C'mon, while I'm relly not an expert, I am still an advanced user.
I did give it a try, right now, and what I saw is just what I had
expected: No, it can't run as root either.
It can't run as root either. And it flunked just like it flunked as
normal user, because in a grsecurity-hardened kernel based system, root
is not the boss like root used to be the boss in pre linux capabilities
system.
This application runs. The problem is your system. Cinelerra is not perfect, but
I have good experience with regard to this program and system development,
and I can say with good authority, the problem here is not cinelerra, it is the
environment. I have built many systems, from embedded to crays, hardware
and software... gentoo is a poor excuse for a system. If the hardened install
breaks applications, the problem is with the hardened install, not the application.
It is the job of the os to run the programs, not to fain running them, or fail a
normally operational program. Security at the cost of failure seems to be a
cost you are willing to bear.
The system install for gentoo on my machine is nearly complete. When it
works, I will see if I can tell what it is that is causing the immediate failures.
After reconnoitering the gentoo install, I have reached the conclusion that it
may be the only system I can not support. FreeBSD worked better, which
is saying something. If you would like to see a build design with similar
characteristics which has been known to work well, look at openwrt.
gentoo has terrible documentation, has no well defined install procedure,
does not provide a series of documented steps for system installation,
and is at best a hodge podge of loosely associated programs which are
mostly installed, not by design or intent but by latent dependency rules
which seem to occur mostly by chance. Your lucky if you get a working
system after several hours of hard work on a good machine. Lousy.