diff -rup a/mem.c b/mem.c
--- a/mem.c	2016-05-16 19:47:34.000000000 -0400
+++ b/mem.c	2016-07-22 17:15:03.874544654 -0400
@@ -207,6 +207,13 @@ SYS_FUNC(mremap)
 	return RVAL_DECODED | RVAL_HEX;
 }
 
+#ifndef MADV_DONTDUMP
+#define MADV_DONTDUMP 16
+#endif
+#ifndef MADV_DODUMP
+#define MADV_DODUMP 17
+#endif
+
 #include "xlat/madvise_cmds.h"
 
 SYS_FUNC(madvise)
Only in b: mem.c.orig