diff --git a/Config.mk b/Config.mk
index dbe1ad22fd..2575454c89 100644
--- a/Config.mk
+++ b/Config.mk
@@ -82,7 +82,7 @@ EXTRA_LIB += $(EXTRA_PREFIX)/lib
 endif
 
 PYTHON      ?= python
-PYTHON_PREFIX_ARG ?= --prefix="$(prefix)"
+PYTHON_PREFIX_ARG ?= --home="$(LIBEXEC)"
 # The above requires that prefix contains *no spaces*. This variable is here
 # to permit the user to set PYTHON_PREFIX_ARG to '' to workaround this bug:
 #  https://bugs.launchpad.net/ubuntu/+bug/362570
diff --git a/config/Paths.mk.in b/config/Paths.mk.in
index a603295146..263863d4d2 100644
--- a/config/Paths.mk.in
+++ b/config/Paths.mk.in
@@ -13,6 +13,7 @@
 # http://wiki.xen.org/wiki/Category:Host_Configuration#System_wide_xen_configuration
 
 PACKAGE_TARNAME          := @PACKAGE_TARNAME@
+PACKAGE_VERSION          := @PACKAGE_VERSION@
 prefix                   := @prefix@
 bindir                   := @bindir@
 sbindir                  := @sbindir@