AFNetworking/AFNetworking — pull request #541 by tewha (2012-09-26 23:50:25+00:00)
Title: Add error when building without ARC

Test if ARC is on, and fail with an #error if not.

This is done in a source file, not a header, so it imposes no constraints on the calling code.

This may be worth adding to each source file, but I thought I'd start with a central one.