c663e30103
libcpp: PR c/28768 PR preprocessor/14634 * lex.c (lex_string): Pedwarn for unterminated literals. libgomp: * configure.ac (HAVE_CLOCK_GETTIME): Add missing second argument to AC_DEFINE. * configure: Regenerate. gcc/testsuite: * gcc.dg/cpp/include2.c, gcc.dg/cpp/macspace1.c, gcc.dg/cpp/macspace2.c, gcc.dg/cpp/multiline.c, gcc.dg/cpp/trad/literals-2.c: Update expected diagnostics. From-SVN: r116915
323 lines
10 KiB
Plaintext
323 lines
10 KiB
Plaintext
# Process this file with autoconf to produce a configure script, like so:
|
|
# aclocal -I ../config && autoconf && autoheader && automake
|
|
|
|
AC_PREREQ(2.59)
|
|
AC_INIT([GNU OpenMP Runtime Library], 1.0,,[libgomp])
|
|
AC_CONFIG_HEADER(config.h)
|
|
|
|
# -------
|
|
# Options
|
|
# -------
|
|
|
|
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
|
|
LIBGOMP_ENABLE(version-specific-runtime-libs, no, ,
|
|
[Specify that runtime libraries should be installed in a compiler-specific directory],
|
|
permit yes|no)
|
|
AC_MSG_RESULT($enable_version_specific_runtime_libs)
|
|
|
|
AC_MSG_CHECKING([for --enable-linux-futex])
|
|
LIBGOMP_ENABLE(linux-futex, default, ,
|
|
[Use the Linux futex system call],
|
|
permit yes|no|default)
|
|
AC_MSG_RESULT($enable_linux_futex)
|
|
|
|
# -------
|
|
# -------
|
|
|
|
# Gets build, host, target, *_vendor, *_cpu, *_os, etc.
|
|
#
|
|
# You will slowly go insane if you do not grok the following fact: when
|
|
# building this library, the top-level /target/ becomes the library's /host/.
|
|
#
|
|
# configure then causes --target to default to --host, exactly like any
|
|
# other package using autoconf. Therefore, 'target' and 'host' will
|
|
# always be the same. This makes sense both for native and cross compilers
|
|
# just think about it for a little while. :-)
|
|
#
|
|
# Also, if this library is being configured as part of a cross compiler, the
|
|
# top-level configure script will pass the "real" host as $with_cross_host.
|
|
#
|
|
# Do not delete or change the following two lines. For why, see
|
|
# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
|
|
AC_CANONICAL_SYSTEM
|
|
target_alias=${target_alias-$host_alias}
|
|
|
|
# Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the
|
|
# following is magically included in AUTOMAKE_OPTIONS in each Makefile.am.
|
|
# 1.9.0: minimum required version
|
|
# no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch
|
|
# of other PACKAGE_* variables will, however, and there's nothing
|
|
# we can do about that; they come from AC_INIT).
|
|
# foreign: we don't follow the normal rules for GNU packages (no COPYING
|
|
# file in the top srcdir, etc, etc), so stop complaining.
|
|
# no-dependencies: turns off auto dependency generation (just for now)
|
|
# -Wall: turns on all automake warnings...
|
|
# -Wno-portability: ...except this one, since GNU make is required.
|
|
# -Wno-override: ... and this one, since we do want this in testsuite.
|
|
AM_INIT_AUTOMAKE([1.9.0 foreign -Wall -Wno-portability -Wno-override])
|
|
AM_ENABLE_MULTILIB(, ..)
