From eac4e0c9a52d197f1313b12097a4d8065c513222 Mon Sep 17 00:00:00 2001
From: =?utf8?q?R=C3=A9mi=20Denis-Courmont?= <rdenis@simphalempin.com>
Date: Sat, 10 Jan 2009 18:13:33 +0200
Subject: [PATCH] Update the GIT revision properly

---
 src/Makefile.am | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/Makefile.am b/src/Makefile.am
index 85b1006cdf..78c73d9fb5 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -13,7 +13,7 @@ EXTRA_DIST = extras/COPYING modules/builtin.h.in \
 	libvlc.sym \
 	libvlccore.sym
 
-BUILT_SOURCES = modules/builtin.h misc/revision.c ../include/vlc_about.h
+BUILT_SOURCES = modules/builtin.h ../include/vlc_about.h
 CLEANFILES = $(BUILT_SOURCES)
 
 SUFFIXES = .pc.in .pc
@@ -468,13 +468,21 @@ SOURCES_libvlc_control = \
 # Stamp rules
 ###############################################################################
 
+misc/revision.c.tmp:
+	rm -f -- $@
+	echo "/* AUTOGENERATED FILE - DO NOT EDIT */" > $@
+	REVISION="$$(cd "$(top_srcdir)"; git describe 2>/dev/null || echo "$(VERSION)")"; \
+	echo "const char psz_vlc_changeset[] = \"$$REVISION\";" >> $@
+	diff $@ misc/revision.c >/dev/null 2>&1 || \
+		cat misc/revision.c.tmp > misc/revision.c
+
 misc/revision.c:
-	rm -f -- $@ $@.tmp
-	echo "/* AUTOGENERATED FILE - DO NOT EDIT */" > $@.tmp
-	REVISION="$$(cd "$(top_srcdir)"; git describe 2>/dev/null || echo exported)"; \
-	echo "const char psz_vlc_changeset[] = \"$$REVISION\";" >> $@.tmp
-	mv -f -- $@.tmp $@
+	$(MAKE) misc/revision.c.tmp
+	cat misc/revision.c.tmp > misc/revision.c
+
+BUILT_SOURCES += misc/revision.c.tmp misc/revision.c
 
+.PHONY: misc/revision.c.tmp
 
 ###############################################################################
 # Unit/regression test
-- 
2.39.2