[CM] Disk full with SND files in /tmp

[Bill Schottstaedt]

> I did a search for recnelty modified files and found that /tmp is 
> filling up with very large files named snd_xxx_0.snd 

An interesting problem!  I never noticed it because I don't "exit" from
my various tests.  The temp file is the output of src-sound.  Since
you set up sample-readers into that data, I can't automatically delete
it when the sound is closed -- the readers have not yet been garbage
collected by Guile, so they might conceivably be accessed.  In "normal"
operation, the file would be deleted when the GC finally got called,
but in this case, you call "exit" which bypasses the GC (even calling
it explicitly at the end doesn't help in this case, though the Guile
folks claim this is not a bug).  So, I think the following will fix it:
set up a list of readers, call apply-ladspa, then explicitly free those
readers:

          (let ((readers 
                   (list (make-sample-reader 0 0 0)  ; W 
                         (make-sample-reader 0 0 1)  ; X 
                         (make-sample-reader 0 0 2)  ; Y 
                         (make-sample-reader 0 0 3)))) ; Z 
            (apply-ladspa readers
                          (list "ambis1" 
                                "Ambisonics-square-decoder" 0 1 1.4138 2 380 2.7) 
                          (mus-sound-frames name) 
                          "ambisonic file")
            (for-each free-sample-reader readers))

Also, you'll need the new (today's) tarball to compile the no-gui version;
whenever Sourceforge comes back, I'll also update the CVS version.