protocol-buffers – mosh：dyld：未加载库：/usr/local/lib/libprotobuf.7.dylib

我真的很喜欢mosh( http://mosh.mit.edu/),但经过brew升级后它停止工作,产生以下错误.

> mosh example.com
dyld: Library not loaded: /usr/local/lib/libprotobuf.7.dylib
  Referenced from: /usr/local/bin/mosh-client
  Reason: image not found
Died at /usr/local/bin/mosh line 201.

经过一番挖掘,我意识到这是因为protobuf已经升级,并且mosh被硬编码以使用protobuf 2.4.1.

所以我所要做的就是从protobuf 2.5.0恢复到2.4.1.在使用自制软件的Mac上,可通过以下步骤完成：

> brew versions protobuf
2.5.0    git checkout 019364d /usr/local/Library/Formula/protobuf.rb
2.4.1    git checkout 544209f /usr/local/Library/Formula/protobuf.rb
> git checkout 544209f /usr/local/Library/Formula/protobuf.rb
> brew unlink protobuf
> brew link protobuf