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-rw-r--r--src/sysdeps/trynbwaitall.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/sysdeps/trynbwaitall.c b/src/sysdeps/trynbwaitall.c
index 0277ead..90a02e6 100644
--- a/src/sysdeps/trynbwaitall.c
+++ b/src/sysdeps/trynbwaitall.c
@@ -10,6 +10,9 @@
#ifndef _BSD_SOURCE
#define _BSD_SOURCE
#endif
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
#include <sys/types.h>
#include <fcntl.h>