early 1990s, the -f
option is portable for both cp and ln nowadays. These options
were standardized in POSIX 1003.2-1992, and pre-POSIX systems such
as SunOS 4 are no longer of practical concern.
Fix spurious testsuite failure when /bin/sh is dash
The testsuite used slightly different logic in the code employed to
decide whether a test should be skipped due to a limitation of the
selected shell, and in the code running the test itself.
Paul Eggert [Mon, 8 Sep 2014 17:15:34 +0000 (10:15 -0700)]
doc: distinguish GCC from GNU C, etc.
* doc/autoconf.texi (C Compiler, Objective C Compiler)
(Objective C++ Compiler, Fortran Compiler): Be more careful about
distinguishing GNU C from GCC, and similarly for other languages.
Problem reported by Marko Lindqvist in:
http://lists.gnu.org/archive/html/autoconf/2014-09/msg00027.html
Paul Eggert [Mon, 8 Sep 2014 16:25:08 +0000 (09:25 -0700)]
autoconf: clarify "checking" message for GNU-compatible compiliers
Problem reported by Bastien Chevreux in:
http://lists.gnu.org/archive/html/autoconf/2014-09/msg00022.html
and idea for fix by Eric Blake in:
http://lists.gnu.org/archive/html/autoconf/2014-09/msg00025.html
* doc/autoconf.texi (Running the Preprocessor)
(Present But Cannot Be Compiled):
Adjust examples to match current behavior.
* lib/autoconf/lang.m4 (_AC_LANG_COMPILER_GNU): Say
"checking whether the compiler supports GNU C", not
"checking whether we are using the GNU C compiler".
Jehan [Wed, 2 Oct 2013 05:53:50 +0000 (18:53 +1300)]
cross-compiling: handling modern platforms able to run foreign binaries.
* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_CROSS):
When only --host is set, and no --build, but in the end, the resulting
computed $build and $host are different, set $cross_compiling = yes.
Indeed we can't rely only on a successful test program run, because false
positives occur on some platforms. In particular modern GNU/Linux
distributions set Wine to automatically handle Windows binaries.
Consequently $cross_compiling gets set to "no" even though we are in an
obvious cross-compilation case.
(tiny change)
Paul Eggert [Fri, 8 Aug 2014 00:16:40 +0000 (17:16 -0700)]
autoconf: modernize AC_C_VARARRAYS for C11
* lib/autoconf/c.m4 (AC_C_VARARRAYS): Define __STDC_NO_VLA__ if
VLAs are not supported, as this is what C11 does. The old macro
HAVE_C_VARARRAYS is still defined if they are supported, but is
now obsolescent. Also, check for VLA bug in GCC 3.4.3.
* doc/autoconf.texi (C Compiler), NEWS: Document the above.
Paul Eggert [Thu, 7 Aug 2014 22:03:38 +0000 (15:03 -0700)]
doc: modernize character encoding
* doc/autoconf.texi: Specify @documentencoding UTF-8. Don't abuse
'`' to mean open quote, unless Texinfo already interprets it that
way. Be more careful about hyphen versus minus versus endash
versus emdash.
He analyzed it to a root cause: his trailing newline, coupled
with an 'if $2; then' construct in the macro body, resulted in
configure containing:
if test ... xyes
; then
where the semicolon is a syntax error in shell; and proposed
a patch to automake to fix his use case.
While that macro is not under our control, it does highlight
the fact that the shell can use either ; or newline to
terminate a conditional prior to the next keyword in a compound
statement. If we use newline, we gain two benefits - the
configure file is slightly smaller (more lines, but fewer
bytes), and any user that doesn't realize that unquoted
trailing newlines in a macro argument are still significant
can still generate valid shell code when their argument is
used in a shell compound statement.
* lib/m4sugar/m4sh.m4 (AS_IF, _AS_IF, _AS_CLEAN_DIR): Prefer
newline over semicolon to end user-supplied conditionals.
