用pip在MacOS12.5上安装cffi失败

Question

我试图在MacOS12.5上安装带有pip的"cffi“，但是我遇到了一个错误

python : 3.8.10

和平执行方案: 22.2.2

苹果clang版本13.1.6 (clang-1316.0.21.2.5)

指挥：

pip install cffi

错误

  /opt/homebrew/bin/gcc-11 -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/opt/homebrew/opt/libffi/include -DFFI_BUILDING=1 -DUSE__THREAD -DHAVE_SYNC_SYNCHRONIZE -I/opt/homebrew/Cellar/libffi/3.4.2/include -I/Users/faraz/.pyenv/versions/3.8.10/include/python3.8 -c c/_cffi_backend.c -o build/temp.macosx-12.5-arm64-3.8/c/_cffi_backend.o -iwithsysroot/usr/include/ffi
  gcc-11: error: unrecognized command-line option '-iwithsysroot/usr/include/ffi'
  error: command '/opt/homebrew/bin/gcc-11' failed with exit status 1

我也做了一些技巧，在下面的链接中提到，但它不适用于我。pip cffi package installation failed on osx

Answer 1

在阅读了cffi文档后，我发现，"/opt/homebrew/bin/gcc-11"是gcc，而不是clang，cffi在MacOS上没有明确支持gcc。因此，我在~/.bash_profile中添加了以下几行代码，并且工作正常。

# Set Clang as the default compiler for the system 
export CC=clang 
export CFLAGS=-Qunused-arguments 
export CPPFLAGS=-Qunused-arguments