objective c - header file in iOS 8 embedded frameworks -


i'm trying create embedded framework use ios8. after creating 1 called samplekit (btw; there convention here, should used prefix?), contains header file puzzling me:

//! project version number samplekit. foundation_export double samplekitversionnumber;  //! project version string samplekit. foundation_export const unsigned char samplekitversionstring[]; 

i know foundation_export macro extern or extern "c", i'm not sure 2 constants. supposed set value them?

project > build settings > versioning > current project version :

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