XCode 7.1 - Include of non-modular header inside framework

I have a project that was building fine that suddenly stopped building in xcode 7.1

The project has a development pod and also includes the GPUImage pod. The development pod used to be able to reference GPUImage via:

#import <GPUImage/GPUImage.h>

But that now gives a compile error of "Include of non-modular header inside framework module"

I've tried setting the flag:

CLANG_ALLOW_NON_MODULAR_INCLUDES_IN_FRAMEWORK_MODULES = 'YES'

but that makes no difference.

I tried to import GPUImage via:

@import GPUImage;

but that won't compile. Is this a know issue ?

Provide feedback