--- ./include/cmath.orig	2014-01-06 19:12:50.000000000 +0100
+++ ./include/cmath	2014-05-06 14:14:44.388681947 +0200
@@ -299,6 +299,7 @@
 
 #include <__config>
 #include <math.h>
+#include <missing_math.h>
 #include <type_traits>
 
 #ifdef _LIBCPP_MSVCRT