Compiles now with older glibc versions too.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8034

diff --git a/exp-drd/tests/rwlock_test.c b/exp-drd/tests/rwlock_test.c
index c094b115a09087d1a12db06a4e9a86fedcb18497..87731f5b2613e7556ffae56c28f2bf209ce02649 100644 (file)
--- a/exp-drd/tests/rwlock_test.c
+++ b/exp-drd/tests/rwlock_test.c
@@ -3,6 +3,8 @@
  */
 
 
+#define _GNU_SOURCE 1
+
 #include <pthread.h>
 #include <stdio.h>