done
-if test "${ac_cv_header_pthread_h+set}" = set; then
- echo "$as_me:$LINENO: checking for pthread.h" >&5
-echo $ECHO_N "checking for pthread.h... $ECHO_C" >&6
-if test "${ac_cv_header_pthread_h+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_pthread_h" >&5
-echo "${ECHO_T}$ac_cv_header_pthread_h" >&6
-else
- # Is the header compilable?
-echo "$as_me:$LINENO: checking pthread.h usability" >&5
-echo $ECHO_N "checking pthread.h usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$ac_includes_default
-#include <pthread.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_c_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_header_compiler=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_header_compiler=no
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
-
-# Is the header present?
-echo "$as_me:$LINENO: checking pthread.h presence" >&5
-echo $ECHO_N "checking pthread.h presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <pthread.h>
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
- (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_c_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
- ac_header_preproc=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_header_preproc=no
-fi
-rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So? What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
- yes:no: )
- { echo "$as_me:$LINENO: WARNING: pthread.h: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: pthread.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
- { echo "$as_me:$LINENO: WARNING: pthread.h: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: pthread.h: proceeding with the compiler's result" >&2;}
- ac_header_preproc=yes
- ;;
- no:yes:* )
- { echo "$as_me:$LINENO: WARNING: pthread.h: present but cannot be compiled" >&5
-echo "$as_me: WARNING: pthread.h: present but cannot be compiled" >&2;}
- { echo "$as_me:$LINENO: WARNING: pthread.h: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: pthread.h: check for missing prerequisite headers?" >&2;}
- { echo "$as_me:$LINENO: WARNING: pthread.h: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: pthread.h: see the Autoconf documentation" >&2;}
- { echo "$as_me:$LINENO: WARNING: pthread.h: section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: pthread.h: section \"Present But Cannot Be Compiled\"" >&2;}
- { echo "$as_me:$LINENO: WARNING: pthread.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: pthread.h: proceeding with the preprocessor's result" >&2;}
- { echo "$as_me:$LINENO: WARNING: pthread.h: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: pthread.h: in the future, the compiler will take precedence" >&2;}
- (
- cat <<\_ASBOX
-## ----------------------------------------------------- ##
-## Report this to the GNU OpenMP Runtime Library lists. ##
-## ----------------------------------------------------- ##
-_ASBOX
- ) |
- sed "s/^/$as_me: WARNING: /" >&2
- ;;
-esac
-echo "$as_me:$LINENO: checking for pthread.h" >&5
-echo $ECHO_N "checking for pthread.h... $ECHO_C" >&6
-if test "${ac_cv_header_pthread_h+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_cv_header_pthread_h=$ac_header_preproc
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_pthread_h" >&5
-echo "${ECHO_T}$ac_cv_header_pthread_h" >&6
-
-fi
-if test $ac_cv_header_pthread_h = yes; then
- :
-else
- { { echo "$as_me:$LINENO: error: Pthreads are required to build libgomp" >&5
-echo "$as_me: error: Pthreads are required to build libgomp" >&2;}
- { (exit 1); exit 1; }; }
-fi
-
-
# 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="$CFLAGS -pthread"
cat >conftest.$ac_ext <<_ACEOF
done
+# Check for broken semaphore implementation on darwin.
+# sem_init returns: sem_init error: Function not implemented.
+case "$host" in
+ *-darwin*)
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_BROKEN_POSIX_SEMAPHORES 1
+_ACEOF
+
+ ;;
+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
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