Author: "P. J. McDermott" <pj@pehjota.net>
Subject: Fix "empty variable name" in Make.config

diff -Naur src.orig/mk/Autoconf.mk src/mk/Autoconf.mk
--- src.orig/mk/Autoconf.mk	2012-02-22 12:13:36.000000000 -0500
+++ src/mk/Autoconf.mk	2014-07-25 23:56:24.990010424 -0400
@@ -162,7 +162,7 @@
 	@true
 
 Make.config: $(srcdir)/GNUmakefile
-	@echo -e "$(make-config-q)" > $@
+	@echo "$(make-config-q)" > $@
 	@echo
 	@echo "Make.config written, edit if needed"
 	@echo