text: Q:
  
  cmake finds package, but does not add to include path
  
  I am trying to compile (on FreeBSD, if that matters) a program that uses cmake. The CMakeLists.txt contains the lines
  find_package(GLUT REQUIRED)
  
  include_directories(${CMAKE_CURRENT_BINARY_DIR} ${OPENGL32_INCLUDE_DIRS} ${GLUT_INCLUDE_DIRS})
  
  and cmake does not report any errors, but when I run make afterwards, I get 
  […]
  /usr/bin/c++  -fopenmp -I/path/build -o CMakeFiles/scriptbots.dir/GLView.cpp.o -c /path/GLView.cpp
  […]
  In file included from /path/GLView.cpp:2:
  /path/GLView.cpp:10:21: error: GL/glut.h: No such file or directory
  […]
  
  GL/glut.h exists in /usr/local/include, which is not given as -I argument to /usr/bin/c++.
  Compiling works when I explicitly add -I/usr/local/include to CMakeFiles/scriptbots.dir/flags.make. What do I need to change to make the project compile without manually changing the flags file?
  
  A:
  
  As per its documentation, FindGLUT sets variable GLUT_INCLUDE_DIR, not GLUT_INCLUDE_DIRS. Change this in your CMakeList and it should work.
  
  