old_contents: from _external import *
  from gl import *
  from glu import *
  
  freeglut = LibWithHeaderChecker(
  		'freeglut',
  		['GL/freeglut.h'],
  		'c',
  		dependencies=[gl,glu]
  	)
  
  
new_contents: from _external import *
  from gl import *
  from glu import *
  
  freeglut = LibWithHeaderChecker(
  		'glut',
  		['GL/freeglut.h'],
  		'c',
  		dependencies=[gl,glu]
  	)
  
  
subject: change default freeglut library name to glut