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-rw-r--r--polyp/xmalloc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/polyp/xmalloc.c b/polyp/xmalloc.c
index 709e46e5..981b3c92 100644
--- a/polyp/xmalloc.c
+++ b/polyp/xmalloc.c
@@ -26,6 +26,7 @@
#include <stdlib.h>
#include <signal.h>
#include <assert.h>
+#include <unistd.h>
#include "memory.h"
#include "util.h"