From 8f7bbfa01147f9e0e98445da5cb958cede791a36 Mon Sep 17 00:00:00 2001
From: Meco Man <920369182@qq.com>
Date: Tue, 23 Feb 2021 11:27:12 +0800
Subject: [PATCH 1/2] remove RT_USING_NOLIBC

---
 bsp/efm32/rtconfig.h             | 1 -
 bsp/simulator/rtconfig_project.h | 3 ---
 bsp/taihu/rtconfig.h             | 1 -
 tools/building.py                | 3 ---
 4 files changed, 8 deletions(-)

diff --git a/bsp/efm32/rtconfig.h b/bsp/efm32/rtconfig.h
index 040f07fa02..58159f90b3 100644
--- a/bsp/efm32/rtconfig.h
+++ b/bsp/efm32/rtconfig.h
@@ -211,7 +211,6 @@
 #endif
 
 /* SECTION: Runtime library */
-// #define RT_USING_NOLIBC
 // #define RT_USING_NEWLIB
 #define RT_LIBC_USING_TIME
 
diff --git a/bsp/simulator/rtconfig_project.h b/bsp/simulator/rtconfig_project.h
index 02e29c1a65..2ff5c8d3a4 100644
--- a/bsp/simulator/rtconfig_project.h
+++ b/bsp/simulator/rtconfig_project.h
@@ -17,9 +17,6 @@
 #pragma warning(disable:4267)   /* to ignore: warning C4267: conversion from 'size_t' to 'rt_size_t', possible loss of data */
 #pragma warning(disable:4244)   /* to ignore: warning C4244: '=' : conversion from '__w64 int' to 'rt_size_t', possible loss of data */
 
-#elif defined(__GNUC__)
-#define RT_USING_NOLIBC
-
 #endif /* end of _MSC_VER */
 
 #endif
diff --git a/bsp/taihu/rtconfig.h b/bsp/taihu/rtconfig.h
index 2437f6b2a3..0ca8b43a19 100644
--- a/bsp/taihu/rtconfig.h
+++ b/bsp/taihu/rtconfig.h
@@ -53,7 +53,6 @@
 /* Using Small MM*/
 #define RT_USING_SMALL_MEM
 
-// #define RT_USING_NOLIBC
 #define RT_TINY_SIZE
 
 /* SECTION: Device System */
diff --git a/tools/building.py b/tools/building.py
index 3cea6fc692..ba995af278 100644
--- a/tools/building.py
+++ b/tools/building.py
@@ -276,9 +276,6 @@ def PrepareBuilding(env, root_directory, has_libcpu=False, remove_components = [
         except KeyError:
             print ('Unknow target: '+ tgt_name+'. Avaible targets: ' +', '.join(tgt_dict.keys()))
             sys.exit(1)
-    elif (GetDepend('RT_USING_NEWLIB') == False and GetDepend('RT_USING_NOLIBC') == False) \
-        and rtconfig.PLATFORM == 'gcc':
-        AddDepend('RT_USING_MINILIBC')
 
     # auto change the 'RTT_EXEC_PATH' when 'rtconfig.EXEC_PATH' get failed
     if not os.path.exists(rtconfig.EXEC_PATH):

From bf7a3af6fd8e1012cc0e07ecfde059956c2f75c9 Mon Sep 17 00:00:00 2001
From: Meco Man <920369182@qq.com>
Date: Tue, 23 Feb 2021 11:28:25 +0800
Subject: [PATCH 2/2] update readme

---
 components/libc/compilers/common/readme.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/components/libc/compilers/common/readme.md b/components/libc/compilers/common/readme.md
index 99797d933c..81bb005d0a 100644
--- a/components/libc/compilers/common/readme.md
+++ b/components/libc/compilers/common/readme.md
@@ -1,8 +1,8 @@
 ## Attentions
 
-1. This folder is "common" for armlibc newlibc and dlib. It's not "common" for minilibc.
+1. This folder is "common" for armlibc newlibc and dlib.
 
-2. If you want to add new .c files, please do not forget to fix SConscript file too. eg:
+2. If you want to add new `.c` files, please do not forget to fix SConscript file too. eg:
 
 ```python
 if GetDepend('RT_USING_POSIX') == False: