Brian Fisher fixed bug #513 If an app requests a 24-bit opengl mode on a machine with a 32-bit desktop with the windib video backend, then when exiting fullscreen the desktop resolution is not restored The reason this is, is because the windib backend restores the desktop resolution when exiting fullscreen in DIB_SetVideoMode when it finds that the last request was for fullscreen by checking the original flags on the video surface. However, if the bits per pixel requested is different than current surface, the video surface is recreated and the original video flags are lost. So the check to see if we were exiting fullscreen fails. below is a patch to SDL_dibvideo.c that solves the problem by using the original flags in all cases. thanks!

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Using the Simple DirectMedia Layer with S60 3.x / Symbian 9.x
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These instuctions are for people developing for S60 3.x. S60 3.x
uses Symbian OS so you need S60 SDK.

extract "symbian.zip" into this folder.

go to symbian folder

bldmake bldfiles
abld build

That produces WINSCW and ARMV5 versions of sdl.dll runtime library 
and sdl.lib for development. 
The sdlexe.dll/sdlexe.lib and sdlmain.lib are for easy SDL S60
integration, please see http://www.mbnet.fi/~mertama/sdl.html
for further info.