From 5a9c9d71013f82152e8960e404b318e01e601ba3 Mon Sep 17 00:00:00 2001
From: R W H Bricheno <Rob@dhcp-10-240-115-58.cp.wireless.private.cam.ac.uk>
Date: Mon, 30 Oct 2017 10:36:40 +0000
Subject: [PATCH] Fix getting the directory path on Mac OS X.

---
 tests/build_docker_image.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/build_docker_image.py b/tests/build_docker_image.py
index 0a020629..c64c985a 100755
--- a/tests/build_docker_image.py
+++ b/tests/build_docker_image.py
@@ -49,7 +49,7 @@ def sh(s, *args):
     return shlex.split(s)
 
 
-mydir = os.path.dirname(__file__)
+mydir = os.path.abspath(os.path.dirname(__file__))
 with tempfile.NamedTemporaryFile(dir=mydir) as dockerfile_fp:
     dockerfile_fp.write(DOCKERFILE)
     dockerfile_fp.flush()