diff --git "a/LLVM Parallel Universe Project/\345\217\202\344\270\216\350\264\241\347\214\256\346\214\207\345\257\274.md" "b/LLVM Parallel Universe Project/\345\217\202\344\270\216\350\264\241\347\214\256\346\214\207\345\257\274.md"
index e085fe8cf93d1bac7f3ec71a570133ba65a21b79..ac942704938fd3b3c554f2e78be32fe123f3d7a4 100644
--- "a/LLVM Parallel Universe Project/\345\217\202\344\270\216\350\264\241\347\214\256\346\214\207\345\257\274.md"	
+++ "b/LLVM Parallel Universe Project/\345\217\202\344\270\216\350\264\241\347\214\256\346\214\207\345\257\274.md"	
@@ -109,20 +109,7 @@ set(CMAKE_C_FLAGS "-fPIC -fstack-protector-all -D_FORTIFY_SOURCE=2 -O2 -Wall -fP
 ```
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC -fstack-protector-all -D_FORTIFY_SOURCE=2 -O2 -Wall -fPIE")
 ```
-判断编译器决定是否传参给CFLAGS:
-```
-# spec
-
-%cmake -DDEBUG=ON ../
-```
-修改为:
-```
-%if "%toolchain" == "clang"
-%global cmake_opts -DCMAKE_C_FLAGS="${CFLAGS}"
-%endif
-
-%cmake -DDEBUG=ON %{?cmake_opts} ../
-```
+修改后，若cmake没有加类似-DCMAKE_C_FLAGS="-Wall -Wextra"选项，则CMAKE_C_FLAGS默认引用CFLAGS。
 
 ### 4、LLVM平行宇宙项目commiters（持续增加中）
  - 赵 川峰[@cf-zhao](https://gitee.com/cf-zhao) 邮箱: zhaochuanfeng@huawei.com