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-rw-r--r--m4/pthreads.m439
1 files changed, 36 insertions, 3 deletions
diff --git a/m4/pthreads.m4 b/m4/pthreads.m4
index ecc580e9a..653a496da 100644
--- a/m4/pthreads.m4
+++ b/m4/pthreads.m4
@@ -20,9 +20,10 @@ AC_DEFUN([CC_PTHREAD_FLAGS], [
case $host in
*-hpux11*) PTHREAD_CFLAGS="" ;;
*-darwin*) PTHREAD_CFLAGS="" ;;
- *-solaris*)
- # Handle Studio compiler
+ *-solaris*|*-linux-gnu)
+ dnl Handle Sun Studio compiler (also on Linux)
CC_CHECK_CFLAGS([-mt], [PTHREAD_CFLAGS="-mt"]);;
+
*) PTHREAD_CFLAGS="-pthread" ;;
esac
fi
@@ -31,10 +32,15 @@ AC_DEFUN([CC_PTHREAD_FLAGS], [
*-hpux11*) PTHREAD_LIBS="-lpthread" ;;
*-darwin*) PTHREAD_LIBS="" ;;
*-solaris*)
- # Use the same libraries for gcc and sun studio cc
+ dnl Use the same libraries for gcc and Sun Studio cc
PTHREAD_LIBS="-lpthread -lposix4 -lrt";;
*) PTHREAD_LIBS="-pthread" ;;
esac
+
+ dnl Again, handle Sun Studio compiler
+ if test "x${PTHREAD_CFLAGS}" = "x-mt"; then
+ PTHREAD_LIBS="-mt"
+ fi
fi
AC_CACHE_CHECK([if $CC supports Pthread],
@@ -67,3 +73,30 @@ AC_DEFUN([CC_PTHREAD_FLAGS], [
ifelse([$2], , [:], [$2])
fi
])
+
+AC_DEFUN([CC_PTHREAD_RECURSIVE_MUTEX], [
+ AC_REQUIRE([CC_PTHREAD_FLAGS])
+ AC_CACHE_CHECK(
+ [for recursive mutex support in pthread],
+ [cc_cv_pthread_recursive_mutex],
+ [ac_save_LIBS="$LIBS"
+ LIBS="$LIBS $PTHREAD_LIBS"
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([
+#include <pthread.h>
+ ], [
+int main() {
+ pthread_mutexattr_t attr;
+ pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+ return 0;
+}
+ ])
+ ],
+ [cc_cv_pthread_recursive_mutex=yes],
+ [cc_cv_pthread_recursive_mutex=no])
+ LIBS="$ac_save_LIBS"
+ ])
+
+ AS_IF([test x"$cc_cv_pthread_recursive_mutex" = x"yes"],
+ [$1], [$2])
+])