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-rw-r--r--src/cairo-tests/stroke.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/cairo-tests/stroke.cpp b/src/cairo-tests/stroke.cpp
index 9ecda3b..2b2f218 100644
--- a/src/cairo-tests/stroke.cpp
+++ b/src/cairo-tests/stroke.cpp
@@ -3,6 +3,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <cairo.h>
+#include <math.h>
#include "caskbench.h"
#include "kinetics.h"