--- include/gal/graphics_abstraction_layer.h.orig	2016-04-16 13:14:32.003824016 +0200
+++ include/gal/graphics_abstraction_layer.h	2016-04-16 13:15:06.143789160 +0200
@@ -31,4 +31,5 @@
 #include <stack>
 #include <limits>
+#include <cmath>
 
 #include <math/matrix3x3.h>
