On Fri, Feb 27, 2015, at 02:17 PM, Jerry Krinock wrote:
> I’ve added a .mm Objective-C++ file to an old C++ project.  It has no
> code in it yet, except an empty Objecive-C @implementation.  Also, it
> #imports a counterpart .h file which in turn #imports <Cocoa/Cocoa.h>.
> 
> In Xcode 6.1, the compiler pukes on #import <Cocoa/Cocoa.h>, as though it
> does not know any Objective-C.  Testing the __OBJC__ macro, it is
> undefined.
> 
> The File Inspector indicates that my .mm file’s type is “Default -
> Objective-C++ Source” and the counterpart .h is  “Default - C Header”. 
> Looks OK to me.  Is there another Objective-C switch that needs to be
> flipped on somewhere?

What does the build log say for that file?

--Kyle Sluder

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