From 1bd91f8b05ce5fada2e247d659f324e8ee1ac732 Mon Sep 17 00:00:00 2001
From: Bernard Xiong <bernard.xiong@gmail.com>
Date: Tue, 5 May 2015 10:20:36 +0800
Subject: [PATCH] [libc] Add THREAD_SUPPORT and FILE_DESCRIPTOR in dlib.

---
 components/libc/dlib/SConscript | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/components/libc/dlib/SConscript b/components/libc/dlib/SConscript
index a6b7554a07..44be106e03 100644
--- a/components/libc/dlib/SConscript
+++ b/components/libc/dlib/SConscript
@@ -9,6 +9,10 @@ CPPPATH = [cwd]
 CPPDEFINES = ['RT_USING_DLIBC']
 
 if rtconfig.PLATFORM == 'iar':
+
+    if GetDepend('RT_USING_DFS'):
+        CPPDEFINES = CPPDEFINES + ['_DLIB_FILE_DESCRIPTOR', '_DLIB_THREAD_SUPPORT']
+
     group = DefineGroup('dlib', src, depend = ['RT_USING_LIBC'], 
         CPPPATH = CPPPATH, CPPDEFINES = CPPDEFINES)