--- /usr/portage/eclass/mozcoreconf-2.eclass	2012-05-02 12:01:13.000000000 -0700
+++ mozcoreconf-2.eclass	2012-05-23 18:51:31.208949972 -0700
@@ -76,6 +76,8 @@
 	export ALDFLAGS=${LDFLAGS}
 
 	python_set_active_version 2
+
+	eval unset MOZCONFIG
 }
 
 mozconfig_init() {