Control: reopen -1 Control: tags -1 patch
Actually, I can't find cl2.hpp in the listing of the package [1].[1] https://packages.debian.org/sid/all/opencl-headers/filelist
It's in the source package, but not the binary, because the line that would install it is commented out:
https://anonscm.debian.org/cgit/pkg-opencl/khronos-opencl-headers.git/tree/debian/opencl-headers.install