On Sun, Feb 26, 2023 at 7:08 PM Bruno Haible <br...@clisp.org> wrote: > > Alexei Podtelezhnikov wrote: > > -# elif (__GNUC__ >= 7) || (__clang_major__ >= 10) > > +# elif ((__GNUC__ >= 7) \ > > + || (defined __apple_build_version__ \ > > + ? __apple_build_version__ >= 14000000 \ > > + : __clang_major__ >= 10)) > > > > Wiki suggests __apple_build_version__ >= 12000000 > > https://en.wikipedia.org/wiki/Xcode#Xcode_11.0_-_14.x_(since_SwiftUI_framework)_2 > > Interesting. Can you test it (by compiling Werner's test program from > <https://lists.gnu.org/archive/html/bug-gnulib/2023-02/msg00159.html> > on an Xcode version between 12.0 and 12.4)?
I wish I could directly test it. However, I could confirm that Swift release 5.3 (Xcode 12) was the first release with this line https://github.com/apple/llvm-project/blob/swift-5.3-RELEASE/clang/test/Sema/fallthrough-attr.c#L18
