Celestia is a free real-time space simulation that lets you experience our
universe in three dimensions. Unlike most planetarium software, Celestia
doesn't confine you to the surface of the Earth. You can travel throughout
the solar system, to any of over 100,000 stars, or even beyond the galaxy.
All travel in Celestia is seamless; the exponential zoom feature lets you
explore space across a huge range of scales, from galaxy clusters down to
spacecraft only a few meters across. A "point-and-goto" interface makes it
simple to navigate through the universe to the object you want to visit.
Celestia is expandable. It comes with large catalog of stars, galaxies,
planets, moons, asteroids, comets, and spacecraft. If that's not enough,
you can download dozens of easy to install add-ons with more objects.
Convert celestia ports to stage
While here add a couple of patches obtain from the fedora project to fix
compilation with modern compilers and allows to build with lua 5.2
Switch lua to lua 5.2 version
Use desktop file provided by upstream instead of the version provided in
the ports (the upstream version is more complete)
Switch to USES=libtool
Now that overlinking is not happening anymore fix the glut version not
linking properly because it lacks an explicit link to libGL.