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-rw-r--r--harness/main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/harness/main.c b/harness/main.c
index 74b2764..e8f0143 100644
--- a/harness/main.c
+++ b/harness/main.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>
#include <assert.h>