File macros.golang of Package go1.20

# Where to set GOPATH for builds. Like:
# export GOPATH=$(pwd)/_build:%{gopath}
%gopath          %{_datadir}/gocode

# for use like:
# ExclusiveArch:  %{go_arches}
%go_arches       %{ix86} x86_64 %{arm} aarch64 ppc64le