The desktop item was referring to "$out/bin/xonotic" as executable, but
since it's built in its own derivation now, "$out" did not contain the
xonotic wrapper.
Since it seems to be common practise to use a relative path, I changed
it to do that here as well.
This has many advantages:
- Each variant can be installed without pulling in the dependencies of the
other variants, which makes it possible to build an SDL variant
without X11 dependencies
- Hydra can now build binaries without downloading 1GB of data, so users
do not have to build them on their own machines
- Users do not have to redownload 1GB of data after each dependency
update
Includes the following fixes:
- Add dependency on libGL for GLX variant as it will fail in some
environments otherwise
- Pass -j and -l to make to enable parallel building
- Quote homepage URI and use https
- Add a .desktop file and icons
* treewide: http -> https sources
This updates the source urls of all top-level packages from http to
https where possible.
* buildtorrent: fix url and tab -> spaces
The most complex problems were from dealing with switches reverted in
the meantime (gcc5, gmp6, ncurses6).
It's likely that darwin is (still) broken nontrivially.
