Index: Makefile.in
--- Makefile.in.orig
+++ Makefile.in
@@ -1955,7 +1955,7 @@ all-local: .stamp-distutils-in-builddir config.py cups
 
 # Use distutils to install the module.
 install-exec-local: .stamp-distutils-in-builddir
-	$(PYTHON) setup.py install --prefix=$(DESTDIR)$(prefix)
+	$(PYTHON) setup.py install --root=$(DESTDIR) --single-version-externally-managed
 
 # Uninstall the module, crossing our fingers that we know enough
 # about how distutils works to do this.  Unfortunately, distutils
@@ -2029,7 +2029,7 @@ update-po: missing-languages
 	$(MAKE) -C po update-po
 
 missing-languages:
-	bash -c '\
+	sh -c '\
 	diff -u <(cat po/LINGUAS) \
 		<(cd po; ls -1 *.po | sed -e "s,\.po$$,,")'
 
@@ -2076,7 +2076,7 @@ help:
 	@echo " test-xmldriverprefs  Show preferred driver order for all models"
 
 test-xml-validity.sh:	FORCE
-	echo "#!/bin/bash" > "$@"
+	echo "#!/bin/sh" > "$@"
 	echo "set -e" >> "$@"
 	echo "xmllint --relaxng \\" >> "$@"
 	echo "    $(top_srcdir)/xml/preferreddrivers.rng \\" >> "$@"
@@ -2086,7 +2086,7 @@ test-xml-validity.sh:	FORCE
 	chmod 755 "$@"
 
 py.test.sh:	FORCE
-	echo "#!/bin/bash" > "$@"
+	echo "#!/bin/sh" > "$@"
 	echo "exec ${PYTEST-py.test}" >> "$@"
 	chmod 755 "$@"