* lib/autoconf/general.m4 (AC_CONFIG_AUX_DIRS): Likewise.
* lib/autoconf/libs.m4 (AC_SEARCH_LIBS): Likewise.
* lib/autoconf/programs.m4 (_AC_PATH_PROGS_FEATURE_CHECK):
Likewise.
* tests/m4sh.at (AS_IF and AS_CASE): Test it.
Eric Blake [Fri, 30 May 2014 14:55:10 +0000 (08:55 -0600)]
AC_INIT: quote invalid feature names
Changes:
configure: error: invalid feature name: debug
to
configure: error: invalid feature name: `debug '
to make it obvious if trailing space is the reason why a feature
name was rejected; similar to existing error messages elsewhere
about invalid shell variable names.
* lib/autoconf/general.m4 (_AC_INIT_PARSE_ENABLE2): Add quotes.
Reported by Noel Grandin.
Vincent Lefevre [Sun, 5 Jan 2014 03:50:02 +0000 (04:50 +0100)]
Change main () to main (void) for C/C++
This patch changes "main ()" to "main (void)" for C/C++.
See: http://lists.gnu.org/archive/html/bug-autoconf/2014-01/msg00005.html
On my machine, before this patch, 3 tests were failing:
38: tools.at:1329 autom4te cache locking
218: autotest.at:1893 C unit tests
ac_config_testdir at_tested autotest
219: autotest.at:1948 C unit tests (EXEEXT)
ac_config_testdir at_tested autotest
With this patch, 2 tests were failing:
218: autotest.at:1893 C unit tests
ac_config_testdir at_tested autotest
219: autotest.at:1948 C unit tests (EXEEXT)
ac_config_testdir at_tested autotest
(I suspect that 38 is unrelated.)
Signed-off-by: Vincent Lefevre <vincent@vinc17.net>
Copyright-paperwork-exempt: Yes
Eric Blake [Mon, 27 Jan 2014 18:33:07 +0000 (11:33 -0700)]
doc: give an example of using the macro for pkg-config
The autoconf manual doesn't mention any examples of actually
using m4_pattern_forbid. Yet this is the perfect macro for
avoiding the all-too-common failure mode of configure dying with:
checking if libxml2 is present... ./configure: line 11586: syntax
error
near unexpected token `LIBXML2,'
./configure: line 11586: `PKG_CHECK_MODULES(LIBXML2, libxml-2.0>=
2.6.19,'
for developers that forgot to install pkg-config. While we don't
necessarily advertise the use of PKG_CHECK_MODULES, it is a
common enough situation that the manual should make it easier to
help developers learn about missing third-party macros.
Based on a mailing list report by Daniel Pocock:
http://lists.gnu.org/archive/html/autoconf/2014-01/msg00030.html
Eric Blake [Wed, 1 Jan 2014 23:46:48 +0000 (16:46 -0700)]
tests: don't let config.site affect testsuite
Test 236 "configure directories" failed for me on 64-bit Fedora 20;
it boiled down to the system's config.site causing libdir to
default to /usr/lib64 instead of the autoconf default of /usr/lib.
* tests/base.at (configure directories): Neutralize any preinstalled
config.site from the system.
Eric Blake [Wed, 1 Jan 2014 23:32:04 +0000 (16:32 -0700)]
maint: fix 'make syntax-check' findings
Fix syntax check warnings that are unrelated to the new copyright
year.
* lib/local.mk (lib/autoscan/autoscan.list): Reduce indent, to
avoid mix of tab and 8 spaces.
* bin/local.mk (bin/autoconf.in): Likewise.
* lib/autoconf/c.m4 (_AC_CXX_CXX98_TEST_BODY): Use consistent case
in message.
Expose the checks done by AC_INCLUDES_DEFAULT as a public macro.
* lib/autoconf/headers.m4 (_AC_INCLUDES_DEFAULT_REQUIREMENTS):
Rename to AC_CHECK_INCLUDES_DEFAULT. All callers changed.
