--- engines/Makefile.orig	2010-05-15 21:24:54.986089920 +0200
+++ engines/Makefile	2010-05-15 21:26:51.409085467 +0200
@@ -111,7 +111,7 @@
 		for l in $(LIBNAMES); do \
 			( echo installing $$l; \
 			  pfx=lib; \
-			  if [ "$(PLATFORM)" = "mingw" ]; then \
+			  if [ "$(PLATFORM)" = "mingw" -o "$(PLATFORM)" = "mingw64" ]; then \
 				sfx=.dll; \
 				cp $$pfx$$l$$sfx $(INSTALL_PREFIX)$(INSTALLTOP)/lib/engines/$$pfx$$l$$sfx.new; \
 			  elif [ "$(PLATFORM)" != "Cygwin" ]; then \