alsa-plugins: add patch (from alsa git) to fix JACK problem

srcpkgs/alsa-plugins/patches/fix-jack-blocking-pipe.patch

@@ -0,0 +1,32 @@
+--- jack/pcm_jack.c.old	2011-11-05 00:39:14.238794519 -0600
++++ jack/pcm_jack.c	2011-11-05 00:43:07.936817855 -0600
+@@ -307,6 +307,19 @@
+ 	return 0;
+ }
+ 
++static int make_nonblock(int fd)
++{
++	int fl;
++
++	if ((fl = fcntl(fd, F_GETFL)) < 0)
++		return fl;
++
++	if (fl & O_NONBLOCK)
++		return 0;
++
++	return fcntl(fd, F_SETFL, fl | O_NONBLOCK);
++}
++
+ static int snd_pcm_jack_open(snd_pcm_t **pcmp, const char *name,
+ 			     snd_config_t *playback_conf,
+ 			     snd_config_t *capture_conf,
+@@ -363,6 +376,9 @@
+ 
+ 	socketpair(AF_LOCAL, SOCK_STREAM, 0, fd);
+ 	
++	make_nonblock(fd[0]);
++	make_nonblock(fd[1]);
++
+ 	jack->fd = fd[0];
+ 
+ 	jack->io.version = SND_PCM_IOPLUG_VERSION;

srcpkgs/alsa-plugins/template

@@ -1,7 +1,7 @@
 # Template build file for 'alsa-plugins'.
 pkgname=alsa-plugins
-version=1.0.24
-revision=3
+version=1.0.24 # NOTE: Remove fix-jack-blocking-pipe.patch on next release!
+revision=4
 distfiles="ftp://ftp.alsa-project.org/pub/plugins/$pkgname-$version.tar.bz2"
 build_style=gnu-configure
 configure_args="--disable-maemo-plugin --with-speex=lib"