Turn off nullability warnings for macOS SDK #7827
Merged
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Resolves #7759
The issue describes many warnings being raised when verbosely building Pillow on macOS. They are mostly warnings of "pointer is missing a nullability type specifier"
Investigating, I found https://gist.github.com/software-mariodiana/de55a56935730b08d7a5a2a05c44dcd3 stating "These warning are added so that Objective-C code will be compatible with Swift"
https://stackoverflow.com/questions/32539285/pointer-is-missing-a-nullability-type-specifier pointed me to https://developer.apple.com/swift/blog/?id=25 for some more detail about this compatibility.
So given that it is something that is acknowledged, the solution is just to turn off the warnings, with
-Wno-nullability-completeness
.