[MacPorts] #61943: libsdl2 @2.0.14 +x11: Doesn't build against MacPorts' GL

[MacPorts]

#61943: libsdl2 @2.0.14 +x11: Doesn't build against MacPorts' GL
--------------------+---------------------
 Reporter:  larb0b  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.6.4
 Keywords:          |       Port:  libsdl2
--------------------+---------------------
 MacPorts' libsdl2 X11 variant doesn't work with only MacPorts X11
 installed. When trying to actually use it, you get:


 {{{
 Failed to create window: Failed loading /opt/X11/lib/libGL.1.dylib:
 dlopen(/opt/X11/lib/libGL.1.dylib, 10): image not found!
 }}}

 This is because that path is hardcoded within
 `src/video/x11/SDL_x11opengl.c` in libsdl2. This could be rectified by
 changing the path to MacPorts' `libGL.1.dylib` (installed by the `mesa`
 port). `mesa` should probably also be made a dependency when building the
 x11 variant of libsdl2.

-- 
Ticket URL: <https://trac.macports.org/ticket/61943>
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