SDL_video.c: move os2 video before offscreen. as offscreen is enabled in CMakeLists.txt, we get a blanks window otherwise. From a patch by Silvan Scherrer, at Bitwiseworks' fork.
diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c
index f3a78e0..34fc4c1 100644
--- a/src/video/SDL_video.c
+++ b/src/video/SDL_video.c
@@ -127,16 +127,16 @@ static VideoBootStrap *bootstrap[] = {
#if SDL_VIDEO_DRIVER_QNX
&QNX_bootstrap,
#endif
+#if SDL_VIDEO_DRIVER_OS2
+ &OS2DIVE_bootstrap,
+ &OS2VMAN_bootstrap,
+#endif
#if SDL_VIDEO_DRIVER_OFFSCREEN
&OFFSCREEN_bootstrap,
#endif
#if SDL_VIDEO_DRIVER_NGAGE
&NGAGE_bootstrap,
#endif
-#if SDL_VIDEO_DRIVER_OS2
- &OS2DIVE_bootstrap,
- &OS2VMAN_bootstrap,
-#endif
#if SDL_VIDEO_DRIVER_DUMMY
&DUMMY_bootstrap,
#if SDL_INPUT_LINUXEV