|
|
|
|
# Calculate toolexeclibdir
|
|
# Also toolexecdir, though it's only used in toolexeclibdir
|
|
case ${enable_version_specific_runtime_libs} in
|
|
yes)
|
|
# Need the gcc compiler version to know where to install libraries
|
|
# and header files if --enable-version-specific-runtime-libs option
|
|
# is selected.
|
|
toolexecdir='$(libdir)/gcc/$(target_alias)'
|
|
toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
|
|
;;
|
|
no)
|
|
if test -n "$with_cross_host" &&
|
|
test x"$with_cross_host" != x"no"; then
|
|
# Install a library built with a cross compiler in tooldir, not libdir.
|
|
toolexecdir='$(exec_prefix)/$(target_alias)'
|
|
toolexeclibdir='$(toolexecdir)/lib'
|
|
else
|
|
toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
|
|
toolexeclibdir='$(libdir)'
|
|
fi
|
|
multi_os_directory=`$CC -print-multi-os-directory`
|
|
case $multi_os_directory in
|
|
.) ;; # Avoid trailing /.
|
|
*) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
|
|
esac
|
|
;;
|
|
esac
|
|
AC_SUBST(toolexecdir)
|
|
AC_SUBST(toolexeclibdir)
|
|
|
|
# Check the compiler.
|
|
# The same as in boehm-gc and libstdc++. Have to borrow it from there.
|
|
# We must force CC to /not/ be precious variables; otherwise
|
|
# the wrong, non-multilib-adjusted value will be used in multilibs.
|
|
# As a side effect, we have to subst CFLAGS ourselves.
|
|
|
|
m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
|
|
m4_define([_AC_ARG_VAR_PRECIOUS],[])
|
|
AC_PROG_CC
|
|
m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
|
|
|
|
AC_SUBST(CFLAGS)
|
|
|
|
# In order to override CFLAGS_FOR_TARGET, all of our special flags go
|
|
# in XCFLAGS. But we need them in CFLAGS during configury. So put them
|
|
# in both places for now and restore CFLAGS at the end of config.
|
|
save_CFLAGS="$CFLAGS"
|
|
|
|
# Add -Wall -Werror if we are using GCC.
|
|
if test "x$GCC" = "xyes"; then
|
|
XCFLAGS="$XCFLAGS -Wall -Werror"
|
|
fi
|
|
|
|
# Find other programs we need.
|
|
AC_CHECK_TOOL(AR, ar)
|
|
AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
|
|
AC_PATH_PROG(PERL, perl, perl-not-found-in-path-error)
|
|
AC_PROG_MAKE_SET
|
|
AC_PROG_INSTALL
|
|
|
|
# Configure libtool
|
|
AM_PROG_LIBTOOL
|
|
AC_SUBST(enable_shared)
|
|
AC_SUBST(enable_static)
|
|
|
|
AM_MAINTAINER_MODE
|
|
|
|
# We need gfortran to compile parts of the library
|
|
# We can't use AC_PROG_FC because it expects a fully working gfortran.
|
|
#AC_PROG_FC(gfortran)
|
|
FC="$GFORTRAN"
|
|
AC_PROG_FC(gfortran)
|
|
FCFLAGS="$FCFLAGS -Wall"
|
|
|
|
# For libtool versioning info, format is CURRENT:REVISION:AGE
|
|
libtool_VERSION=1:0:0
|
|
AC_SUBST(libtool_VERSION)
|
|
|
|
# Check header files.
|
|
AC_STDC_HEADERS
|
|
AC_HEADER_TIME
|
|
AC_CHECK_HEADERS(unistd.h semaphore.h sys/loadavg.h sys/time.h)
|
|
|
|
GCC_HEADER_STDINT(gstdint.h)
|
|
|
|
# Check to see if -pthread or -lpthread is needed. Prefer the former.
|
|
# In case the pthread.h system header is not found, this test will fail.
|
|
XPCFLAGS=""
|
|
|
|
# Darwin doesn't need the -pthread option since threads are in libSystem
|
|
AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[#include <pthread.h>
|
|
void *g(void *d) { return NULL; }],
|
|
[pthread_t t; pthread_create(&t,NULL,g,NULL);])],
|
|
[case $host in
|
|
*-darwin*)
|
|
;;
|
|
default)
|
|
XPCFLAGS=" -Wc,-pthread"
|
|
;;
|
|
esac],
|
|
[CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS"
|
|
AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[#include <pthread.h>
|
|
void *g(void *d) { return NULL; }],
|
|
[pthread_t t; pthread_create(&t,NULL,g,NULL);])],
|
|
[],
|
|
[AC_MSG_ERROR([Pthreads are required to build libgomp])])])
