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-rw-r--r--bf.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/bf.c b/bf.c
index 7f7e030..788b516 100644
--- a/bf.c
+++ b/bf.c
@@ -20,6 +20,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <unistd.h>
typedef struct cell Cell;