--- makedefs.orig	2016-07-09 20:06:01 UTC
+++ makedefs
@@ -166,6 +166,12 @@ case "$SYSTEM.$RELEASE" in
   FreeBSD.10*)	SYSTYPE=FREEBSD10
 		: ${CC=cc}
 		;;
+  FreeBSD.11*)	SYSTYPE=FREEBSD11
+		: ${CC=cc}
+		;;
+  FreeBSD.12*)	SYSTYPE=FREEBSD12
+		: ${CC=cc}
+		;;
  DragonFly.*)	SYSTYPE=DRAGONFLY
 		;;
   OpenBSD.2*)	SYSTYPE=OPENBSD2
