Recent compiler_rt changes

[Adam <adam%netbsd.org@localhost>]

Greetings,

Something has got broken with the recent changes for compiler_rt (https://mail-index.netbsd.org/source-changes/2021/09/17/msg132320.html). Now my build fails with

x86_64--netbsd-install: /tmp/pkgsrc/destdir.amd64/usr/lib/clang/9.0.0/include/sanitizer/allocator_interface.h.inst.b01IaH: mkstemp: No such file or directory

I guess Clang version should be set to 13.0.0, but instead it's hard-coded as 9.0.0 in:
- external/bsd/compiler_rt/lib/clang/include/sanitizer/Makefile
- external/bsd/compiler_rt/lib/clang/include/xray/Makefile
- external/bsd/compiler_rt/lib/clang/share/Makefile

Any idea how to fix this?

Kind regards,
Adam