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-rw-r--r--attract.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/attract.c b/attract.c
index 5ab9aa7..7a31bb9 100644
--- a/attract.c
+++ b/attract.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>