New here, so bear with me if this isn't in this forum's proper etiquette.
I wanted this package as well, so I went ahead and made it. I'm normally a Redhat guy so I'm new to the packaging format that Slack and/or Vector uses so I'm sure there's things I could have done better here. Anyway I've made the packages available for wget'ing off my site:http://v2gnu.com/feh.tar.bz2
This contains 2 files (which are also downloadable separately):http://v2gnu.com/giblib-1.2.4-i586-1vl58.tlzhttp://v2gnu.com/feh-1.3.4-i586-1vl58.tlz
giblib needs to be installed first, since feh depends on the libraries that it contains. Then just install feh and it should work - I did test it via a VM install.