media-gfx/perceptualdiff/files/Metric.cpp-printf-needs-stdio.patch

--- a/Metric.cpp
+++ b/Metric.cpp
@@ -19,6 +19,7 @@
 #include "RGBAImage.h"
 #include "LPyramid.h"
 #include <math.h>
+#include <stdio.h>
 
 #ifndef M_PI
 #define M_PI 3.14159265f