Index: mk/tools/gmake.mk
===================================================================
RCS file: /cvsroot/pkgsrc/mk/tools/gmake.mk,v
retrieving revision 1.2
diff -p -u -r1.2 gmake.mk
--- mk/tools/gmake.mk	21 May 2013 07:13:50 -0000	1.2
+++ mk/tools/gmake.mk	11 Jun 2013 20:19:24 -0000
@@ -63,3 +63,12 @@ _TOOLS_USE_PKGSRC.gmake!=						\
 .  endif
 MAKEVARS+=	_TOOLS_USE_PKGSRC.gmake
 .endif
+
+# XXX Kludge to prevent pkgsrc's internal variable TARGET_ARCH for
+# cross-compilation from leaking into gmake's environment, where it
+# will break the default rules.  Remove either when we start using
+# `env -i' for the build phase or when we replace TARGET_ARCH by
+# TARGET_MACHINE_PLATFORM.
+.if defined(TARGET_ARCH)
+MAKE_ENV+=	TARGET_ARCH=
+.endif