>From Go 1.5 onwards, an existing go compiler is needed to bootstrap the build (the runtime is now written in Go, rather than C) - the current "promise" is that the bootstrap will only use functionality from the Go 1.4 API.
So that we can continue to build natively, the attached is a lang/go-bootstrap that is effectively the Go 1.4.3 release - this is intended purely for building Go 1.5+ and is not meant for installing/distributing otherwise (and it is marked as such in the Makefile). In the not too distant future (time permitting) I'll likely patch this so that we can also build/release Go for openbsd/arm. Passes tests on i386 and amd64. ok?