AFNetworking/AFNetworking — pull request #182 by jparise (2012-01-20 02:04:11+00:00)
Title: Conditionally define the _af_nsjson_* labels.

These are only used when _AFNETWORKING_PREFER_NSJSONSERIALIZATION_ is
defined. Otherwise, they generate unused symbol warnings under strict
compilation settings.

I took at stab at what the "best" formatting style would be here, but obviously feel free to tweak that if you have something more elegant in mind.