c5245aadbb
MFV r282150 libgomp: Update to version 4.3.5. bring initial BSD support from upstream. This was not meant to be MFC'd at first but the original OMP support for FreeBSD was in very poor shape. The effect of this change should be minimal as all ports are already using the version of libgomp that comes with the gcc ports. The local libgomp is planned to be disabled for platforms that are not using older gcc by default so this version of libgomp will not be shipped in tier-1 platform releases. Discussed with: emaste
311 lines
10 KiB
Plaintext
311 lines
10 KiB
Plaintext
# Process this file with autoconf to produce a configure script, like so:
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# aclocal -I ../config && autoconf && autoheader && automake
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AC_PREREQ(2.59)
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AC_INIT([GNU OpenMP Runtime Library], 1.0,,[libgomp])
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AC_CONFIG_HEADER(config.h)
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# -------
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# Options
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# -------
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AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
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LIBGOMP_ENABLE(version-specific-runtime-libs, no, ,
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[Specify that runtime libraries should be installed in a compiler-specific directory],
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permit yes|no)
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AC_MSG_RESULT($enable_version_specific_runtime_libs)
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# We would like our source tree to be readonly. However when releases or
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# pre-releases are generated, the flex/bison generated files as well as the
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# various formats of manuals need to be included along with the rest of the
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# sources. Therefore we have --enable-generated-files-in-srcdir to do
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# just that.
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AC_MSG_CHECKING([for --enable-generated-files-in-srcdir])
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LIBGOMP_ENABLE(generated-files-in-srcdir, no, ,
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[put copies of generated files in source dir intended for creating source
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tarballs for users without texinfo bison or flex.],
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permit yes|no)
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AC_MSG_RESULT($enable_generated_files_in_srcdir)
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AM_CONDITIONAL(GENINSRC, test "$enable_generated_files_in_srcdir" = yes)
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# -------
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# -------
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# Gets build, host, target, *_vendor, *_cpu, *_os, etc.
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#
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# You will slowly go insane if you do not grok the following fact: when
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# building this library, the top-level /target/ becomes the library's /host/.
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#
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# configure then causes --target to default to --host, exactly like any
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# other package using autoconf. Therefore, 'target' and 'host' will
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# always be the same. This makes sense both for native and cross compilers
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# just think about it for a little while. :-)
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#
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# Also, if this library is being configured as part of a cross compiler, the
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# top-level configure script will pass the "real" host as $with_cross_host.
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#
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# Do not delete or change the following two lines. For why, see
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# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
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AC_CANONICAL_SYSTEM
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target_alias=${target_alias-$host_alias}
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# Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the
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# following is magically included in AUTOMAKE_OPTIONS in each Makefile.am.
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# 1.9.0: minimum required version
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# no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch
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# of other PACKAGE_* variables will, however, and there's nothing
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# we can do about that; they come from AC_INIT).
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# foreign: we don't follow the normal rules for GNU packages (no COPYING
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# file in the top srcdir, etc, etc), so stop complaining.
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# no-dist: we don't want 'dist' and related rules.
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# -Wall: turns on all automake warnings...
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# -Wno-portability: ...except this one, since GNU make is required.
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# -Wno-override: ... and this one, since we do want this in testsuite.
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AM_INIT_AUTOMAKE([1.9.0 foreign no-dist -Wall -Wno-portability -Wno-override])
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AM_ENABLE_MULTILIB(, ..)
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# Calculate toolexeclibdir
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# Also toolexecdir, though it's only used in toolexeclibdir
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case ${enable_version_specific_runtime_libs} in
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yes)
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# Need the gcc compiler version to know where to install libraries
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# and header files if --enable-version-specific-runtime-libs option
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# is selected.
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toolexecdir='$(libdir)/gcc/$(target_alias)'
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toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
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;;
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no)
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if test -n "$with_cross_host" &&
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test x"$with_cross_host" != x"no"; then
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# Install a library built with a cross compiler in tooldir, not libdir.
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toolexecdir='$(exec_prefix)/$(target_alias)'
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toolexeclibdir='$(toolexecdir)/lib'
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else
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toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
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toolexeclibdir='$(libdir)'
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fi
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multi_os_directory=`$CC -print-multi-os-directory`
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case $multi_os_directory in
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.) ;; # Avoid trailing /.
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*) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
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esac
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;;
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esac
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AC_SUBST(toolexecdir)
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AC_SUBST(toolexeclibdir)
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# Check the compiler.
