https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63651
--- Comment #20 from Eric Gallager <egallager at gcc dot gnu.org> --- (In reply to Dominique d'Humieres from comment #18) > For the record with darwin15 I had to add > > /System/Library/Frameworks/Foundation.framework/Versions/C/Headers/ > NSEnumerator.h > /System/Library/Frameworks/Foundation.framework/Versions/C/Headers/NSObject.h > /System/Library/Frameworks/Foundation.framework/Versions/C/Headers/NSValue.h > > from the 10.9 SDK to > > /System/Library/Frameworks/Foundation.framework/Versions/C/Headers/NSArray.h > /System/Library/Frameworks/Foundation.framework/Versions/C/Headers/NSString.h > /usr/include/objc/NSObject.h that seems dangerous