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-rw-r--r--math.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/math.h b/math.h
index 2c94b0b..48519b4 100644
--- a/math.h
+++ b/math.h
@@ -20,6 +20,7 @@
#include <math.h>
#include <assert.h>
+#include <stdlib.h>
#include "build/config.h"
#include "vector.h"