(AC_HEADER_STDC, AC_UNISTD_H): Use AC_CHECK_INCLUDES_DEFAULT instead
of previous kludge.
Use AC_CHECK_{DECLS,FUNCS,HEADERS}_ONCE more in specific-check macros.
* lib/autoconf/functions.m4 (AC_FUNC_CHOWN): No need to check for unistd.h.
(_AC_LIBOBJ_FNMATCH): Use AC_CHECK_DECLS_ONCE and AC_CHECK_FUNCS_ONCE.
(_AC_LIBOBJ_GETLOADAVG): Use AC_CHECK_FUNCS_ONCE for setlocale.
(AC_FUNC_MMAP): Use AC_CHECK_FUNCS_ONCE for getpagesize.
(AC_FUNC_SELECT_ARGTYPES): Use AC_CHECK_HEADERS_ONCE for sys/select.h and
sys/socket.h.
(AC_FUNC_STRERROR_R): Use AC_CHECK_DECLS_ONCE + AC_CHECK_FUNCS_ONCE for
strerror_r.
(AC_FUNC_UTIME_NULL): Use AC_CHECK_HEADERS_ONCE for utime.h.
(AC_FUNC_FORK): Use AC_CHECK_HEADERS_ONCE and AC_CHECK_FUNCS_ONCE.
(AC_FUNC_VPRINTF): Use AC_CHECK_FUNCS_ONCE for vprintf (but not _doprnt).
* lib/autoconf/headers.m4 (AC_HEADER_TIME, AC_MEMORY_H): Use
AC_CHECK_HEADERS_ONCE.
Use AC_CHECK_HEADERS_ONCE for the tests done by AC_INCLUDES_DEFAULT.
* lib/autoconf/headers.m4 (AC_CHECK_HEADERS_ONCE): Divide into a public
macro that AC_REQUIREs _AC_INCLUDES_DEFAULT_REQUIREMENTS, and ...
(_AC_CHECK_HEADERS_ONCE): ... a private macro, that doesn't.
(_AC_HEADERS_EXPANSION): Use $ac_includes_default, not
AC_INCLUDES_DEFAULT.
(_AC_INCLUDES_DEFAULT_REQUIREMENTS): Use AC_CHECK_HEADERS_ONCE.
* lib/autoconf/headers.m4 (_AC_INCLUDES_DEFAULT_REQUIREMENTS):
Include stddef.h, stdlib.h, and string.h unconditionally.
Don't include memory.h at all.
Don't use AC_HEADER_STDC.
Don't check for stddef.h, stdlib.h, string.h, or memory.h.
For compatibility, unconditionally define STDC_HEADERS,
HAVE_STDLIB_H, and HAVE_STRING_H.
(AN_HEADER list): Remove C89 headers, and memory.h from list.
(AC_HEADER_STDC, AC_UNISTD_H): AU_DEFUN to trigger
_AC_INCLUDES_DEFAULT_REQUIREMENTS if it hasn't already happened,
and do nothing else.
(AC_HEADER_TIME): AU_DEFUN, and define TIME_WITH_SYS_TIME unconditionally
as long as sys/time.h is present.
(AC_USG, AC_MEMORY_H): Assume existence of string.h.
* lib/autoconf/functions.m4 (_AC_FUNC_MALLOC_IF, _AC_FUNC_REALLOC_IF):
Don't use AC_HEADER_STDC. Assume stdlib.h exists.
(AC_FUNC_MKTIME): Don't use AC_HEADER_TIME. Assume time.h exists.
(AC_FUNC_ALLOCA): Assume stdlib.h exists.
(_AC_LIBOBJ_FNMATCH): Assume wchar.h and wctype.h exist.
(_AC_LIBOBJ_GETLOADAVG): Assume locale.h exists.
(AC_FUNC_MMAP): Assume stdlib.h exists.
* tests/tools.at: Use AC_WORDS_BIGENDIAN instead of AC_STDC_HEADERS in
autoupdate test.
