From adfb73cd8c26b361372e39f9a10fba73e9959dec Mon Sep 17 00:00:00 2001
From: bernard <bernard.xiong@rt-thread.com>
Date: Sat, 25 Nov 2017 07:37:07 +0800
Subject: [PATCH] [Tools] Fix the abspath issue of Rtt_Root in building.py.

---
 tools/building.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/building.py b/tools/building.py
index d4f6b42129..624245c202 100644
--- a/tools/building.py
+++ b/tools/building.py
@@ -123,7 +123,7 @@ def PrepareBuilding(env, root_directory, has_libcpu=False, remove_components = [
     global Rtt_Root
 
     Env = env
-    Rtt_Root = root_directory
+    Rtt_Root = os.path.abspath(root_directory)
 
     # add compability with Keil MDK 4.6 which changes the directory of armcc.exe
     if rtconfig.PLATFORM == 'armcc':