diff -up xvdr-git20120307/src/xvdr/XVDRSession.cpp.glibc-2_17 xvdr-git20120307/src/xvdr/XVDRSession.cpp
--- xvdr-git20120307/src/xvdr/XVDRSession.cpp.glibc-2_17	2012-02-29 14:55:49.000000000 +0100
+++ xvdr-git20120307/src/xvdr/XVDRSession.cpp	2013-01-18 00:45:04.213247904 +0100
@@ -25,6 +25,7 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>