Support for zos/s390x

Hello, I'm a member of the Go on z/OS team at IBM. We're very interested in bringing this package to z/OS and would like to know what it would take to do so. From what I understand we need to get ccgo working first, but that also has dependencies that would need to be ported.

If there is anything that we can assist with or clarify (such as how you can get access to a z/OS system), please let us know!