gentoo-overlay/app-arch/pax/files/pax-3.4-sysmacros.patch

not all C libs pull in this header via sys/types.h for major()/etc...

--- a/src/extern.h
+++ b/src/extern.h
@@ -38,6 +38,7 @@
  */
 
 #include <sys/cdefs.h>
+#include <sys/sysmacros.h>
 
 /*
  * ar_io.c