Error LNK2019 compiling OpenCL Project on Windows - c++

Question

I'm getting a lot of erros LNK2019, after I use the nmake command on VS2015 console:
kmeans.cpp.obj : error LNK2019: unresolved external symbol clGetPlatformIDs > referenced in function "int __cdecl initialize(int)" (?initialize##YAHH#Z) kmeans.cpp.obj : error LNK2019: unresolved external symbol clCreateContextFromType referenced in function "int __cdecl initialize(int)" (?initialize##YAHH#Z) kmeans.cpp.obj : error LNK2019: unresolved external symbol clReleaseContext referenced in function "int __cdecl shutdown(void)" (?shutdown##YAHXZ) kmeans.cpp.obj : error LNK2019: unresolved external symbol clGetContextInfo referenced in function "int __cdecl initialize(int)" (?initialize##YAHH#Z) kmeans.cpp.obj : error LNK2019: unresolved external symbol clCreateCommandQueue referenced in function "int __cdecl initialize(int)" (?initialize##YAHH#Z) kmeans.cpp.obj : error LNK2019: unresolved external symbol clReleaseCommandQueue referenced in function "int __cdecl shutdown(void)" (?shutdown##YAHXZ)
My PC Specs and OS:
Windows 10 x64
Core i7 4790k
GTX 1080.
NVidia CUDA SDK Installed.
Does anybody know how to fix it, or faced the same problem? Already tried the #pragma with OpenCL Lib but that didnt work.
Already tried to change application type from Windows to console on VS, but that didn't work too.
My CMakeLists.txt is:
cmake_minimum_required( VERSION 2.6 )
project( kmeans )
find_package( OpenCL REQUIRED )
include_directories(${OpenCL_INCLUDE_DIRS})
add_executable( kmeans kmeans.cpp )
target_link_libraries( kmeans ${OPENCL_LIBRARIES} )
Link of the code repository that I'm using:
https://github.com/davidebaltieri31/OpenCL_kMeans
My exact steps:
Open VS2015 console.
Type "cmake . -G "NMake Makefiles""
Type nmake.
Then I get the LNK2019 Erros (Full screenshot here: http://puu.sh/uNOWQ/66e8d134a1.png).