diff -up ./src/fonts/freetype.cpp.orig ./src/fonts/freetype.cpp
--- ./src/fonts/freetype.cpp.orig	2013-08-20 19:01:48.959360342 +0300
+++ ./src/fonts/freetype.cpp	2013-08-20 19:01:51.040276513 +0300
@@ -32,6 +32,8 @@
 
    20050613 mortene. */
 
+#include <cstdlib>
+#include <cmath>
 #include "fonts/freetype.h"
 
 #ifdef HAVE_CONFIG_H