- drop USE=doc: it installs only trivial documentation which can already
be controlled by FEATURE=nodoc
- remove licenses from DOCS
- make dependency upon sys-libs/libseccomp optional
- drop dependency upon dev-build/bmake
- move x11-drivers/nvidia-drivers to RDEPEND
- make ebuild respect user's flags/CC/etc
Closes: https://bugs.gentoo.org/785154
Closes: https://bugs.gentoo.org/785970
Closes: https://bugs.gentoo.org/927989
Signed-off-by: Alexander Golubev <fatzer2@gmail.com>
