.setpdfwrite

[David Kastrup]

For a while, I've been getting the warning

**** WARNING: The .setpdfwrite operator has been deprecated and will be removed 
entirely
              in the next release of Ghostscript. The functionality of this 
operator has
              been reduced to increasing the size of the VM threshold. If you 
believe you
              have a real need for this then you should replace your call to 
.setpdfwrite
              with:

                  3000000 setvmthreshold

on documentation builds.  There are comparatively few places where
.setpdfwrite is in our sources, but it's not clear to me just when
.setpdfwrite became unnecessary(?).  So I have no idea if just removing
it won't cause trouble with earlier versions of Ghostscript still in use
with LilyPond (not least of all because we may be using them in GUB).

Any ideas?

-- 
David Kastrup