Index: Makefile.pre.in
===================================================================
--- Makefile.pre.in	(revision 68578)
+++ Makefile.pre.in	(working copy)
@@ -996,11 +996,12 @@
 # Install the dynamically loadable modules
 # This goes into $(exec_prefix)
 sharedinstall:
+	INSTROOT=$(DESTDIR); test -z "$$INSTROOT" && INSTROOT=/; \
 	$(RUNSHARED) ./$(BUILDPYTHON) -E $(srcdir)/setup.py install \
 	   	--prefix=$(prefix) \
 		--install-scripts=$(BINDIR) \
 		--install-platlib=$(DESTSHARED) \
-		--root=/$(DESTDIR)
+		--root=$$INSTROOT
 
 # Here are a couple of targets for MacOSX again, to install a full
 # framework-based Python. frameworkinstall installs everything, the
@@ -1075,11 +1076,12 @@
 
 # This installs a few of the useful scripts in Tools/scripts
 scriptsinstall:
+	INSTROOT=$(DESTDIR); test -z "$$INSTROOT" && INSTROOT=/; \
 	SRCDIR=$(srcdir) $(RUNSHARED) \
 	./$(BUILDPYTHON) $(srcdir)/Tools/scripts/setup.py install \
 	--prefix=$(prefix) \
 	--install-scripts=$(BINDIR) \
-	--root=/$(DESTDIR)
+	--root=$$INSTROOT
 
 # Build the toplevel Makefile
 Makefile.pre: Makefile.pre.in config.status