Index: python/Makefile.in
--- python/Makefile.in.orig
+++ python/Makefile.in
@@ -856,7 +856,7 @@ uninstall-am:
 @PYTHON_TRUE@distclean: clean
 
 @PYTHON_TRUE@python-install:
-@PYTHON_TRUE@	$(PYTHON) setup.py install --prefix=$(DESTDIR)$(prefix)
+@PYTHON_TRUE@	$(PYTHON) setup.py install --prefix=$(prefix) --single-version-externally-managed --root=$(DESTDIR)
 
 @PYTHON_TRUE@install-exec-local: python-install