Considerable re-work of KDM class to express the difference between encrypted and...

[libdcp.git] / src / rgb_xyz.cc

diff --git a/src/rgb_xyz.cc b/src/rgb_xyz.cc
index 92997441f14beb7480d2cb5db9fc57bd7eeb19cc..72ee38c1c5802a91d0ea5a5d3aae392c78779d7b 100644 (file)
--- a/src/rgb_xyz.cc
+++ b/src/rgb_xyz.cc
@@ -23,6 +23,7 @@
 #include "gamma_lut.h"
 #include "image.h"
 #include "colour_matrix.h"
+#include <cmath>
 
 using std::min;
 using std::max;