Google Protobuf library (c++) as Cocoa Pod, easy to import to your project
Original Google Protobuf project site: https://code.google.com/p/protobuf/
Inspiration: http://www.kotancode.com/2012/10/14/using-google-protocol-buffers-in-objective-c-on-ios-and-the-mac/
It is just original Google Protocol Buffers 2.4.1 C++ code, without test classes.
Work on XCode5 for iOS7.
For iOS 6.1 you need to change config.h to include <tr1/unordered_map> instead of <unordered_map> and change namespace to
tr1::unordered_map. I could not find the way to check iOS version by some defines, so there should be some custom in a projekt.
If you need support for iOS 6.1 or earlier, create a pull request or let me know.