diff --git a/bsp/ls1bdev/rtconfig.h b/bsp/ls1bdev/rtconfig.h
index b09f7b044c05ba061b441edf389bf33207498295..788c961d7d109df9e51fe057411449df885f3999 100644
--- a/bsp/ls1bdev/rtconfig.h
+++ b/bsp/ls1bdev/rtconfig.h
@@ -93,9 +93,11 @@
 #define FINSH_THREAD_STACK_SIZE	4096
 // </section>
 
+#define RT_USING_LIBC
+
 // <section name="LIBC" description="C Runtime library setting" default="always" >
 // <bool name="RT_USING_NEWLIB" description="Using newlib library, only available under GNU GCC" default="true" />
-// #define RT_USING_NEWLIB
+//#define RT_USING_NEWLIB
 // <bool name="RT_USING_PTHREADS" description="Using POSIX threads library" default="true" />
 // #define RT_USING_PTHREADS
 // </section>
diff --git a/bsp/ls1bdev/rtconfig.py b/bsp/ls1bdev/rtconfig.py
index 8373448a372993500738ee37b93564d4a2a13c7e..70077e64ce621df31182ee07d06de878d779e8b6 100644
--- a/bsp/ls1bdev/rtconfig.py
+++ b/bsp/ls1bdev/rtconfig.py
@@ -12,7 +12,7 @@ if os.getenv('RTT_CC'):
 
 if  CROSS_TOOL == 'gcc':
 	PLATFORM    = 'gcc'
-	EXEC_PATH   = 'C:/Program Files/CodeSourcery/Sourcery_CodeBench_Lite_for_MIPS_ELF/bin'
+	EXEC_PATH   = r'C:\Program Files\CodeSourcery\Sourcery G++ Lite For MIPS ELF\bin'
 else:
     print '================ERROR============================'
     print 'Not support %s yet!' % CROSS_TOOL