Re: Issue 1240 in lilypond: Music overflows page: #'((space . N) (stretchability . 0)) and nothing more with spacings

[lilypond]

Comment #2 on issue 1240 by n.puttock: Music overflows page: #'((space . N)  
(stretchability . 0)) and nothing more with spacings
http://code.google.com/p/lilypond/issues/detail?id=1240

#'((space . N) (stretchability . 0)) is effectively the same as setting  
alignment-distances (i.e., fixed space between staves).

Here are two simpler snippets, both demonstrating the same problem (and  
identical overflows):

<<
  \new Staff \with {
    \override VerticalAxisGroup #'next-staff-spacing =
    #'((space . 20) (stretchability . 0))
  } \relative c'' {
    \repeat "unfold" 42 { c4 c c c }
  }
  \new Staff \relative c' {
    \repeat "unfold" 42 { c4 c c c }
  }


\score {
  <<
    \relative c'' {
      \repeat "unfold" 42 { c4 c c c }
    }
    \relative c' {
      \repeat "unfold" 42 { c4 c c c }
    }
  >>
  \layout {
    \context {
      \Score
      \override NonMusicalPaperColumn #'line-break-system-details
      = #'((alignment-distances . (20)))
    }
  }
}

-> warning: couldn't fit music on page: overflow is 11.898871

The extent estimate is far worse using alignment-distances though.

Attachments:
        overflow.png  35.7 KB