additionally trying to bind
/run/opengl-driver/etc/OpenCL/vendors -> /etc/OpenCL/vendors
/etc/OpenCL/vendors -> /etc/OpenCL/vendors (for non NixOS)
in wrapper to use opencl with houdini's own version of libOpenCL.so
Due to the nature of the software, it forks and expects children to
outlive the parent, therefore dieWithParent needs to be disabled
Also licensing mechanism seem to be checking processes for it's
licensing helper process running. that process must be same for multiple
instances of houdini itself, therefore Pid namespace has to be the same
for all of them.
sesinetd must be started manually for licensing to succeed.
Also add individual tools to the output. hkey requires libudev, and
something requires tbb.
