--- dot-forward-0.71/conf-cc.orig	2013-11-21 19:31:31.919433262 +0100
+++ dot-forward-0.71/conf-cc	2013-11-21 19:32:00.716576707 +0100
@@ -1,3 +1,3 @@
-cc -O2
+cc -O2 -include errno.h
 
 This will be used to compile .c files.