No released version of GCC supports Apple M1 machines. You need to use the gcc-devel port for now, which provides developmental snapshot build with (experimental) support.
> On 21 Apr 2021, at 6:07 pm, Tom <mac...@t-online.de> wrote: > > Hi, > > gcc does not seem to support -arch arm64 > Can ti be build with arm64 support? > > Regards
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