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-rw-r--r--util-src/signal.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/util-src/signal.c b/util-src/signal.c
index a083df54..2cf68800 100644
--- a/util-src/signal.c
+++ b/util-src/signal.c
@@ -26,6 +26,8 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
+#define _POSIX_C_SOURCE 200809L
+
#include <signal.h>
#include <stdlib.h>