Patch from Martin Lange (mala-sdl at hotmail.com) to unregister SDL's win32 windowclass when shutting down the video subsystem...this allows you to safely unload/reload the SDL shared library on Windows between initializations. Discussion is here: http://www.devolution.com/pipermail/sdl/2005-February/067424.html

## Makefile.am for SDL using the AIX UMS sound driver

noinst_LTLIBRARIES = libaudio_ums.la
libaudio_ums_la_SOURCES = $(SRCS)

# The SDL audio driver sources
SRCS =	SDL_umsaudio.c	\
	SDL_umsaudio.h