Issue 2423 in lilypond: lilypond-book fails to include a file from a parent directory

[lilypond]

Status: Accepted
Owner: address@hidden
Labels: Type-Scripts

New issue 2423 by address@hidden: lilypond-book fails to include a  
file from a parent directory
http://code.google.com/p/lilypond/issues/detail?id=2423

Jakub Pavlik writes:

I've found a serious difference in behaviour between lilypond-book 2.12.3
and 2.15.34:

If you include a LilyPond file in your LaTeX document using
\lilypondfile{file.ly}
and this file includes another file using
\include "anotherfile.ly"
everything is OK. But then you want to include one more file, which is in
the parent directory:
\include "../onemorefile.ly"
And, this detail is also important, you run lilypond-book with the option
--out, which puts all the output in a specified directory.

lilypond-book 2.12.3 does, what you want. lilypond-book 2.15.34 ends with
an error:
error: cannot find file: `../onemorefile.ly'

Original message including a test case:  
http://www.mail-archive.com/address@hidden/msg70425.html