From 803bbe66743b6716398167c1ef7c23c9838fad35 Mon Sep 17 00:00:00 2001
From: Thomas Nagy <tnagy2pow10@gmail.com>
Date: Tue, 28 Oct 2014 20:59:36 +0100
Subject: [PATCH] Issue 1504 - Use absolute paths if relative path requires
 drive letters

---
 waflib/Node.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/waflib/Node.py b/waflib/Node.py
index 33a5833f..2239a3fe 100644
--- a/waflib/Node.py
+++ b/waflib/Node.py
@@ -391,8 +391,9 @@ class Node(object):
 			c1 = c1.parent
 			c2 = c2.parent
 
-		for i in range(up):
-			lst.append('..')
+		if c1.parent:
+			for i in range(up):
+				lst.append('..')
 		lst.reverse()
 		return os.sep.join(lst) or '.'