Installing Google Protocol Buffers on mac
This is not via brew, but the end result is the same.
- Download the protobuf-2.4.1 from https://github.com/protocolbuffers/protobuf/releases/tag/v2.4.1
- Extract the tar.gz file.
- $cd ~/Downloads/protobuf-2.4.1
- $./configure
- $make
- $make check
- $sudo make install
- $which protoc
- $protoc --version
Steps 4-7 are from the README.txt file from the protobuf tarball.
There are some issues with building protobuf 2.4.1 from source on a Mac. There is a patch that also has to be applied. All this is contained within the homebrew protobuf241 formula, so I would advise using it.
To install protocol buffer version 2.4.1 type the following into a terminal:
brew tap homebrew/versions
brew install protobuf241
If you already have a protocol buffer version that you tried to install from source, you can type the following into a terminal to have the source code overwritten by the homebrew version:
brew link --force --overwrite protobuf241
Check that you now have the correct version installed by typing:
protoc --version
It should display 2.4.1
It's a new year and there's a new mismatch between the version of protobuf in Homebrew and the cutting edge release. As of February 2016, brew install protobuf will give you version 2.6.1.
If you want the 3.0 beta release instead, you can install it with:
brew install --devel protobuf