AC_CHECK_HEADER/AC_CHECK_HEADERS: complete transition to compile tests.
* lib/autoconf/headers.m4 (AC_CHECK_HEADER): Use _AC_CHECK_HEADER_COMPILE
by default. Continue to use _AC_CHECK_HEADER_PREPROC if fourth arg is '-'.
(_AC_CHECK_HEADER_PREPROC): Issue a deprecation warning.
(_AC_CHECK_HEADER_MONGREL, _AC_CHECK_HEADER_MONGREL_BODY): Remove.
Eric Blake [Thu, 12 Sep 2013 21:11:29 +0000 (15:11 -0600)]
AC_INIT: add --runstatedir option to configure
http://lwn.net/Articles/436012/ documents that many distros
are now preferring to use /run rather than /var/run for
storage of pid files and other per-process temporary files
that must not be cleaned out during arbitrary TMPDIR sweeps.
As such, the GNU Coding Standards were recently changed to
recommend a new configure option to make it easy to choose
this directory at configure time. This patch adds support
for the option to all configure scripts built by autoconf.
* general.m4 (_AC_INIT_PARSE_ARGS): Add new directory option.
(_AC_INIT_HELP): Document it.
* doc/autoconf.texi (Installation Directory Variables): Document
new option.
(Site Defaults): Mention typical use within a distro.
* NEWS: Mention the addition.
Eric Blake [Thu, 5 Sep 2013 20:14:55 +0000 (14:14 -0600)]
doc: mention how to set early defaults
Jonathan Lebon reported an issue to me off-list about a regression
in libvirt's configure script, which I traced to a patch that
rearranged code that was checking $with_library compared to the
AC_ARG_WITH that actually set $with_library [1]. As the whole point
of the libvirt patch was to refactor code to make maintenance
easier by hiding the AC_ARG_WITH in a helper macro for a net
reduction in lines, it makes sense to actually document how to
check what value a variable has prior to the AC_ARG_WITH usage.
Alas, although the functionality for this has been present in
autoconf for ages, the documentation has been lacking.
Paul Eggert [Sun, 30 Jun 2013 00:49:27 +0000 (17:49 -0700)]
doc: don't push 'static inline'
* doc/autoconf.texi (Function Portability): Use plain 'static',
not 'static inline', in example. These days, 'static' is enough;
optimizing compilers can figure out the 'inline' on their own.
AC_PROG_CC: don't check whether $CC supports "-c -o" together
This reverts commit ce48964f. The extra code added by that commit was
planned to be used by future version of Automake, but the implementation
and future directions there have in the meantime be changed in a way
that makes the extra code in Autoconf superfluous. Just get rid of it.
build: remove last make recursion (for subdir 'man')
* Makefile.am (SUBDIRS): Remove (its last component 'man' has just
been removed).
(SUFFIXES): New, defined to empty, to be updated later by included
files.
($(srcdir)/man/local.mk): Include this.
* configure.ac (AC_CONFIG_FILES): Drop 'man/Makefile'.
* lib/freeze.mk (SUFFIXES): Extend with '+=' rather than defining
with '='.
* man/Makefile.am: Rename ...
* man/local.mk: ... like this, and adjust throughout.
* Makefile.am (SUBDIRS): Drop 'tests'. Adjust comments.
(DISTCLEANFILES, MAINTAINERCLEANFILES): Define to empty, to be
updated later.
(MAINTAINERCLEANFILES): Adjust later definition to use '+='
rather than '='.
($(srcdir)/tests/local.mk): Include this.
* configure.ac (AC_CONFIG_FILES): Drop 'tests/Makefile'.
* lib/freeze.mk ($(AUTOM4TE_CFG)): Drop now-redundant remake rule.
($(build_libdir)/m4sugar/version.m4): Likewise.
* tests/Makefile.am: Rename ...
* tests/local.mk: ... like this, and adjust (quite heavily).
