gcc-go is broken on arm (23bit). It loops while building the go compiler. Bootstrapping using official go 1.6 binary distribution for ARM works for me. There is some OBS quirk that prevents bootstrapping same version of go with itself due to package conflicts. go 1.7+ can be bootstrapped with the official package trivially by changing the build dependencies. This does not work for s390x because the s390x binaries are available since 1.8 or so.