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-rw-r--r--examples/output-layout.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/output-layout.c b/examples/output-layout.c
index 560a7113..771ccd77 100644
--- a/examples/output-layout.c
+++ b/examples/output-layout.c
@@ -1,5 +1,5 @@
#define _POSIX_C_SOURCE 199309L
-#define _XOPEN_SOURCE 500
+#define _XOPEN_SOURCE 700
#include <stdio.h>
#include <stdlib.h>
#include <time.h>