You are compiling a C++ program. The target machine is your CPU, not your GPU. Judging by you other post, you are building a 32-bit program, but trying to link with 64-bit libraries.
The GPU code is compiled "on-the-fly" when the application calls API calls like "clBuildProgram". So you are compiling the C++ program for your CPU platform, not the GPU.
Thanks for your definitions !
SOLVED - case closed !