I didn't even know that the latest version of Emacs compiled on the Hurd...
It does! The usual build instructions work fine as long as you have the dependencies. For gccemacs I recommend the "build from source" instructions at https://www.emacswiki.org/emacs/GccEmacs#toc2 > > I wish I could be more helpful...How is geeEmacs? > > A little underwhelming to be honest. I thought the speed-up would be more noticeable. I'm trying to track down the implementation of the function that actually sets the st_uid field. But it appears to be buried under several indirections and possibly a mig interface. I got lost trying to find it.