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-rw-r--r--test/inet/bug-if1.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/test/inet/bug-if1.c b/test/inet/bug-if1.c
index ea84a68..d4f8fa7 100644
--- a/test/inet/bug-if1.c
+++ b/test/inet/bug-if1.c
@@ -16,6 +16,8 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#define _GNU_SOURCE 1
+
#include <errno.h>
#include <limits.h>
#include <stdio.h>