ios - Parse Issues in NSObjCRuntime, NSZone, and NSObject

Question

I'm using AddThis to add sharing options in my iOS app.

I have imported the classes and added the -fno-objc-arc flag to all the imported classes since they don't use ARC.

However, when I try to run the app I get a slew of Parse Issues such as:

Expected identifier or '('
Unknown type name 'NSString'
Unknown type name 'Protocol'
...

These errors occur in NSObjCRuntime, NSZone, and NSObject. I have the requisite frameworks included as well. Any ideas?

Including this image if it helps:

Answer 1

I just changed the filename of Base64Transcoder.c to Base64Transcoder.m, and now the project compiles. I have no idea why this fixes the problem, but it works.