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# The same as in boehm-gc and libstdc++. Have to borrow it from there.
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# We must force CC to /not/ be precious variables; otherwise
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# the wrong, non-multilib-adjusted value will be used in multilibs.
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# As a side effect, we have to subst CFLAGS ourselves.
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m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
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m4_define([_AC_ARG_VAR_PRECIOUS],[])
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AC_PROG_CC
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m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
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AC_SUBST(CFLAGS)
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# In order to override CFLAGS_FOR_TARGET, all of our special flags go
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# in XCFLAGS. But we need them in CFLAGS during configury. So put them
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# in both places for now and restore CFLAGS at the end of config.
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save_CFLAGS="$CFLAGS"
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# Add -Wall -Werror if we are using GCC.
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if test "x$GCC" = "xyes"; then
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XCFLAGS="$XCFLAGS -Wall -Werror"
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fi
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# Find other programs we need.
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AC_CHECK_TOOL(AR, ar)
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AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
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AC_PATH_PROG(PERL, perl, perl-not-found-in-path-error)
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AC_PROG_MAKE_SET
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AC_PROG_INSTALL
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# See if makeinfo has been installed and is modern enough
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# that we can use it.
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ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version],
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[GNU texinfo.* \([0-9][0-9.]*\)],
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[4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
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AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes")
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# Configure libtool
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AM_PROG_LIBTOOL
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AC_SUBST(enable_shared)
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AC_SUBST(enable_static)
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AM_MAINTAINER_MODE
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# We need gfortran to compile parts of the library
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# We can't use AC_PROG_FC because it expects a fully working gfortran.
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#AC_PROG_FC(gfortran)
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FC="$GFORTRAN"
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AC_PROG_FC(gfortran)
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FCFLAGS="$FCFLAGS -Wall"
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# For libtool versioning info, format is CURRENT:REVISION:AGE
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libtool_VERSION=1:0:0
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AC_SUBST(libtool_VERSION)
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# Check header files.
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AC_STDC_HEADERS
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AC_HEADER_TIME
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AC_CHECK_HEADERS(unistd.h semaphore.h sys/loadavg.h sys/sysctl.h sys/time.h)
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GCC_HEADER_STDINT(gstdint.h)
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# Check to see if -pthread or -lpthread is needed. Prefer the former.
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# In case the pthread.h system header is not found, this test will fail.
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XPCFLAGS=""
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CFLAGS="$CFLAGS -pthread"
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[#include <pthread.h>
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void *g(void *d) { return NULL; }],
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[pthread_t t; pthread_create(&t,NULL,g,NULL);])],
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[XPCFLAGS=" -Wc,-pthread"],
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[CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS"
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[#include <pthread.h>
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void *g(void *d) { return NULL; }],
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[pthread_t t; pthread_create(&t,NULL,g,NULL);])],
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[],
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[AC_MSG_ERROR([Pthreads are required to build libgomp])])])
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# Check for functions needed.
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AC_CHECK_FUNCS(getloadavg clock_gettime)
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# Check for broken semaphore implementation on darwin.
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# sem_init returns: sem_init error: Function not implemented.
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case "$host" in
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*-darwin*)
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AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1,
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Define if the POSIX Semaphores do not work on your system.)
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;;
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esac
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GCC_LINUX_FUTEX(:)
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# Check for pthread_{,attr_}[sg]etaffinity_np.
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[#define _GNU_SOURCE
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#include <pthread.h>],
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[cpu_set_t cpuset;
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pthread_attr_t attr;
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pthread_getaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
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if (CPU_ISSET (0, &cpuset))
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CPU_SET (1, &cpuset);
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else
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CPU_ZERO (&cpuset);
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pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
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pthread_attr_init (&attr);
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pthread_attr_getaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);
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pthread_attr_setaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);])],
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AC_DEFINE(HAVE_PTHREAD_AFFINITY_NP, 1,
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[ Define if pthread_{,attr_}{g,s}etaffinity_np is supported.]))
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# At least for glibc, clock_gettime is in librt. But don't pull that
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# in if it still doesn't give us the function we want.
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if test $ac_cv_func_clock_gettime = no; then
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AC_CHECK_LIB(rt, clock_gettime,
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[LIBS="-lrt $LIBS"
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AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
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[Define to 1 if you have the `clock_gettime' function.])])
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fi
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# See if we support thread-local storage.
