在 OSX 中安装 uwsgi 失败

在 OSX 中 pip install uwsgi 的时候，出现以下错误

 ld: file not found: /usr/lib/system/libsystem_symptoms.dylib for architecture x86_64
    clang: error: linker command failed with exit code 1 (use -v to see invocation)
    *** error linking uWSGI ***

解决方法：

brew unlink libxml2
brew uninstall libxml2
brew install --with-python libxml2
brew link libxml2 --force
pip install uwsgi

reference: https://github.com/unbit/uwsgi/issues/1364