Rejigger patch generation magic for git.

Makefile

@@ -28,22 +28,19 @@ ifneq (,$(CURL))
 CURL += -k
 endif
 
-MONOTONE = mtn
-
 branch-portability = portable
 
-elfutils-base = t:elfutils-$(VERSION)
+elfutils-base = elfutils-$(VERSION)
+elfutils-base = master
 
-elfutils-%.patch: elfutils-$(VERSION).tar.gz Makefile
+elfutils-%.patch: elfutils-$(VERSION).tar.bz2 Makefile
 	@rm -rf elfutils-master elfutils-$*
-#	$(MONOTONE) checkout -b com.redhat.elfutils elfutils-master
-	$(MONOTONE) checkout -b com.redhat.elfutils \
-		    	     -r $(elfutils-base) elfutils-master
-	$(MONOTONE) checkout \
-		    -b com.redhat.elfutils.$(firstword $(branch-$*) $*) \
-		    elfutils-$*
-	cd elfutils-master; autoreconf -i; rm -rf autom4te.cache _MTN
-	cd elfutils-$*; autoreconf -i; rm -rf autom4te.cache _MTN
+	git archive --prefix=elfutils-master/ $(elfutils-base) \
+	| tar xf -
+	git archive --prefix=elfutils-$*/ $(firstword $(branch-$*) $*) \
+	| tar xf -
+	cd elfutils-master; autoreconf -i; rm -rf autom4te.cache
+	cd elfutils-$*; autoreconf -i; rm -rf autom4te.cache
 	diff -Nrpu elfutils-master elfutils-$* | \
 	filterdiff --remove-timestamps --strip=1 --addprefix=elfutils/ > $@.new
 	mv $@.new $@