Index: xpra-3.0.2/setup.py
===================================================================
--- xpra-3.0.2.orig/setup.py
+++ xpra-3.0.2/setup.py
@@ -516,7 +516,7 @@ def cython_add(extension, min_version="0
     #python2.7 setup.py build -b build-2.7 install --no-compile \
     #    --root=/var/tmp/portage/x11-wm/xpra-0.7.0/temp/images/2.7
     if "--no-compile" in sys.argv and not ("build" in sys.argv and "install" in sys.argv):
-        return
+        pass
     assert cython_ENABLED, "cython compilation is disabled"
     cython_version_check(min_version)
     from Cython.Distutils import build_ext