|
|
|
|
# Check for functions needed.
|
|
AC_CHECK_FUNCS(getloadavg clock_gettime)
|
|
|
|
# Check for broken semaphore implementation on darwin.
|
|
# sem_init returns: sem_init error: Function not implemented.
|
|
case "$host" in
|
|
*-darwin*)
|
|
AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1,
|
|
Define if the POSIX Semaphores do not work on your system.)
|
|
;;
|
|
*-linux*)
|
|
case "$enable_linux_futex" in
|
|
default)
|
|
# If headers don't have gettid/futex syscalls definition, then
|
|
# default to no, otherwise there will be compile time failures.
|
|
# Otherwise, default to yes. If we don't detect we are
|
|
# compiled/linked against NPTL and not cross-compiling, check
|
|
# if programs are run by default against NPTL and if not, issue
|
|
# a warning.
|
|
enable_linux_futex=no
|
|
AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[#include <sys/syscall.h>
|
|
int lk;],
|
|
[syscall (SYS_gettid); syscall (SYS_futex, &lk, 0, 0, 0);])],
|
|
[AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[#ifndef _GNU_SOURCE
|
|
#define _GNU_SOURCE 1
|
|
#endif
|
|
#include <pthread.h>
|
|
pthread_t th; void *status;],
|
|
[pthread_tryjoin_np (th, &status);])],[enable_linux_futex=yes],
|
|
[if test x$cross_compiling = xno; then
|
|
if getconf GNU_LIBPTHREAD_VERSION 2>/dev/null \
|
|
| LC_ALL=C grep -i NPTL > /dev/null 2>/dev/null; then
|
|
AC_MSG_WARN([The kernel might not support futex or gettid syscalls.
|
|
If so, please configure with --disable-linux-futex])
|
|
fi
|
|
fi
|
|
enable_linux_futex=yes])])
|
|
;;
|
|
yes)
|
|
AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[#include <sys/syscall.h>
|
|
int lk;],
|
|
[syscall (SYS_gettid); syscall (SYS_futex, &lk, 0, 0, 0);])],[],
|
|
[AC_MSG_ERROR([SYS_gettid and SYS_futex required for --enable-linux-futex])])
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
|
|
# At least for glibc, clock_gettime is in librt. But don't pull that
|
|
# in if it still doesn't give us the function we want.
|
|
if test $ac_cv_func_clock_gettime = no; then
|
|
AC_CHECK_LIB(rt, clock_gettime,
|
|
[LIBS="-lrt $LIBS"
|
|
AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
|
|
[Define to 1 if you have the `clock_gettime' function.])])
|
|
fi
|
|
|
|
# See if we support thread-local storage.
|
|
GCC_CHECK_TLS
|
|
|
|
# See what sort of export controls are availible.
|
|
LIBGOMP_CHECK_ATTRIBUTE_VISIBILITY
|
|
LIBGOMP_CHECK_ATTRIBUTE_DLLEXPORT
|
|
LIBGOMP_CHECK_ATTRIBUTE_ALIAS
|
|
LIBGOMP_ENABLE_SYMVERS
|
|
|
|
# Get target configury.
|
|
. ${srcdir}/configure.tgt
|
|
CFLAGS="$save_CFLAGS $XCFLAGS"
|
|
|
|
# Check for __sync_val_compare_and_swap, but only after the target has
|
|
# had a chance to set XCFLAGS.
|
|
LIBGOMP_CHECK_SYNC_BUILTINS
|
|
|
|
XCFLAGS="$XCFLAGS$XPCFLAGS"
|
|
|
|
AC_SUBST(config_path)
|
|
AC_SUBST(XCFLAGS)
|
|
AC_SUBST(XLDFLAGS)
