Patch to SDL_sound.c

[scott mc]

http://ports.haiku-files.org/browser/haikuports/trunk/media-libs/sdl-sound/SDL_sound-haiku.c.diff?rev=146
Haiku uses gcc 2.95.3 which complains since a *internal wasn't defined
prior to being used.  I suppose you might be able to just swap the two
lines, as a similar line of code in at line 528 didn't trip up the
build in Haiku:
http://hg.icculus.org/icculus/SDL_sound/file/668dd6675b7f/SDL_sound.c
There's still a couple other issues with building sdlsound on Haiku.
Once I figure out a clean patch for them I will post them to the list.
-scottmc