A simple Go Cross-compile helper.
git clone git://github.com/c9s/go-cross
Then run go-cross-install to build your cross-compile toolchain.
To build toolchain for all platforms and archs, simply run
bin/go-cross-install darwin/386
To build toolchain for specific platform and arch:
bin/go-cross-install darwin/386
Add the following lines to your ~/.zshrc or ~/.bashrc file:
$$HOME/.go/go-cross.sh