Merge pull request #35 from ProPuke/master

fixed: TSDLWindow::GetWindowHandle always returned null

sdlvideo.mod/glue.c

@@ -20,6 +20,7 @@
     3. This notice may not be removed or altered from any source
     distribution.
 */
+#include "SDL_config.h"
 #include "SDL_video.h"
 #include "SDL_syswm.h"