xonotic is build against prebuilt binaries
Xonotic is build against prebuilt binaries in misc/builddeps.
For linux64 those are: libgmp libjpeg libode
I consider this to be issue for various reasons:
- most linux systems should come with libgmp and libjpeg already installed and ode package available
- those libraries seem to be updated last in 2013 (4 years ago)
- due to above, potential security problems
- no LICENSE information with binaries (those projects seem to mostly use permissive licenses, so it's allowed to distribute binaries, but with LICENSE file)