Index: configure.ac
==================================================================
--- configure.ac
+++ configure.ac
@@ -607,10 +607,12 @@
 
 		AC_CHECK_FUNC(sched_yield, [
 			AC_DEFINE(OF_HAVE_SCHED_YIELD, 1,
 				[Whether we have sched_yield()])
 		])
+
+		AC_CHECK_FUNCS(pthread_attr_setinheritsched)
 
 		AC_CHECK_HEADERS(pthread_np.h, [], [], [#include <pthread.h>])
 		AC_CHECK_FUNCS(pthread_set_name_np pthread_setname_np, break)
 		;;
 	esac

Index: src/threading_pthread.m
==================================================================
--- src/threading_pthread.m
+++ src/threading_pthread.m
@@ -104,13 +104,15 @@
 			maxPrio = sched_get_priority_max(policy);
 
 			param.sched_priority = (float)minPrio +
 			    attr->priority * (maxPrio - minPrio);
 
+#ifdef HAVE_PTHREAD_ATTR_SETINHERITSCHED
 			if (pthread_attr_setinheritsched(&pattr,
 			    PTHREAD_EXPLICIT_SCHED) != 0)
 				return false;
+#endif
 
 			if (pthread_attr_setschedparam(&pattr, &param) != 0)
 				return false;
 
 			if (attr->stackSize > 0) {