• http://feh.finalrewind.org/
• http://linuxbrit.co.uk/feh/
• #feh on irc.oftc.net

• Imlib2
• libpng
• libX11

• libcurl
• libXinerama
• json-c

• jpegtran (supplied by the jpeg library, for lossless image rotation)
• convert (supplied by ImageMagick, can be used to load unsupported formats)

Open cloned/downloaded feh project folder

$ cmake .
$ make
$ sudo make install-all

ZSH Completion for feh is available here.

Make file can be configured in config.cmake file before building/installing, if it's changed later, feh has to be rebuilt.