Building GCC on arm macOS

[Roman Bolshakov]

Hello,

stage1 of GCC build (master branch as of yesterday) fails with the error:

*** Configuration aarch64-apple-darwin20.3.0 not supported
make[2]: *** [configure-stage1-gcc] Error 1
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2

Is it expected issue? I had impression that GCC works on Apple Silicon
macs.

Thanks,
Roman