cmake: 
-- The C compiler identification is GNU 7.3.0
-- The CXX compiler identification is GNU 7.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libOpenGL.so   
-- Found GLUT: /usr/lib/x86_64-linux-gnu/libglut.so  
-- Configuring done
CMake Error at CMakeLists.txt:19 (add_executable):
  Cannot find source file:

    windows.h

  Tried extensions .c .C .c++ .cc .cpp .cxx .m .M .mm .h .hh .h++ .hm .hpp
  .hxx .in .txx


CMake Error: CMake can not determine linker language for target: p3_part1
CMake Error: Cannot determine link language for target "p3_part1".
-- Generating done
-- Build files have been written to: /out

make: 
Scanning dependencies of target p3_part1
make[2]: *** No rule to make target 'CMakeFiles/p3_part1.dir/build'.  Stop.
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/p3_part1.dir/all' failed
make[1]: *** [CMakeFiles/p3_part1.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2