https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111610
--- Comment #2 from Martin Jambor <jamborm at gcc dot gnu.org> --- (In reply to Iain Sandoe from comment #1) > As a matter of record, we do not really support cross-compilers targeting an > unknown Darwin version (the idea of xxx-apple-darwin [without a specific > version] was to support building natively on macOS). What will happen is > you will get the earliest supported OS version for the target arch (which > might not really be very representative) > > It would likely be more representative/useful to choose some suitable OS > version: > > e.g. powerpc-apple-darwin9 (latest) i686-apple-darwin17 (last 32b support) > x86_64-apple-darwin21 (up to date) .. and eventually aarch64-apple-darwin2x > .... > > Of course, the build should not fail so we must fix it - but just pointing > out that the results from the current builds are from a configuration that > will be issuing warnings about choice of OS version. IIUC, the test script takes all targets listed in contrib/config-list.mk and tries the above configuration and make all-host steps on all of those targets that are not explicitly excluded (currently only powerpc-freebsd13 because of PR 108491). I don't really know how (or if) the list in that file is maintained, but it looks like if they should be removed, they should be removed from there? Of course, we can exclude anything on our end too.
