Include sys/macros.h explicitly in filesys.c for the definitions

of major(), minor() and makedev().  These functions are defined
in the sys/sysmacros.h header, not sys/types.h.  Linux C libraries
are updating to drop the implicit include, so we need to include
it explicitly.
(vapier@gentoo.org)

filesys.c

@@ -16,6 +16,7 @@
  */
 
 #include "defs.h"
+#include <sys/sysmacros.h>
 #include <linux/major.h>
 #include <regex.h>
 #include <sys/utsname.h>