rpath linking to cuda toolkit about cuda

[tmcdonell]

Hmm, good point. Initially I added this to avoid other linking problems, but perhaps we should make do without it. I think it's in Setup.hs where we add the option to add the RPATH directly to the located CUDA toolkit.

[yobson]

It is. I've patched it out and everything builds fine as far as this package is concerned.
For some reason, that alone doesn't fix the RPATH issue when building with other packages, but I need to investigate this further. I'm not that familiar with ghc's linking approach when it comes to consuming libraries but what I think is going on is that this library requires access to the cuda-sdk in order to build, and so GHC adds the RPATH when linking against another library. I'm not 100% sure though. It could be an openSUSE packaging quirk.