1AC_DEFUN([REALTIME_CHECK_PRIO_INHERIT],[ 2AC_MSG_CHECKING([for PTHREAD_PRIO_INHERIT]) 3AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 4#include <pthread.h>]], [[int main(void) { 5 pthread_mutexattr_t attr; 6 return pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT); 7}]])],[has_priority_inherit="yes"],[]) 8if test "x$has_priority_inherit" = "xyes" ; then 9 AC_DEFINE(HAS_PRIORITY_INHERIT,1,[Define to 1 if you have PTHREAD_PRIO_INHERIT]) 10 AC_MSG_RESULT(yes) 11else 12 AC_MSG_RESULT(no) 13fi 14]) 15