* Replace --disable/enable-gl with the individual EGL, GLES, GL switches
(--disable-gl turns off GL support entirely)
* Put the default opengl packageconfig into its own variable to make it
easier for distros and BSP layers to define what to use (GL, GLES,
or neither)
* Add libglu as a dependency for desktop GL
* Patch configure.ac to ensure libraries are only searched and linked to
if the corresponding API isn't disabled (this prevents cases where
libgstgl is linked to GLU even though desktop GL is dis- and GLES
enabled)
Signed-off-by: Carlos Rafael Giani <dv@pseudoterminal.org> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
