[Rd] [PATCH] Makefile: add support for git svn clones

[Felipe Balbi]

git has an interface for cloning SVN repositories into git which
some users might decide to use. For those users' surprise, the
repository will always fail to build on svnonly target and it will
exit early.

The problem is simple enough to fix by just checking if a .git
directory exists in top_builddir and, if so, call git svn info insstead
of svn info.

Signed-off-by: Felipe Balbi <balbi at kernel.org>
---

Patch generated with git. Let me know if there are any formatting
changes you guys might want.

 Makefile.in | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Makefile.in b/Makefile.in
index 44b0a3b4b99f..221c437972ad 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -9,6 +9,9 @@ top_builddir = .
 
 include $(top_builddir)/Makeconf
 
+GIT := $(shell if [ -d "$(top_builddir)/.git" ]; then \
+	echo "git"; fi)
+
 distdir = $(PACKAGE)-$(VERSION)
 INSTFILES = COPYING
 NON_SVN_INSTFILES = SVN-REVISION
@@ -104,7 +107,7 @@ svnonly:
 	@if test ! -f "$(srcdir)/doc/FAQ" || test -f non-tarball ; then \
 	  (cd doc/manual && $(MAKE) front-matter html-non-svn) ; \
 	  touch non-tarball ; \
-	  (cd $(srcdir); LC_ALL=C TZ=GMT svn info || $(ECHO) "Revision: -99") 2> /dev/null \
+	  (cd $(srcdir); LC_ALL=C TZ=GMT $(GIT) svn info || $(ECHO) "Revision: -99") 2> /dev/null \
 	    | sed -n -e '/^Revision/p' -e '/^Last Changed Date/'p \
 	    | cut -d' ' -f1,2,3,4 > SVN-REVISION-tmp ; \
 	  if test "`cat SVN-REVISION-tmp`" = "Revision: -99"; then \
-- 
2.2.0