arphaman added a comment.
I don't think the new warning is ideal, e.g.:
#import <Cocoa/Cocoa.h>
__attribute__((visibility("default")))
__attribute__((availability(macosx,introduced=10_10)))
@interface Test : NSObject
@end
Test *testVar;
E.g.:
test.m:13:1: warning: 'Test' is partial: introduced in macOS 10.10
[-Wunguarded-availability]
Test *testVar;
^
test.m:6:12: note: 'Test' has been explicitly marked partial here
@interface Test : NSObject
^
test.m:13:7: note: annotate 'Test' with an availability attribute to silence
Test *testVar;
^
We are telling the user to annotate the class 'Test' with an availability
attribute, but that class is already annotated with the attribute in the
framework!
We should either refer to the `testVar` declaration, or say something like
`annotate the declaration that uses 'Test' .....`.
https://reviews.llvm.org/D33816
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