* tests/mktests.sh: Adjust to generate output files and temporary
files in the tests subdirectory rather than in the current
directory.
build: fixup: don't define ETAGS_ARGS multiple times
* Makefile.am (ETAGS_ARGS): Define to empty, to be updated later.
* bin/local.mk (ETAGS_ARGS): Append to it, rather than re-defining it.
* lib/local.mk (ETAGS_ARGS): Likewise. Also, do not bother appending
"--lang=perl" once again, as that is already done in 'bin/local.mk'.
* Makefile.am (SUBDIRS): Drop 'lib'.
(edit): New, shared among the recipes in 'lib/local.mk' and
'bin/local.mk'.
(CLEANFILES): New, will be updated later in included files.
($(srcdir)/lib/local.mk): Include it.
($(srcdir)/lib/freeze.mk): Likewise.
* lib/Makefile.am: Rename ...
* lib/local.mk: .. like this, with several adjustments. In
particular ...
(edit): Drop this definition, subsumed by the one in the
top-level Makefile.am.
* bin/local.mk (edit): Drop definition, that is already present
in the top-level Makefile.am now.
($(srcdir)/lib/freeze.mk): Drop inclusion; that is already done
in the top-level Makefile.am now.
* doc/local.mk (CLEANFILES): Adjust: append to it, do not define
it.
* lib/freeze.mk ($(AUTOM4TE_CFG)): Adjust recipe.
* configure.ac (AC_CONFIG_FILES): Drop 'lib/Makefile'.
Rather than reading it dynamically from the ChangeLog -- that,
remember, is only a dummy in a Git checkout! To avoid risking
the definition to get out-of-sync, let's enhance the maintainer
target 'update-copyright' to update it automatically (the same
way it's done in the Automake build system).
* configure.ac (RELEASE_YEAR): New AC_SUBST'd variable.
* cfg.mk (update-release-year): New maintainer-specific target
to automatically update the value of that variable.
(update-copyright): Depend on the new target.
* bin/local.mk (RELEASE_YEAR): Drop definition.
(edit): Simplify quoting of $(RELEASE_YEAR).
* lib/Makefile.am (RELEASE_YEAR): Drop definition.
(m4sugar/version.m4): Simplify quoting of $(RELEASE_YEAR).
build: no more recursion for 'lib/Autom4te' subdir
* lib/Autom4te/Makefile.am: Delete, its contents merged ...
* lib/Makefile.am: ... in here, with proper adjustments.
(SUBDIRS): Delete (last component 'Autom4te' has been dropped).
* configure.ac (AC_CONFIG_FILES): Drop 'lib/Autom4te/Makefile'.
build: no more recursion for' lib/autoconf' subdir
* lib/autoconf/Makefile.am: Delete, its contents merged ...
* lib/Makefile.am: ... in here, with proper adjustments.
(SUBDIRS): Drop 'autoconf'.
* configure.ac (AC_CONFIG_FILES): Drop 'lib/autoconf/Makefile'.
* lib/m4sugar/Makefile.am: Delete, its contents merged ...
* lib/Makefile.am: ... in here, with proper adjustments.
(SUBDIRS): Drop 'lib/m4sugar'.
Other related adjustments and re-organizations.
* configure.ac (AC_CONFIG_FILES): Drop 'lib/m4sugar/Makefile'.
* lib/freeze.mk ($(build_libdir)/m4sugar/version.m4): Adjust
recipe.
build: no more recursion for 'lib/autotest' subdir
* lib/autotest/Makefile.am: Delete, its contents merged ...
* lib/Makefile.am: ... in here, with proper adjustments.
(SUBDIRS): Drop 'autotest'.
Other minor related modifications.
* configure.ac (AC_CONFIG_FILES): Drop 'lib/autotest/Makefile'.
* lib/freeze.mk (MY_AUTOM4TE): Small required adjustments.
build: no more recursion for 'lib/autoscan' subdir
* lib/autoscan/Makefile.am: Delete, its contents merged ...
