As a starting point for x11iraf I've unzipped the file:
x11iraf-v2.0BETA-src.tar.gz
which I grabbed from ftp://iraf.noao.edu/iraf/x11iraf
In my opinion this really should be part of the github.com/iraf respository set. But so far no progress has been made toward this so I'm starting my own repository that anyone who would like can contribute to.
I'm planning on a couple of branches for any udpdates, merge-all: will combine all of the updates porting: will be used for Raspberry Pi and other platforms defined as non-standard by IRAF.
This will be for non-commerical use and my goal is to not step on any license agreements.