The script in this gist will help you buid the Google Protobuf library for use with Mac OS X and iOS. Other methods (such as homebrew or direct compilation) have issues that prevent their use. The libraries built by this script are universal and support all iOS device architectures including the simluator.
The easiest way to use this script is to simply clone the repo onto your machine using the following command:
$ git clone https://github.com/armaan-novus/Build-Protobuf-for-iOS.git
The script will automatically download the tarball from Google Code, so all you need to do is run the script. This will build the 3.17.3 version of Protobuf. The script understands a few command-line options too.
$ ./build-protobuf.sh
Add --interactive to the above script if you would like the script to stop
after each major operation. This makes it easier to inspect the output from
the various steps for potential errors.
Add --master if you would prefer to build from the master branch in the
Google Protobuf git repo.
Build results are found in a folder called protobuf This folder contains bin, include and lib folders.
Create a build rule in your Xcode project with the following settings.
Process *Source files with names matching:* `*.proto`
Using *Custom script:*
cd ${INPUT_FILE_DIR}
${SRCROOT}/Google/protobuf/bin/protoc --proto_path=${INPUT_FILE_DIR} ${INPUT_FILE_PATH} --cpp_out=${DERIVED_FILE_DIR}
Output Files
$(DERIVED_FILE_DIR)/$(INPUT_FILE_BASE).pb.cc
$(DERIVED_FILE_DIR)/$(INPUT_FILE_BASE).pb.h
Depending on where you choose to install the protobuf build, you will
need to adjust the path to protoc.