title: Looking for a 'cmake clean' command to clear up CMake output
body: <p>Just as <code>make clean</code> deletes all the files that a makefile has produced, I would like to do the same with CMake. All too often I find myself manually going through directories removing files like <code>cmake_install.cmake</code> and <code>CMakeCache.txt</code>, and the <code>CMakeFiles</code> folders.</p>
  
  <p>Is there a command like <code>cmake clean</code> to remove all these files automatically? Ideally this should follow the recursive structure defined within the current directory's <code>CMakeLists.txt</code> file.</p>