How to obtain the OpenCL import library:

1. Copy OpenCL.dll from c:\windows\SysWOW64 into directory
2. Start a VC++ x64 command prompt in this directory
3. Extract exports from the dll: dumpbin /EXPORTS OpenCL.dll > OpenCL.exports
4. Edit OpenCl.exports:
        * add EXPORTS to top line
        * remove any headers, footers, numbers in front of function names using column editor like UltraEdit                
        * when only the EXPORTS keyword and cl* function names remain, save the file as OpenCL.def
5. Call lib to get import library for VC++: lib /def:OpenCL.def /machine:x64 /out:OpenCL.lib

To install:

6. Copy headers and libraries into an LSB-like directory structure, i.e. create

   <install_dir>/include       
   <install_dir>/lib
   <install_dir>/lib/x86_64

   and copy the "include/CL" folders of the Khronos header repositories into 
   <install_dir>/include, and the OpenCL.lib into <install_dir>/lib/x86_64

7. Set OCL_ROOT to <install_dir> to make the CMAKE build file generator tool work