--- i2c-tools-3.1.1/py-smbus/Module.mk.orig	2014-02-20 09:37:15.711233000 +0100
+++ i2c-tools-3.1.1/py-smbus/Module.mk	2014-02-27 21:50:56.450488260 +0100
@@ -22,7 +22,7 @@
 	rm -rf py-smbus/build
 
 install-python:
-	$(DISTUTILS) install
+	$(DISTUTILS) install --optimize=2 --root=$(DESTDIR) --prefix=$(prefix)
 
 all: all-python