* lib/Makefile.am: ... in here, with proper adjustments.
(SUBDIRS): Drop 'autoscan'.
* configure.ac (AC_CONFIG_FILES): Drop 'lib/autoscan/Makefile'.
* lib/emacs/Makefile.am: Delete, its contents merged ...
* lib/Makefile.am: ... in here, with proper adjustments.
(SUBDIRS): Drop 'emacs'.
* configure.ac (AC_CONFIG_FILES): Drop 'lib/emacs/Makefile'.
* Makefile.am (MOSTLYCLEANFILES): New, to be extended later by
included files.
($(srcdir)/doc/local.mk): New include.
(SUBDIRS): Drop 'bin'. Adjust comments.
* bin/Makefile.am: Rename ...
* bin/local.mk: ... like this, and adjust.
* configure.ac (AC_CONFIG_FILES): Drop 'bin/Makefile'.
* .gitignore: Adjust.
* Makefile.am ($(srcdir)/doc/local.mk): New include.
(SUBDIRS): Drop 'doc'.
(AM_MAKEINFOFLAGS): Rename ...
(custom_MAKEINFOFLAGS): ... like this, to avoid conflicting with
the AM_MAKEINFOFLAGS defined in the included 'doc/local.mk'
($(srcdir)/INSTALL): Adjust recipe.
* doc/Makefile.am: Rename ...
* doc/local.mk: ... like this, and adjust.
* configure.ac (AC_CONFIG_FILES): Drop 'doc/Makefile'.
* build-aux/config.guess: This.
* build-aux/config.sub: And this.
* build-aux/gendocs.sh: And this.
* build-aux/gnupload: And this.
* build-aux/texinfo.tex: And this.
* doc/standards.texi: And this.
Paul Eggert [Wed, 24 Apr 2013 04:42:41 +0000 (21:42 -0700)]
doc: add missing semicolons to make rules
Problem reported by Peter Eisentraut in
<http://lists.gnu.org/archive/html/bug-autoconf/2013-04/msg00007.html>.
* doc/autoconf.texi (Automatic Remaking): Append semicolons
to rules that need empty commands.
Paul Eggert [Tue, 19 Mar 2013 18:22:16 +0000 (11:22 -0700)]
AC_PROG_CC etc: avoid warnings when removing conftest* on OS X
I forgot one of the fixes Mr. Nakada reported for the 2013-03-08 fix.
* lib/autoconf/general.m4 (AC_EGREP_CPP):
Use rm -rf, not just rm -f, when removing conftest*.
Akim Demaille [Tue, 19 Mar 2013 18:19:17 +0000 (11:19 -0700)]
AC_PROG_YACC: don't force Bison to warn against its own features
When invoked with -y/--yacc, Bison warns when its extensions over
POSIX Yacc are used. Yet many packages requiring GNU Bison use
Autoconf/Automake's Yacc support, which passes -y to Bison. It
turns out that passing '-o y.tab.c' has exactly the desired
effect: generating not only y.tab.c but also y.tab.h with -d and
y.output with -v. See:
http://lists.gnu.org/archive/html/bison-patches/2013-02/msg00100.html
* lib/autoconf/programs.m4 (AC_PROG_YACC): Use bison -o y.tab.c.
* NEWS, doc/autoconf.texi: Document this change.
Paul Eggert [Sat, 23 Feb 2013 19:14:49 +0000 (11:14 -0800)]
AC_FUNC_GETLOADAVG: doc fix
* doc/autoconf.texi (Particular Functions):
Omit incorrect mention of @var{dir} before getloadavg.c.
Problem reported by Patricke Welche in:
http://lists.gnu.org/archive/html/autoconf-patches/2013-02/msg00006.html
Paul Eggert [Thu, 14 Feb 2013 07:28:21 +0000 (23:28 -0800)]
AC_FUNC_SETPGRP: work even when cross-compiling
* lib/autoconf/functions.m4 (AC_FUNC_SETPGRP):
Use AC_COMPILE_IFELSE rather than AC_RUN_IFELSE.
