Finally!! Using corepure64 version 7b3 on kernel-4.2.9 am able to build the latest Nvidia graphics drivers v352.63 and have GLX, OpenGL and VDPAU features install correctly (having said that, have yet to find a means of testing CUDA and OpenCL).
While I'm stoked about the results, these drivers refused to build without a /lib64 -> /lib symlink.
Maybe I need to investigate the configure options again, but nothing stood out when I last investigated the requirement.
these drivers support Graphics cards GeForce 400 Series and newer according to
http://www.nvidia.com/download/driverResults.aspx/95159/en-usFor GLX and other components to install correctly in tc-7.x (x86 & x86_64) I needed /usr/lib/tls/libnvidia-tls.so.352.63 loaded, why Nvidia installer consistently attempts to load the wrong version (/usr/lib/libnvidia-tls.so.352.63) is beyond me and is the cause of great frustration (and dark blank screens on boot up).
Like it's x86 counterpart the complete x86_64 package is quite large despite this package is less the 32bit compat lib's. So will split out the CUDA and OpenCL libraries into a separate extension.
Would be great if there was a mechanism in tc to unpack Shared Object Libraries as they are loaded, because gzip reduces these Nvidia lib's by almost 50%
gtk3 versin of nvidia-setting GUI functions well in corepure64, thanks juanito
Still need to package earlier drivers supporting older graphics cards, but as of yet they were not co-operating..