On Wed, 19 Apr 2023 10:38:19 GMT, Matthias Baesken <[email protected]> wrote:
> After the latest harfbuzz update, the AIX build is broken. The old clang > compiler from xlc16 does not compile harfbuzz correctly. > First issue in hb-algs.hh is that xlc16 clang still sets some GNUC-related > macros, so we do not run into the `__clang_major__ >= 8` check that should > prevent to try to compile `__builtin_mul_overflow` with ancient clang. > The other issue in `hb-subset.cc` is a bit tricky and has been observed as > well on macOS when very old clang versions were used. > > Probably we can get rid of those 2 workarounds in some months after switching > to xlc17 which includes a rather new clang version. As a rule, we don't make changes to 3rd party code principally for the reason that it needs to be re-changed every time we upgrade. After some off-line discussion with the devs working on the AIX port of OpenJDK, we can make an exception here, and they will take care of re-applying it if it is still needed next time round. And these changes only affect AIX of course .. ------------- Marked as reviewed by prr (Reviewer). PR Review: https://git.openjdk.org/jdk/pull/13529#pullrequestreview-1392502653
