Re: Issue 1336 in lilypond: skipTypesetting segfaults when set during a skipBars-induced MultiMeasureRest spanner

[lilypond]

Comment #28 on issue 1336 by v.villenave: skipTypesetting segfaults when  
set during a skipBars-induced MultiMeasureRest spanner
http://code.google.com/p/lilypond/issues/detail?id=1336

Yes, that's been a known-but-undocumented limitation (at least to me) for  
several years now.

I think the way to go is to merge your patch anyway, and possibly open a  
new issue about that. (Non-Critical, by all means.)
Until then, if anything, I'm able to modify my skip-as-needed function in  
music-functions.scm to make sure that the segfault doesn't happen when  
using showLastLength or showFirstLength.
The ideal thing to do, of course, would be to exit cleanly with a "no music  
in this score" message. But I suspect it's beyond my abilities.