From b0b0c5e0e9c100fb44970590bab532084caf0c07 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Fri, 31 Dec 2010 08:42:47 -0800
Subject: [PATCH] Don't overwrite SDL_revision.h with a bad revision if
 Mercurial isn't installed

---
 build-scripts/updaterev.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build-scripts/updaterev.sh b/build-scripts/updaterev.sh
index 1ee11e0c0..484fd4315 100755
--- a/build-scripts/updaterev.sh
+++ b/build-scripts/updaterev.sh
@@ -7,7 +7,7 @@ srcdir=..
 header=$srcdir/include/SDL_revision.h
 
 rev=`sh showrev.sh`
-if [ "$rev" != "" ]; then
+if [ "$rev" != "" -a "$rev" != "hg-0:baadf00d" ]; then
     echo "#define SDL_REVISION \"$rev\"" >$header.new
     if diff $header $header.new >/dev/null 2>&1; then
         rm $header.new