--- a/make-rules/makemaker.mk	Thu Jun 13 20:08:09 2013 +0100
+++ b/make-rules/makemaker.mk	Thu Jun 13 19:36:46 2013 -0700
@@ -18,7 +18,7 @@
 #
 # CDDL HEADER END
 #
-# Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
 #
 
 # we only do 32 bit perl for now.
@@ -37,6 +37,7 @@
 
 $(PERLBD_ARCH)-5.8.4/.configured:		PERL_VERSION=5.8.4
 $(PERLBD_ARCH)-5.12/.configured:		PERL_VERSION=5.12
+$(PERLBD_ARCH)-5.12-mt/.configured:		PERL_VERSION=5.12-mt
 
 BUILD_32 =	$(PERL_VERSIONS:%=$(PERLBD_ARCH)-%/.built)
 INSTALL_32 =	$(BUILD_32:%/.built=%/.installed)