title: CMake cannot find freeglut on windows in Clion
body: <p>I've been stuck for a while now and I can't figure out how to get freeglut working. I thought I knew what it was asking me to do, so I added that set(prefix_path) line but it didn't do anything. Am I supposed to write my own freeglut-config.cmake or what?</p>
  
  <p>Note: I am using the freeglut for MinGW package from this <a href="http://www.transmissionzero.co.uk/software/freeglut-devel/" rel="nofollow noreferrer">website</a></p>
  
  <p>CMake File:</p>
  
  <pre><code>cmake_minimum_required(VERSION 3.7)
  project(HW1)
  set(CMAKE_CXX_STANDARD 11)
  set(SOURCE_FILES Triangle.cpp)
  set(CMAKE_PREFIX_PATH "C:/freeglut")
  
  find_package(GLEW REQUIRED STATIC)
  find_package(FREEGLUT REQUIRED)
  find_package(OPENGL REQUIRED)
  
  include_directories(${FREEGLUT_INCLUDE_DIRS} ${GLEW_INCLUDE_DIRS} ${OPENGL_INCLUDE_DIRS})
  link_directories(${FREEGLUT_LIBRARY_DIRS} ${GLEW_LIBRARY_DIRS} ${OPENGL_LIBRARY_DIRS})
  add_definitions(${FREEGLUT_DEFINITIONS} ${GLEW_DEFINITIONS} ${OPENGL_DEFINITIONS})
  
  add_executable(HW1 ${SOURCE_FILES})
  target_link_libraries(HW1 ${FREEGLUT_LIBRARIES} ${GLEW_LIBRARIES} ${OPENGL_LIBRARIES})
  </code></pre>
  
  <p>Full error:</p>
  
  <pre><code>CMake Error at CMakeLists.txt:8 (find_package):
    By not providing "FindFREEGLUT.cmake" in CMAKE_MODULE_PATH this project has
    asked CMake to find a package configuration file provided by "FREEGLUT",
    but CMake did not find one.
  
    Could not find a package configuration file provided by "FREEGLUT" with any
    of the following names:
  
      FREEGLUTConfig.cmake
      freeglut-config.cmake
  
    Add the installation prefix of "FREEGLUT" to CMAKE_PREFIX_PATH or set
    "FREEGLUT_DIR" to a directory containing one of the above files.  If
    "FREEGLUT" provides a separate development package or SDK, be sure it has
    been installed.
  </code></pre>