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-rw-r--r--lib/colord/cd-test-shared.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/colord/cd-test-shared.c b/lib/colord/cd-test-shared.c
index 325102f..c3b9d23 100644
--- a/lib/colord/cd-test-shared.c
+++ b/lib/colord/cd-test-shared.c
@@ -21,6 +21,10 @@
#include "config.h"
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 500
+#endif
+
#include <limits.h>
#include <stdlib.h>