|
|
|
|
# Cleanup and exit.
|
|
CFLAGS="$save_CFLAGS"
|
|
AC_CACHE_SAVE
|
|
|
|
if test ${multilib} = yes; then
|
|
multilib_arg="--enable-multilib"
|
|
else
|
|
multilib_arg=
|
|
fi
|
|
|
|
# Set up the set of libraries that we need to link against for libgomp.
|
|
# Note that the GOMP_SELF_SPEC in gcc.c will force -pthread for -fopenmp,
|
|
# which will force linkage against -lpthread (or equivalent for the system).
|
|
# That's not 100% ideal, but about the best we can do easily.
|
|
if test $enable_shared = yes; then
|
|
link_gomp="-lgomp %{static: $LIBS}"
|
|
else
|
|
link_gomp="-lgomp $LIBS"
|
|
fi
|
|
AC_SUBST(link_gomp)
|
|
|
|
AM_CONDITIONAL([USE_FORTRAN], [test "$ac_cv_fc_compiler_gnu" = yes])
|
|
|
|
# ??? 2006-01-24: Paulo committed to asking autoconf folk to document
|
|
# and export AC_COMPUTE_INT. If that happens, then we'll need to remove
|
|
# the underscore here and update the PREREQ. If it doesn't, then we'll
|
|
# need to copy this macro to our acinclude.m4.
|
|
save_CFLAGS="$CFLAGS"
|
|
for i in $config_path; do
|
|
if test -f $srcdir/config/$i/omp-lock.h; then
|
|
CFLAGS="$CFLAGS -include $srcdir/config/$i/omp-lock.h"
|
|
break
|
|
fi
|
|
done
|
|
|
|
_AC_COMPUTE_INT([sizeof (omp_lock_t)], [OMP_LOCK_SIZE],,
|
|
[AC_MSG_ERROR([unsupported system, cannot find sizeof (omp_lock_t)])])
|
|
_AC_COMPUTE_INT([__alignof (omp_lock_t)], [OMP_LOCK_ALIGN])
|
|
_AC_COMPUTE_INT([sizeof (omp_nest_lock_t)], [OMP_NEST_LOCK_SIZE])
|
|
_AC_COMPUTE_INT([__alignof (omp_nest_lock_t)], [OMP_NEST_LOCK_ALIGN])
|
|
|
|
# If the lock fits in an integer, then arrange for Fortran to use that
|
|
# integer. If it doesn't, then arrange for Fortran to use a pointer.
|
|
# Except that we don't have a way at present to multi-lib the installed
|
|
# Fortran modules, so we assume 8 bytes for pointers, regardless of the
|
|
# actual target.
|
|
OMP_LOCK_KIND=$OMP_LOCK_SIZE
|
|
OMP_NEST_LOCK_KIND=$OMP_NEST_LOCK_SIZE
|
|
if test $OMP_LOCK_SIZE -gt 8 || test $OMP_LOCK_ALIGN -gt $OMP_LOCK_SIZE; then
|
|
OMP_LOCK_KIND=8
|
|
fi
|
|
if test $OMP_NEST_LOCK_SIZE -gt 8 || test $OMP_NEST_LOCK_ALIGN -gt $OMP_NEST_LOCK_SIZE; then
|
|
OMP_NEST_LOCK_KIND=8
|
|
fi
|
|
|
|
AC_SUBST(OMP_LOCK_SIZE)
|
|
AC_SUBST(OMP_LOCK_ALIGN)
|
|
AC_SUBST(OMP_NEST_LOCK_SIZE)
|
|
AC_SUBST(OMP_NEST_LOCK_ALIGN)
|
|
AC_SUBST(OMP_LOCK_KIND)
|
|
AC_SUBST(OMP_NEST_LOCK_KIND)
|
|
CFLAGS="$save_CFLAGS"
|
|
|
|
AC_CONFIG_FILES(omp.h omp_lib.h omp_lib.f90 libgomp_f.h)
|
|
AC_CONFIG_FILES(Makefile testsuite/Makefile libgomp.spec)
|
|
AC_OUTPUT
|