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+JACK is a low-latency audio server, written primarily for Linux. It can
+connect a number of different applications to an audio device, as well
+as allow them to share audio among themselves. Its clients can run in
+their own processes (ie. as a normal application) or they can run within
+a JACK server instance (i.e. as a "plugin").
+
+Jack uses /dev/shm as a temporary directory for its processes; this is a
+relatively new change, as it used to use /mnt/ramfs. You may pass an
+alternate location as JACKTMP when executing the script. For example:
+ JACKTMP=/mnt/tmp jack-audio-connection-kit.SlackBuild
+Assuming you use the default /dev/shm as temporary directory, be sure you
+have an appropriate line in /etc/fstab to mount it:
+ tmpfs /dev/shm tmpfs defaults 0 0
+If you don't accept the script's default, you'll need to have the appropriate
+mountpoint set up in fstab and mounted, but a discussion of how to do that
+is outside the scope of this document.
+
+jack optionally uses libsndfile which is also available at SlackBuilds.org.