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GCC_CHECK_TLS
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# See what sort of export controls are availible.
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LIBGOMP_CHECK_ATTRIBUTE_VISIBILITY
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LIBGOMP_CHECK_ATTRIBUTE_DLLEXPORT
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LIBGOMP_CHECK_ATTRIBUTE_ALIAS
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LIBGOMP_ENABLE_SYMVERS
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# Get target configury.
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. ${srcdir}/configure.tgt
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CFLAGS="$save_CFLAGS $XCFLAGS"
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# Check for __sync_val_compare_and_swap, but only after the target has
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# had a chance to set XCFLAGS.
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LIBGOMP_CHECK_SYNC_BUILTINS
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XCFLAGS="$XCFLAGS$XPCFLAGS"
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AC_SUBST(config_path)
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AC_SUBST(XCFLAGS)
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AC_SUBST(XLDFLAGS)
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# Cleanup and exit.
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CFLAGS="$save_CFLAGS"
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AC_CACHE_SAVE
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if test ${multilib} = yes; then
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multilib_arg="--enable-multilib"
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else
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multilib_arg=
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fi
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# Set up the set of libraries that we need to link against for libgomp.
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# Note that the GOMP_SELF_SPEC in gcc.c will force -pthread for -fopenmp,
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# which will force linkage against -lpthread (or equivalent for the system).
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# That's not 100% ideal, but about the best we can do easily.
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if test $enable_shared = yes; then
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link_gomp="-lgomp %{static: $LIBS}"
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else
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link_gomp="-lgomp $LIBS"
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fi
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AC_SUBST(link_gomp)
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AM_CONDITIONAL([USE_FORTRAN], [test "$ac_cv_fc_compiler_gnu" = yes])
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# ??? 2006-01-24: Paulo committed to asking autoconf folk to document
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# and export AC_COMPUTE_INT. If that happens, then we'll need to remove
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# the underscore here and update the PREREQ. If it doesn't, then we'll
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# need to copy this macro to our acinclude.m4.
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save_CFLAGS="$CFLAGS"
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for i in $config_path; do
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if test -f $srcdir/config/$i/omp-lock.h; then
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CFLAGS="$CFLAGS -include $srcdir/config/$i/omp-lock.h"
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break
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fi
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done
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_AC_COMPUTE_INT([sizeof (omp_lock_t)], [OMP_LOCK_SIZE],,
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[AC_MSG_ERROR([unsupported system, cannot find sizeof (omp_lock_t)])])
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_AC_COMPUTE_INT([__alignof (omp_lock_t)], [OMP_LOCK_ALIGN])
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_AC_COMPUTE_INT([sizeof (omp_nest_lock_t)], [OMP_NEST_LOCK_SIZE])
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_AC_COMPUTE_INT([__alignof (omp_nest_lock_t)], [OMP_NEST_LOCK_ALIGN])
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# If the lock fits in an integer, then arrange for Fortran to use that
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# integer. If it doesn't, then arrange for Fortran to use a pointer.
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# Except that we don't have a way at present to multi-lib the installed
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# Fortran modules, so we assume 8 bytes for pointers, regardless of the
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# actual target.
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OMP_LOCK_KIND=$OMP_LOCK_SIZE
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OMP_NEST_LOCK_KIND=$OMP_NEST_LOCK_SIZE
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if test $OMP_LOCK_SIZE -gt 8 || test $OMP_LOCK_ALIGN -gt $OMP_LOCK_SIZE; then
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OMP_LOCK_KIND=8
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fi
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if test $OMP_NEST_LOCK_SIZE -gt 8 || test $OMP_NEST_LOCK_ALIGN -gt $OMP_NEST_LOCK_SIZE; then
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OMP_NEST_LOCK_KIND=8
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fi
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AC_SUBST(OMP_LOCK_SIZE)
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AC_SUBST(OMP_LOCK_ALIGN)
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AC_SUBST(OMP_NEST_LOCK_SIZE)
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AC_SUBST(OMP_NEST_LOCK_ALIGN)
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AC_SUBST(OMP_LOCK_KIND)
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AC_SUBST(OMP_NEST_LOCK_KIND)
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CFLAGS="$save_CFLAGS"
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AC_CONFIG_FILES(omp.h omp_lib.h omp_lib.f90 libgomp_f.h)
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AC_CONFIG_FILES(Makefile testsuite/Makefile libgomp.spec)
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AC_OUTPUT
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