Merge branch 'jc/drop-git-spec-in'

As nobody maintains our in-tree git.spec.in and distros use their
own spec file, we stopped pretending that we support "make rpm".

* jc/drop-git-spec-in:
  Makefile: remove dependency on git.spec
  Makefile: stop pretending to support rpmbuild

Author: gitster

Makefile

@@ -440,7 +440,6 @@ DIFF = diff
 TAR = tar
 FIND = find
 INSTALL = install
-RPMBUILD = rpmbuild
 TCL_PATH = tclsh
 TCLTK_PATH = wish
 XGETTEXT = xgettext
@@ -2390,31 +2389,25 @@ quick-install-html:
 
 ### Maintainer's dist rules
 
-git.spec: git.spec.in GIT-VERSION-FILE
-	sed -e 's/@@VERSION@@/$(GIT_VERSION)/g' < $< > $@+
-	mv $@+ $@
-
 GIT_TARNAME = git-$(GIT_VERSION)
-dist: git.spec git-archive$(X) configure
+dist: git-archive$(X) configure
 	./git-archive --format=tar \
 		--prefix=$(GIT_TARNAME)/ HEAD^{tree} > $(GIT_TARNAME).tar
 	@mkdir -p $(GIT_TARNAME)
-	@cp git.spec configure $(GIT_TARNAME)
+	@cp configure $(GIT_TARNAME)
 	@echo $(GIT_VERSION) > $(GIT_TARNAME)/version
 	@$(MAKE) -C git-gui TARDIR=../$(GIT_TARNAME)/git-gui dist-version
 	$(TAR) rf $(GIT_TARNAME).tar \
-		$(GIT_TARNAME)/git.spec \
 		$(GIT_TARNAME)/configure \
 		$(GIT_TARNAME)/version \
 		$(GIT_TARNAME)/git-gui/version
 	@$(RM) -r $(GIT_TARNAME)
 	gzip -f -9 $(GIT_TARNAME).tar
 
-rpm: dist
-	$(RPMBUILD) \
-		--define "_source_filedigest_algorithm md5" \
-		--define "_binary_filedigest_algorithm md5" \
-		-ta $(GIT_TARNAME).tar.gz
+rpm::
+	@echo >&2 "Use distro packaged sources to run rpmbuild"
+	@false
+.PHONY: rpm
 
 htmldocs = git-htmldocs-$(GIT_VERSION)
 manpages = git-manpages-$(GIT_VERSION)