lilypond-book produces PDF files even when not needed

[Mats Bengtsson]

Hi,

Since the PDF output support was added to lilypond-book, PDF versions
of every lily-NNNNNN-N.eps file are produced even if you run
lilypond-book without the --pdf flag. Apart from taking extra time, this
is also (as far as I can see) the cause of the bug described in
http://lists.gnu.org/archive/html/lilypond-user/2006-08/msg00123.html

What happens is that Ghostscript is called to convert a lily-NNNNNN-N.eps
file that doesn't contain any fonts at all, into a PDF. Of course this 
will fail
but it seems that on Linux, the return value from gs is still 0 but on other
operating systems (and/or other gs versions) gs will return a non-zero 
which
makes lilypond and thereby lilypond-book fail. However, if you call 
lilypond-book
with --verbose, you will see error printouts from gs (for example, when 
calling
lilypond-book --verbose -o out --psfonts 
input/tutorial/lbook-latex-test.tex):

Layout output to `lily-1661877703-8.eps'...
Converting to `lily-1661877703-8.pdf'...
Invoking `gs   -dNOSAFER   -dEPSCrop  -dCompatibilityLevel=1.4  
-dNOPAUSE -dBATCH -r1200  -sDEVICE=pdfwrite 
-sOutputFile="lily-1661877703-8.pdf" -c .setpdfwrite -f 
"lily-1661877703-8.eps"'...AFPL Ghostscript 8.50 (2004-12-10)
Copyright (C) 2004 artofcode LLC, Benicia, CA.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Can't find (or can't open) font file 
/pkg/ghostscript/8.50/os/share/ghostscript/8.50/Resource/Font/Emmentaler-20.
Can't find (or can't open) font file Emmentaler-20.
Querying operating system for font files...
Didn't find this font on the system!
Substituting font Courier for Emmentaler-20.
Loading NimbusMonL-Regu font from 
/pkg/ghostscript/8.50/os/share/ghostscript/fonts/n022003l.pfb... 2344252 
1024820 1677540 368218 2 done.
Substituting .notdef for noteheads.s2
Loading CenturySchL-Roma font from 
/pkg/ghostscript/8.50/os/share/ghostscript/fonts/c059013l.pfb... 2501588 
1175393 1677540 369601 2 done.
Substituting .notdef for clefs.G


  /Mats

--
=============================================
        Mats Bengtsson
        Signal Processing
        Signals, Sensors and Systems
        Royal Institute of Technology
        SE-100 44  STOCKHOLM
        Sweden
        Phone: (+46) 8 790 8463                         
       Fax:   (+46) 8 790 7260
        Email: address@hidden
        WWW: http://www.s3.kth.se/~mabe
=============================================