OpenSSH: add support for GSSAPI authentication
It looks like GSSAPI authentication isn't built into the openSSH client on alpine:
$ docker run -it --rm alpine / # apk add openssh-client ... OK: 10 MiB in 19 packages / # ssh -o GSSAPIAuthentication=yes command-line line 0: Unsupported option "gssapiauthentication"
Would it be at all possible to build it in? This is helpful for authenticating SSH with Kerberos.