gentoo-overlay/sys-fs/e4rat/files/e4rat-0.2.4-sysmacros.patch

https://sourceforge.net/p/e4rat/tickets/5/
https://bugs.gentoo.org/580534

--- a/src/common.hh
+++ b/src/common.hh
@@ -20,6 +20,7 @@
 #ifndef COMMON_HH
 #define COMMON_HH
 
+#include <sys/sysmacros.h>
 #include <linux/types.h>
 #include <boost/filesystem.hpp>
 #include <boost/regex.hpp>