=> Bootstrap dependency digest>=20010302: found digest-20121220
===> Building for go-1.2.1
cd /usr/pkgsrc/work/lang/go/work/go/src && env GOROOT_FINAL=/usr/pkg/go /usr/pkg/bin/bash ./make.bash
# Building C bootstrap tool.
cmd/dist
go tool dist: unknown operating system
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/lang/go
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/lang/go