当我在apple M2 CPU上运行时（使用cmake版本3.23.0），我得到CMAKE_HOST_SYSTEM_PROCESSOR返回值x86_64（为什么不是arm 64）
系统信息和cmake版本如下：

╰─➤  uname -a
Darwin Kernel Version 22.6.0: Wed Jul  5 22:17:35 PDT 2023; root:xnu-8796.141.3~6/RELEASE_ARM64_T8112 arm64
╭─ ‹master*›
╰─➤  cmake --version                                                                                                      
cmake version 3.23.0
CMake suite maintained and supported by Kitware (kitware.com/cmake).

此外，编译和链接时，它会自动添加标志：“-arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDK/MacOSX13.3.sdk”
使VERBOSE=1打印日志如下：

/Library/Developer/CommandLineTools/usr/bin/c++  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX13.3.sdk -Wl,-search_paths_first -Wl,-headerpad_max_install_names -L/usr/local/opt/[email protected]/lib "CMakeFiles/arch-dependent.dir/arch-dependent.cpp.o" -o arch-dependent

这是一个测试程序：

╰─➤  cat ../CMakeLists.txt
project(test)

message("CMAKE_HOST_SYSTEM_PROCESSOR: ${CMAKE_HOST_SYSTEM_PROCESSOR}")

add_executable(test test.cpp)

╰─➤  cmake ..
CMAKE_HOST_SYSTEM_PROCESSOR: x86_64
-- Configuring done
-- Generating done
...

╰─➤  make VERBOSE=1
...
/Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/test.dir/build.make CMakeFiles/test.dir/build
[ 50%] Building CXX object CMakeFiles/test.dir/test.cpp.o
/Library/Developer/CommandLineTools/usr/bin/c++   -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX13.3.sdk -MD -MT CMakeFiles/test.dir/test.cpp.o -MF CMakeFiles/test.dir/test.cpp.o.d -o CMakeFiles/test.dir/test.cpp.o -c /home/arvin/test/test.cpp
[100%] Linking CXX executable test
/usr/local/Cellar/cmake/3.23.0/bin/cmake -E cmake_link_script CMakeFiles/test.dir/link.txt --verbose=1
/Library/Developer/CommandLineTools/usr/bin/c++  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX13.3.sdk -Wl,-search_paths_first -Wl,-headerpad_max_install_names -L/usr/local/opt/[email protected]/lib CMakeFiles/test.dir/test.cpp.o -o test
...

1.我可以用set(CMAKE_OSX_ARCHITECTURES arm64)把x86_64改成arm 64，但是我想知道问题出在哪里。
1.虽然我可以添加“-Wno-unused-command-line-argument”来屏蔽这些自动添加的标志，但我确实想从根目录中删除。
非常感谢