[Pkg-golang-devel] Bug#779503: support gccgo, at least on architectures where golang is not available

[Matthias Klose]

Package: golang-go
Tags: stretch

gccgo in experimental (depending on gccgo-5) now provides the commands go-5 and
gofmt-5, and claims to be compatible with Go 1.4.

golang-go seems to ship gofmt directly, and handling go via alternatives.  Is
there a specific reason for that? Can we make that consistent? If handling via
alternatives, then I would suggest some priority change, in that golang maybe
uses a base priority of 100 + adding the Go version, and maybe GCC using a base
priority of 50 + adding the Go version. Would that work?

Also it would be nice to offer some support to use gccgo on architectures where
golang exists, so that things can be debugged on common architectures as well.