Ever since w64devkit began forcing bigobj by default, it has been
incompatible with cgo. I patched go to support bigobj, but unfortunately
upstream the patch ran in to bureaucracy/difficulties and I ran out of
patience to get it through. So that means it's not really an option to
use upstream go binaries, it must build from source. Bootstrapping go is
not difficult, but it has grown more tedious as more required stages
have been added to the bootstrap chain.
So, to spare myself some tedium, I have created
bootstrap-go-toolchain.sh. It builds the latest version of go, from
source, using only w64devkit's gcc compiler. It also adds my bigobj
patches to the toolchain, so cgo works properly.
