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-rw-r--r--examples/make_dcp.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/examples/make_dcp.cc b/examples/make_dcp.cc
index d86cd30a..910fb8cb 100644
--- a/examples/make_dcp.cc
+++ b/examples/make_dcp.cc
@@ -41,6 +41,7 @@
#include "file.h"
#include "reel_mono_picture_asset.h"
#include "reel_sound_asset.h"
+#include <cmath>
int
main ()