--- src/common/classes/rwlock.h	2015-03-27 14:47:01.000000000 +0100
+++ src/common/classes/rwlock.h	2016-02-24 15:11:46.043602883 +0100
@@ -191,7 +191,7 @@
 
 	void init()
 	{
-#if defined(LINUX) && !defined(USE_VALGRIND)
+#if defined(LINUX) && defined(__GLIBC__) && !defined(USE_VALGRIND)
 		pthread_rwlockattr_t attr;
 		if (pthread_rwlockattr_init(&attr))
 			system_call_failed::raise("pthread_rwlockattr_init");
