From ec5f3d0cc80ae6e19a8dd795051ec680b6820b91 Mon Sep 17 00:00:00 2001
From: Kevin Ballard <kevin@sb.org>
Date: Mon, 27 Oct 2014 15:46:22 -0700
Subject: [PATCH] Don't require .git before running git-describe

When calculating the version, we don't need to test for the presence of
.git before running `git describe`. This lets us work properly in a
detached work tree if GIT_DIR is set.
---
 build_tools/git_version_gen.sh | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/build_tools/git_version_gen.sh b/build_tools/git_version_gen.sh
index 282ac27d3..ac3c26186 100755
--- a/build_tools/git_version_gen.sh
+++ b/build_tools/git_version_gen.sh
@@ -12,10 +12,7 @@ DEF_VER=unknown
 if test -f version
 then
 	VN=$(cat version) || VN="$DEF_VER"
-elif test -d .git -o -f .git && type git >/dev/null
-then
-	VN=$(git describe --always --dirty 2>/dev/null)
-else
+elif ! VN=$(git describe --always --dirty 2>/dev/null); then
 	VN="$DEF_VER"
 fi