Problem reported by Alvaro Soliverez in
<http://lists.gnu.org/archive/html/bug-autoconf/2013-02/msg00002.html>.
Paul Eggert [Fri, 8 Feb 2013 21:01:15 +0000 (13:01 -0800)]
AC_USE_SYSTEM_EXTENSIONS: improve port to HP-UX
* lib/autoconf/specific.m4 (AC_USE_SYSTEM_EXTENSIONS):
On hosts that need _XOPEN_SOURCE, define it when configuring, too,
so that it's compatible with the value used when compiling.
Paul Eggert [Thu, 7 Feb 2013 06:46:49 +0000 (22:46 -0800)]
AC_USE_SYSTEM_EXTENSIONS: port to HP-UX, MINUX 3, OS X.
* NEWS: Mention this.
* lib/autoconf/specific.m4 (AC_USE_SYSTEM_EXTENSIONS):
Define _NETBSD_HOST on MINUX, for MINUX 3.
Define _DARWIN_C_SOURCE, for OS X.
On HP-UX, define _XOPEN_SOURCE.
Paul Eggert [Tue, 29 Jan 2013 21:46:48 +0000 (13:46 -0800)]
autoscan: port to perl 5.17
* bin/autoscan.in (scan_sh_file): Escape '{'. This avoids a
feature that is deprecated in Perl 5.17. Reported by Ray Lauff in
<http://lists.gnu.org/archive/html/bug-autoconf/2013-01/msg00059.html>.
Gary V. Vaughan [Tue, 29 Jan 2013 12:17:04 +0000 (19:17 +0700)]
m4sugar: fix AS_VAR_GET regression.
AS_VAR_GET expands AS_ECHO inside en evaled single quoted string,
which causes the single quotes in "printf '%s\n'" to expose the
%s\n to the shell which expands "\n" to simply "n" before passing
it to printf.
* lib/m4sugar/m4sh.m4 (AS_ECHO): Use double quotes around the
format string.
* doc/autoconf.texi (Limitations of Shell Builtins): Show double
quotes to match AS_ECHO expansion.
* NEWS: Likewise.
Gary V. Vaughan [Mon, 28 Jan 2013 03:44:45 +0000 (10:44 +0700)]
m4sugar: factor away _AS_ECHO_PREPARE.
"printf '%s\n' ..." has been a fine replacement for plain "echo"
for at least 5 years (probably more like 10), even with most
museum-piece shells.
* lib/m4sugar/m4sh.m4 (_AS_ECHO_PREPARE): Remove.
(_AS_SHELL_SANITIZE): Keep as_nl setting originally from
_AS_ECHO_PREPARE here where it more properly belongs.
(AS_ECHO, AS_ECHO_N): Use printf unconditionally.
* doc/autoconf.texi (Limitations of Shell Builtins): Document
preference for 'printf' over working around 'echo' bugs.
* NEWS: Updated.
Reported by Jim Meyering.
Roger Leigh [Sun, 20 Jan 2013 18:50:49 +0000 (18:50 +0000)]
AC_PROG_CXX: Add checks for C++11, C++98TR1 and C++98
These checks are the C++ equivalent of the existing C
standards checks.
* doc/autoconf.texi (C++ Compiler): Document new behavior.
* lib/autoconf/c.m4 (AC_PROG_CXX): Try for C++11,
falling back to C++98.
(_AC_CXX_STD_TRY, _AC_CXX_CXX98_TEST_HEADER, _AC_CXX_CXX98_TEST_BODY)
(_AC_CXX_CXX11_TEST_HEADER, _AC_CXX_CXX11_TEST_BODY)
(_AC_PROG_CXX_CXX98, _AC_PROG_CXX_CXX11):
New macros.
projects / thirdparty / autoconf.git / log
