Anton (May 27 2026 at 14:00): Anton (May 27 2026 at 14:00):For macOS users building the new compiler from source, do not update to command line tools 26.4. You will get hit by these errors otherwise:
error: undefined symbol: __availability_version_check
note: referenced by /Users/username/.cache/zig/o/31d1903806c12a4e130eab7f3b5d7664/libcompiler_rt.a(libcompiler_rt_zcu.o):___isPlatformVersionAtLeast
error: undefined symbol: _abort
note: referenced by /Users/username/.cache/zig/tmp/369c8a0a1336f032/main_zcu.o:_posix.abort
error: undefined symbol: _bzero
...
This should no longer be an issue once we upgrade to zig 16
Last updated: Jun 16 2026 at 16:19 UTC