Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe if SDL is built with a non-cdecl calling convention, and it's just generally bad practice anyhow. Now programs explicitly call SDL_Quit() where appropriate, wrap SDL_Quit() in a cdecl function where it can't be avoided, and rely on the parachute where a crash might have hit the atexit() before (these ARE test programs, after all!).

Makefile.in
Makefile
configure
config.cache
config.log
config.status
autom4te*
aclocal.m4
checkkeys
graywin
loopwave
testalpha
testbitmap
testcdrom
testcpuinfo
testerror
testgamma
testgl
testhread
testjoystick
testkeys
testlock
testoverlay
testoverlay2
testpalette
testsem
testsprite
testtimer
testtypes
testver
testvidinfo
testwin
testwm
threadwin