darwin-frameworks: add impure version of CoreFoundation

+3
+3
pkgs/os-specific/darwin/apple-sdk/frameworks.nix
··· 23 CalendarStore = []; 24 Cocoa = [ AppKit ]; 25 Collaboration = []; 26 CoreAudio = [ CF IOKit ]; 27 CoreAudioKit = [ AudioUnit ]; 28 CoreData = [];
··· 23 CalendarStore = []; 24 Cocoa = [ AppKit ]; 25 Collaboration = []; 26 + # Impure version of CoreFoundation, this should not be used unless another 27 + # framework includes headers that are not available in the pure version. 28 + CoreFoundation = []; 29 CoreAudio = [ CF IOKit ]; 30 CoreAudioKit = [ AudioUnit ]; 31 CoreData = [];