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-rw-r--r--src/linux/sbrk.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/linux/sbrk.c b/src/linux/sbrk.c
index 1e82d643..bb866305 100644
--- a/src/linux/sbrk.c
+++ b/src/linux/sbrk.c
@@ -1,3 +1,5 @@
+#define _BSD_SOURCE
+#include <unistd.h>
#include <stdint.h>
#include <errno.h>
#include "syscall.h"