diff options
| -rw-r--r-- | m4/pthreads.m4 | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/m4/pthreads.m4 b/m4/pthreads.m4 index fb1adaab8..facac076f 100644 --- a/m4/pthreads.m4 +++ b/m4/pthreads.m4 @@ -73,3 +73,28 @@ AC_DEFUN([CC_PTHREAD_FLAGS], [ ifelse([$2], , [:], [$2]) fi ]) + +AC_DEFUN([CC_PTHREAD_RECURSIVE_MUTEX], [ + AC_REQUIRE([CC_PTHREAD_FLAGS]) + AC_MSG_CHECKING([for recursive mutex support in pthread]) + + ac_save_LIBS="$LIBS" + LIBS="$LIBS $PTHREAD_LIBS" + AC_COMPILE_IFELSE(AC_LANG_SOURCE([#include <pthread.h> + +int main() { + pthread_mutexattr_t attr; + pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); + return 0; +} + ]), [have_recursive_mutex=yes], [have_recursive_mutex=no]) + LIBS="$ac_save_LIBS" + + AC_MSG_RESULT([$have_recursive_mutex]) + + if test x"$have_recursive_mutex" = x"yes"; then + ifelse([$1], , [:], [$1]) + else + ifelse([$2], , [:], [$2]) + fi +]) |