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-rw-r--r--src/legacy/getpagesize.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/legacy/getpagesize.c b/src/legacy/getpagesize.c
index a47995cb..0fc29ffc 100644
--- a/src/legacy/getpagesize.c
+++ b/src/legacy/getpagesize.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
#include <unistd.h>
#include "libc.h"