SDL pulseaudio workaround hack

[Warren Togami]

* Tue Oct 30 2007 Warren Togami <wtogami at redhat.com> - 1.2.8-4
- SDL_AUDIODRIVER=esd temporary hack until SDL supports pulseaudio directly
   avoids applications from locking up. (#358341)

At the last minute before F-8's release I added this ugly hack to 
SDL_mixer to force SDL to use esd for sound instead of the default ALSA. 
  This change was made because it would at least allow sound on popular 
games like wesnoth to work, and make the Fedora Games spin not 
dead-on-arrival.

Unfortunately, this had the side-effect that we knew at the time of 
disabling SDL sound if you have pulseaudio disabled or removed.

I should have thought of this earlier, but the /etc/profile.d/* scripts 
that set the environment variable commanding SDL to use esd could have 
been conditional.  Still not perfect, but better to tide us over until 
Lennart implements native pulseaudio for SDL that he promised to do 
before F9.

The following changes should improve our workaround.  I am uncertain if 
the .csh version needs a matching unset for nonomatch or does it happen 
automatically?

Should we push this in a SDL_mixer update?

Warren Togami
wtogami at redhat.com

cvs diff: Diffing .
Index: SDL_pulseaudio_hack.csh
===================================================================
RCS file: /cvs/pkgs/rpms/SDL_mixer/devel/SDL_pulseaudio_hack.csh,v
retrieving revision 1.1
diff -u -p -r1.1 SDL_pulseaudio_hack.csh
--- SDL_pulseaudio_hack.csh     31 Oct 2007 14:39:10 -0000      1.1
+++ SDL_pulseaudio_hack.csh     27 Nov 2007 01:33:43 -0000
@@ -1,2 +1,4 @@
  # Temporary hack until SDL directly supports pulseaudio
-setenv SDL_AUDIODRIVER esd
+# If alsa-plugins-pulseaudio is installed, force SDL to output sound to esd
+set nonomatch
+if ( -e /usr/lib*/alsa-lib/libasound_module_pcm_pulse.so ) setenv 
SDL_AUDIODRIVER esd
Index: SDL_pulseaudio_hack.sh
===================================================================
RCS file: /cvs/pkgs/rpms/SDL_mixer/devel/SDL_pulseaudio_hack.sh,v
retrieving revision 1.1
diff -u -p -r1.1 SDL_pulseaudio_hack.sh
--- SDL_pulseaudio_hack.sh      31 Oct 2007 14:39:10 -0000      1.1
+++ SDL_pulseaudio_hack.sh      27 Nov 2007 01:33:43 -0000
@@ -1,2 +1,3 @@
  # Temporary hack until SDL directly supports pulseaudio
-export SDL_AUDIODRIVER=esd
+# If alsa-plugins-pulseaudio is installed, force SDL to output sound to esd
+[ -e /usr/lib*/alsa-lib/libasound_module_pcm_pulse.so ] && export 
SDL_AUDIODRIVER=esd