slackbuilds_ponce/misc/viking
..
doinst.sh
README
slack-desc
viking.info
viking.SlackBuild

Viking is a free/open source program to manage GPS data. You can import
and plot tracks and waypoints, show Terraserver maps under it, add 
coordinate lines, make new tracks and waypoints, hide different things, 
etc. It is written in C with the GTK+ 2.

This requires gpsd.