diff -Naur libdigidocpp-0.3.0.orig/src/XmlConf.cpp libdigidocpp-0.3.0/src/XmlConf.cpp
--- libdigidocpp-0.3.0.orig/src/XmlConf.cpp	2010-03-25 13:09:55.000000000 +0100
+++ libdigidocpp-0.3.0/src/XmlConf.cpp	2012-01-19 05:49:52.744886310 +0100
@@ -27,6 +27,8 @@
 #include <fstream>
 #include <stdio.h>
 
+#include <unistd.h>
+
 #ifdef _WIN32
 #include <windows.h>
 #include <Winreg.h>