CocoaPods/Specs — pull request #3541 by Clstroud (2013-08-13 17:03:34+00:00)
Title: Fixed an issue with source extensions

This issue was forcing the pod library to only include the header
files, leaving the symbols unfound.

As best I can tell, this should resolve the issue. At this time I don't believe there are any similar issues in the other two specs I submitted yesterday.