more portable sed

I guess that non-gnu sed may require an extension to -i

1 files changed, 2 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 6b80f73..38cc49b 100644
--- a/Makefile
+++ b/Makefile
@@ -43,6 +43,7 @@ clean: etckeeper.spec
 	rm -rf build
 
 etckeeper.spec:
-	sed -i "s/Version:.*/Version: $$(perl -e '$$_=<>;print m/\((.*?)\)/'<debian/changelog)/" etckeeper.spec
+	sed -i~ "s/Version:.*/Version: $$(perl -e '$$_=<>;print m/\((.*?)\)/'<debian/changelog)/" etckeeper.spec
+	rm -f etckeeper.spec~
 
 .PHONY: etckeeper.spec