--- a/pymacs-0.25.ebuild	2013-02-17 14:54:49.000000000 +0100
+++ b/pymacs-0.25.ebuild	2013-02-21 15:03:34.528992153 +0100
@@ -22,9 +22,11 @@
 
 SITEFILE="50${PN}-gentoo.el"
 
-python_configure_all() {
-	# pre-process the files but don't run distutils
-	emake PYSETUP=:
+src_prepare() {
+	preparation() {
+		emake PYSETUP=: PYTHON=${EPYTHON}
+	}
+	python_foreach_impl preparation
 }
 
 src_configure() {