BinaryRyan opened a new issue, #2522:
URL: https://github.com/apache/brpc/issues/2522
**Describe the bug (描述bug)**
在我编译成功protobuf之后、我尝试编译brpc，但是一直报告我的编译器不支持C++14，在我编译protobuf时并没有这个错误，我实在不知道这个201103L他是从哪里拿到的。
```cmake
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_COMPILER /usr/bin/g++)
......
include(googletest)
include(benchmark)
include(leveldb)
include(gflags)
include(jsoncpp)
include(abseil)
include(protobuf)
if(UNIX OR APPLE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -Wall -std=c++17")
endif()
message(STATUS "CMAKE_CXX_FLAGS:${CMAKE_CXX_FLAGS}")
include(brpc)
````
```cmake
set(FETCHCONTENT_BASE_DIR ${CMAKE_BINARY_DIR}/third-party)
FetchContent_Declare(
brpc
URL ${BRPC_URL}
)
FetchContent_GetProperties(brpc)
if(NOT brpc_POPULATED)
FetchContent_Populate(
brpc
)
endif()
ExternalProject_Add(
brpc_ext
SOURCE_DIR "${CMAKE_BINARY_DIR}/third-party/brpc-src"
BINARY_DIR "${CMAKE_BINARY_DIR}/third-party/brpc-build"
CMAKE_ARGS ${COMMON_FLAGS_CMAKE}
# Wrap download, configure and build steps in a script to log output
LOG_DOWNLOAD ON
LOG_CONFIGURE ON
LOG_BUILD ON
TEST_COMMAND ""
)
ExternalProject_Get_Property(brpc_ext source_dir binary_dir)
```
**To Reproduce (复现方法)**
**Expected behavior (期望行为)**
正常编译
**Versions (各种版本)**
OS: macos m1
Compiler: clangd++
brpc: 1.7
protobuf: 24.4
**Additional context/screenshots (更多上下文/截图)**
<img width="883" alt="image"
src="https://github.com/apache/brpc/assets/153162956/8d2f1ae2-585b-4873-8a31-c7b2b3b14216";>
<img width="898" alt="image"
src="https://github.com/apache/brpc/assets/153162956/17fe56cf-bf69-40a4-8da0-0be2f239cd4a";>
<img width="311" alt="image"
src="https://github.com/apache/brpc/assets/153162956/69785718-5804-43e1-b4f0-d04de48bbe1c";>
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