kivy/kivy — pull request #1899 by thopiekar (2014-02-17 21:29:15+00:00)
Title: Adding enforcement of the wanted graphics system GL/GLES

Will force to use OpenGL, when setting
GRAPHICS=GL
or OpenGL|ES on
GRAPHICS=GLES

Could be used later to create seperate packages for OpenGL and OpenGL|ES backend. So the user will be able to choose the desired method.