SDL_GetAppState() correction when toggling fullscreen on OSX. Patch by me to address this comment on the SDL mailing list: "There appears to be a serious bug with SDL_GetAppState on OS X (10.3.9). When first running in windowed mode and then switching to full screen mode by calling SDL_SetVideoMode, SDL_GetAppState returns 4 (SDL_APPACTIVE) instead of 7 (SDL_APPMOUSEFOCUS | SDL_APPINPUTFOCUS | SDL_APPACTIVE). However, the SDL application clearly does have the keyboard focus, since it is able to receive keyboard events." --ryan.

## Makefile.am for SDL using the MacOS X Quartz video driver

noinst_LTLIBRARIES = libvideo_quartz.la
libvideo_quartz_la_SOURCES = $(QUARTZ_SRCS)

# The SDL MacOS X Quartz video driver sources
QUARTZ_SRCS = 			\
	CGS.h			\
	SDL_QuartzEvents.m	\
	SDL_QuartzGL.m		\
	SDL_QuartzKeys.h	\
	SDL_QuartzVideo.h	\
	SDL_QuartzVideo.m	\
	SDL_QuartzWindow.h	\
	SDL_QuartzWindow.m	\
	SDL_QuartzWM.m		\
	SDL_QuartzYUV.m