From 2d7514f61126e1eb8aef2e232a7a7b60a7697412 Mon Sep 17 00:00:00 2001
From: Roy Hyunjin Han <rhh@crosscompute.com>
Date: Fri, 15 Nov 2013 01:52:06 -0800
Subject: [PATCH] Ensure that we can get a commit number from git

Currently, git describe fails with "fatal: No names found, cannot describe anything."
---
 setup.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/setup.py b/setup.py
index 6ab478bfc2541..44229fa64d4cd 100755
--- a/setup.py
+++ b/setup.py
@@ -201,12 +201,12 @@ def build_extensions(self):
     try:
         import subprocess
         try:
-            pipe = subprocess.Popen(["git", "describe", "HEAD"],
+            pipe = subprocess.Popen(["git", "describe", "--always"],
                                     stdout=subprocess.PIPE).stdout
         except OSError:
             # msysgit compatibility
             pipe = subprocess.Popen(
-                ["git.cmd", "describe", "HEAD"],
+                ["git.cmd", "describe", "--always"],
                 stdout=subprocess.PIPE).stdout
         rev = pipe.read().strip()
         # makes distutils blow up on Python 2.7