Removed outdated Atari support

include/SDL.h

@@ -38,8 +38,8 @@ and 2D framebuffer across multiple platforms.
 
 The current version supports Linux, Windows, Windows CE, BeOS, MacOS,
 Mac OS X, FreeBSD, NetBSD, OpenBSD, BSD/OS, Solaris, IRIX, and QNX.
-The code contains support for Atari, AIX, OSF/Tru64, RISC OS, and
-SymbianOS, but these are not officially supported.
+The code contains support for AIX, OSF/Tru64, RISC OS, and SymbianOS,
+but these are not officially supported.
 
 SDL is written in C, but works with C++ natively, and has bindings to
 several other languages, including Ada, C#, Eiffel, Erlang, Euphoria,

include/SDL_config.h.in

@@ -187,7 +187,6 @@
 #undef SDL_AUDIO_DRIVER_DSOUND
 #undef SDL_AUDIO_DRIVER_ESD
 #undef SDL_AUDIO_DRIVER_ESD_DYNAMIC
-#undef SDL_AUDIO_DRIVER_MINT
 #undef SDL_AUDIO_DRIVER_MMEAUDIO
 #undef SDL_AUDIO_DRIVER_NAS
 #undef SDL_AUDIO_DRIVER_NAS_DYNAMIC
@@ -209,7 +208,6 @@
 #undef SDL_JOYSTICK_DUMMY
 #undef SDL_JOYSTICK_IOKIT
 #undef SDL_JOYSTICK_LINUX
-#undef SDL_JOYSTICK_MINT
 #undef SDL_JOYSTICK_NDS
 #undef SDL_JOYSTICK_RISCOS
 #undef SDL_JOYSTICK_WINMM
@@ -241,7 +239,6 @@
 /* Enable various timer systems */
 #undef SDL_TIMER_BEOS
 #undef SDL_TIMER_DUMMY
-#undef SDL_TIMER_MINT
 #undef SDL_TIMER_NDS
 #undef SDL_TIMER_RISCOS
 #undef SDL_TIMER_UNIX
@@ -255,7 +252,6 @@
 #undef SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC
 #undef SDL_VIDEO_DRIVER_DUMMY
 #undef SDL_VIDEO_DRIVER_FBCON
-#undef SDL_VIDEO_DRIVER_GEM
 #undef SDL_VIDEO_DRIVER_NDS
 #undef SDL_VIDEO_DRIVER_PHOTON
 #undef SDL_VIDEO_DRIVER_QNXGF
@@ -277,7 +273,6 @@
 #undef SDL_VIDEO_DRIVER_X11_XINPUT
 #undef SDL_VIDEO_DRIVER_X11_SCRNSAVER
 #undef SDL_VIDEO_DRIVER_X11_XV
-#undef SDL_VIDEO_DRIVER_XBIOS
 
 #undef SDL_VIDEO_RENDER_D3D
 #undef SDL_VIDEO_RENDER_GDI