# 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_PREREQ(2.64)
+AC_INIT([GNU Offloading and Multi Processing Runtime Library], 1.0,,[libgomp])
AC_CONFIG_HEADER(config.h)
# -------
# 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-dist: we don't want 'dist' and related rules.
# -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_INIT_AUTOMAKE([1.9.0 foreign no-dist -Wall -Wno-portability -Wno-override])
AM_ENABLE_MULTILIB(, ..)
# Calculate toolexeclibdir
# Configure libtool
AM_PROG_LIBTOOL
+ACX_LT_HOST_FLAGS
AC_SUBST(enable_shared)
AC_SUBST(enable_static)
AM_MAINTAINER_MODE
+# Create a spec file, so that compile/link tests don't fail
+test -f libgfortran.spec || touch libgfortran.spec
+FCFLAGS="$FCFLAGS -L."
+
# We need gfortran to compile parts of the library
# We can't use AC_PROG_FC because it expects a fully working gfortran.
#AC_PROG_FC(gfortran)
-FC="$GFORTRAN"
+case `echo $GFORTRAN` in
+ -* | no* )
+ FC=no ;;
+ *)
+ set dummy $GFORTRAN; ac_word=$2
+ if test -x "$ac_word"; then
+ FC="$GFORTRAN"
+ else
+ FC=no
+ fi ;;
+esac
AC_PROG_FC(gfortran)
-FCFLAGS="$FCFLAGS -Wall"
+FCFLAGS="$FCFLAGS -Wall -L../libgfortran"
# For libtool versioning info, format is CURRENT:REVISION:AGE
libtool_VERSION=1:0:0
AC_STDC_HEADERS
AC_HEADER_TIME
ACX_HEADER_STRING
-AC_CHECK_HEADERS(unistd.h semaphore.h sys/loadavg.h sys/time.h sys/time.h)
+AC_CHECK_HEADERS(pthread.h unistd.h semaphore.h sys/loadavg.h sys/sysctl.h sys/time.h)
GCC_HEADER_STDINT(gstdint.h)
-# Check to see if -pthread or -lpthread is needed. Prefer the former.
-# In case the pthread.h system header is not found, this test will fail.
XPCFLAGS=""
-CFLAGS="$CFLAGS -pthread"
-AC_LINK_IFELSE(
- [AC_LANG_PROGRAM(
- [#include <pthread.h>
- void *g(void *d) { return NULL; }],
- [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
- [XPCFLAGS=" -Wc,-pthread"],
- [CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS"
- AC_LINK_IFELSE(
- [AC_LANG_PROGRAM(
- [#include <pthread.h>
- void *g(void *d) { return NULL; }],
- [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
- [],
- [AC_MSG_ERROR([Pthreads are required to build libgomp])])])
+case "$host" in
+ *-*-rtems*)
+ # RTEMS supports Pthreads, but the library is not available at GCC build time.
+ ;;
+ nvptx*-*-*)
+ # NVPTX does not support Pthreads, has its own code replacement.
+ libgomp_use_pthreads=no
+ # NVPTX is an accelerator-only target
+ libgomp_offloaded_only=yes
+ ;;
+ *)
+ # 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.
+ CFLAGS="$CFLAGS -pthread"
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [#include <pthread.h>
+ void *g(void *d) { return NULL; }],
+ [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
+ [XPCFLAGS=" -Wc,-pthread"],
+ [CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS"
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [#include <pthread.h>
+ void *g(void *d) { return NULL; }],
+ [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
+ [],
+ [AC_MSG_ERROR([Pthreads are required to build libgomp])])])
+esac
+
+if test x$libgomp_use_pthreads != xno; then
+ AC_DEFINE(LIBGOMP_USE_PTHREADS, 1,
+ [Define to 1 if libgomp should use POSIX threads.])
+fi
+
+if test x$libgomp_offloaded_only = xyes; then
+ AC_DEFINE(LIBGOMP_OFFLOADED_ONLY, 1,
+ [Define to 1 if building libgomp for an accelerator-only target.])
+fi
+
+m4_include([plugin/configfrag.ac])
# Check for functions needed.
AC_CHECK_FUNCS(getloadavg clock_gettime strtoull)
;;
esac
+# RTEMS specific checks
+case "$host" in
+ *-*-rtems*)
+ AC_CHECK_TYPES([struct _Mutex_Control],[],[],[#include <sys/lock.h>])
+ ;;
+esac
+
GCC_LINUX_FUTEX(:)
# Check for pthread_{,attr_}[sg]etaffinity_np.
# See if we support thread-local storage.
GCC_CHECK_TLS
-# See what sort of export controls are availible.
+# See if we have emulated thread-local storage.
+GCC_CHECK_EMUTLS
+
+# See what sort of export controls are available.
LIBGOMP_CHECK_ATTRIBUTE_VISIBILITY
LIBGOMP_CHECK_ATTRIBUTE_DLLEXPORT
LIBGOMP_CHECK_ATTRIBUTE_ALIAS
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,
+# Note that the GOMP_SELF_SPEC in gcc.c may force -pthread,
# 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 $enable_shared = yes; then
AC_SUBST(OMP_NEST_LOCK_25_KIND)
CFLAGS="$save_CFLAGS"
+# Determine what GCC version number to use in filesystem paths.
+GCC_BASE_VER
+
AC_CONFIG_FILES(omp.h omp_lib.h omp_lib.f90 libgomp_f.h)
AC_CONFIG_FILES(Makefile testsuite/Makefile libgomp.spec)
+AC_CONFIG_FILES([testsuite/libgomp-test-support.pt.exp:testsuite/libgomp-test-support.exp.in])
AC_OUTPUT
projects / gcc.git / blobdiff