Doc build failure: pngtopnm: Error writing single byte sample to file

[Harmath Dénes]

Hi all,

I finally tried to build the docs myself again after older failed  
attempts to be able to test my translations locally. I'm on OS X 10.5  
using MacPorts with latest LilyPond development binary installed.  
After installing the required dependencies via MacPorts and following  
the instructions of http://kainhofer.com/~lilypond/Documentation/contributor/Building-documentation.html#Building-documentation-without-compiling-LilyPond 
, the last command (nice make LILYPOND_EXTERNAL_BINARY=/Applications/ 
LilyPond-dev.app/Contents/Resources/bin/lilypond doc) fails with the  
following error message:

Invoking `pngtopnm ./fa/lily-f024223a.png.old | pnmscale -reduce 2 2>/ 
dev/null | pnmtopng -compression 9 2>/dev/null > ./fa/lily- 
f024223a.png'...
pngtopnm_: Error writing single byte sample to file
GS exited with status: 32256command failed: /Applications/LilyPond- 
dev.app/Contents/Resources/bin/lilypond -I ./ -I ./out-www -I ../../ 
input -I /Users/thsoft/Development/lilypond-translation/Documentation - 
I /Users/thsoft/Development/lilypond-translation/Documentation/ 
snippets -I ../../input/regression/ -I /Users/thsoft/Development/ 
lilypond-translation/Documentation/included/ -I /Users/thsoft/ 
Development/lilypond-translation/mf/out/ -I /Users/thsoft/Development/ 
lilypond-translation/mf/out/ -I /Users/thsoft/Development/lilypond- 
translation/Documentation/pictures -I /Users/thsoft/Development/ 
lilypond-translation/Documentation/pictures/./out-www -dbackend=eps -- 
formats=ps,png,pdf  -dinclude-eps-fonts -dgs-load-fonts -- 
header=doctitle --header=doctitlefr --header=doctitlees -- 
header=doctitlede --header=doctitlenl --header=doctitleja -- 
header=doctitlehu --header=texidoc --header=texidocfr -- 
header=texidoces --header=texidocde --header=texidocnl -- 
header=texidocja --header=texidochu -dcheck-internal-types -ddump- 
signatures -danti-alias-factor=2 -I  "/Users/thsoft/Development/ 
lilypond-translation/out/lybook-db"  -I "/Users/thsoft/Development/ 
lilypond-translation/input/regression"  -I  "/Users/thsoft/Development/ 
lilypond-translation/input/regression"  -I  "/Users/thsoft/Development/ 
lilypond-translation/input/regression/out-www"  -I  "/Users/thsoft/ 
Development/lilypond-translation/input"  -I  "/Users/thsoft/ 
Development/lilypond-translation/Documentation"  -I "/Users/thsoft/ 
Development/lilypond-translation/Documentation/snippets"  -I  "/Users/ 
thsoft/Development/lilypond-translation/input/regression"  -I  "/Users/ 
thsoft/Development/lilypond-translation/Documentation/included"  -I  "/ 
Users/thsoft/Development/lilypond-translation/mf/out"  -I  "/Users/ 
thsoft/Development/lilypond-translation/mf/out"  -I  "/Users/thsoft/ 
Development/lilypond-translation/Documentation/pictures"  -I  "/Users/ 
thsoft/Development/lilypond-translation/Documentation/pictures/out- 
www" --formats=eps  --verbose  -deps-box-padding=3.000000  -dread-file- 
list -dno-strip-output-dir  "/Users/thsoft/Development/lilypond- 
translation/out/lybook-db/snippet-names--89582432.ly"
Child returned 1
make[3]: *** [out-www/collated-files.texi] Error 1
make[2]: *** [WWW-1] Error 2
make[1]: *** [WWW-1] Error 2
make: *** [doc-stage-1] Error 2

What could be the solution? Did anyone else encounter this?

(
FYI, the command is pngtopnm_ because I had to create a script for  
pngtopnm to run correctly as described in http://kainhofer.com/~lilypond/Documentation/contributor/Building-documentation.html#Building-documentation-without-compiling-LilyPond 
. So I renamed pngtopnm to pngtopnm_ and created /opt/local/bin/ 
pngtopnm with the following contents:

export DYLD_LIBRARY_PATH=/opt/local/lib
exec /opt/local/bin/pngtopnm_ "$@"
)

Thanks in advance,
Dénes Harmath