Benjamin Hipple dd8d859829 opencl-clhpp: fix install directory ...

Previously, it was installing to `$out/include/include`. Now it's correct:

/nix/store/alw8idc8qhfhzw98banq2l5hmrdaglgm-opencl-clhpp-2.0.11
├── include
│   └── CL
│       ├── cl2.hpp
│       └── cl.hpp
└── nix-support
    └── propagated-build-inputs

3 directories, 3 files

2020-04-10 12:22:13 -07:00

..

default.nix

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