Fix gdb.threads/watchpoint-fork*.c compilation

[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.threads / watchpoint-fork.h

diff --git a/gdb/testsuite/gdb.threads/watchpoint-fork.h b/gdb/testsuite/gdb.threads/watchpoint-fork.h
index 8ea193782e775e58afc95305dcd2de92aa3e6bc2..87307aeed0b851499cad1716155d8a29673dd62f 100644 (file)
--- a/gdb/testsuite/gdb.threads/watchpoint-fork.h
+++ b/gdb/testsuite/gdb.threads/watchpoint-fork.h
@@ -17,6 +17,9 @@
    You should have received a copy of the GNU General Public License
    along with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
+/* pthread_yield is a GNU extension.  */
+#define _GNU_SOURCE
+
 #ifdef THREAD
 #include <pthread.h>