AFNetworking/AFNetworking — pull request #423 by tewha (2012-07-23 18:32:23+00:00)
Title: Fix a warning when building AFNetowrking iOS Example

Fixes a warning when building AFNetowrking iOS Example.

A method is declared in an interface, then only implemented on Mac OS X. The method does not need to be implemented on iOS, so I've wrapped the @interface in `#if __MAC_OS_X_VERSION_MIN_REQUIRED`.

It is probably possible to drop the @interface entirely, as the use of `sharedProfileImageRequestOperationQueue` occurs *after* its implementation, but I'm not familiar enough with how older versions of Xcode to guarantee that and am unable to test it.