cygwin64 - building 2.18.2 doc fails

[Marco Atzeri]

I am trying to build and package 2.18.2 for cygwin 64 bit.
I am currently stacked in building the documentation

any help in debugging the root cause or go over will be appreciated.

-------------------------------------------------------------------
make[4]: Entering directory 
'/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-
1.x86_64/build/build/input/regression/midi'
LILYPOND_VERSION=2.18.2 /usr/bin/python -tt 
/cygdrive/e/cyg_pub/devel/lilypond/l
ilypond-2.18.2-1.x86_64/build/scripts/lilypond-book.py -I 
/cygdrive/e/cyg_pub/de
vel/lilypond/lilypond-2.18.2-1.x86_64/build/input/regression/midi 
--process='/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-1.x86_64/build/build/out/bin/lilypond 
-I 
/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-1.x86_64/build/input/regression/midi 
 -dbackend=eps --formats=ps,png,pdf  -dinclude-eps-fonts 
-dgs-load-fonts --header=doctitle --header=doctitlecs 
--header=doctitlede --header=doctitlees --header=doctitlefr 
--header=doctitlehu --header=doctitleit --header=doctitleja 
--header=doctitlenl --header=doctitlezh --header=texidoc 
--header=texidoccs --header=texidocde --header=texidoces 
--header=texidocfr --header=texidochu --header=texidocit 
--header=texidocja --header=texidocnl --header=texidoczh 
-dcheck-internal-types -ddump-signatures -danti-alias-factor=2' 
--output=./out-www --format=texi-html --loglevel=WARN  --lily-output-dir 
/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-1.x86_64/build/build/out/lybook-db 
--redirect-lilypond-output out-www/collated-files.tely
command failed: 
/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-1.x86_64/build/build/out/bin/lilypond 
-I 
/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-1.x86_64/build/input/regression/midi 
 -dbackend=eps --formats=ps,png,pdf  -dinclude-eps-fonts 
-dgs-load-fonts --header=doctitle --header=doctitlecs 
--header=doctitlede --header=doctitlees --header=doctitlefr 
--header=doctitlehu --header=doctitleit --header=doctitleja 
--header=doctitlenl --header=doctitlezh --header=texidoc 
--header=texidoccs --header=texidocde --header=texidoces 
--header=texidocfr --header=texidochu --header=texidocit 
--header=texidocja --header=texidocnl --header=texidoczh 
-dcheck-internal-types -ddump-signatures -danti-alias-factor=2 -I 
"/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-1.x86_64/build/build/out/lybook-db" 
 -I  "."  -I  ".."  -I 
"/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-1.x86_64/build/build/input/regression/midi" 
 -I 
"/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-1.x86_64/build/input/regression/midi" 
--formats=eps  -deps-box-padding=3.000000  -dread-file-list 
-dno-strip-output-dir 
"/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-1.x86_64/build/build/out/lybook-db/snippet-names-4247093452240261833.ly"
Child returned 1
Error ignored by lilylib
Error trapped by lilypond-book

Please see 
/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-1.x86_64/build/build/out/lybook-db/snippet-names-4247093452240261833.log
-------------------------------------------------------------------

The log is not very informative

--------------------------------------------------------------------
Converting to 
`/cygdrive/e/cyg_pub/devel/lilypond/lilypond-2.18.2-1.x86_64/build/build/out/lybook-db/54/lily-487dce2c.pdf'...
Converting to PNG...
fatal error: GS exited with status: 256
-------------------------------------------------------------------

For what I can see the eps file is a valid one
and I am able to convert it in a png one with GraphicsMagick

$ gm identify -verbose lily-487dce2c.eps
gm identify: "gs" "-q" "-dBATCH" "-dMaxBitmap=50000000" "-dNOPAUSE" 
"-sDEVICE=pnmraw" "-dTextAlphaBits=4" "-dGraphicsAlphaBits=4" "-r72x72" 
"-g147x44" "-sOutputFile=/tmp/gm639Na7" "--" "/tmp/gmtzkB9o" "-c" "quit".
gm identify: "gs" "-q" "-dBATCH" "-dMaxBitmap=50000000" "-dNOPAUSE" 
"-sDEVICE=pnmraw" "-dTextAlphaBits=4" "-dGraphicsAlphaBits=4" "-r72x72" 
"-g147x44" "-sOutputFile=/tmp/gm639Na7" "--" "/tmp/gmtzkB9o" "-c" "quit".
Image: lily-487dce2c.eps
  Format: PS (Adobe PostScript)
  Geometry: 147x44
  Class: DirectClass
  Type: grayscale
  Depth: 8 bits-per-pixel component
  Channel Depths:
    Gray:     8 bits
  Channel Statistics:
    Gray:
      Minimum:                     0.00 (0.0000)
      Maximum:                 65535.00 (1.0000)
      Mean:                    59677.72 (0.9106)
      Standard Deviation:      13807.56 (0.2107)
  Filesize: 19.0Ki
  Interlace: No
  Orientation: Unknown
  Background Color: white
  Border Color: #DFDFDF
  Matte Color: #BDBDBD
  Page geometry: 147x44+0+0
  Compose: Over
  Dispose: Undefined
  Iterations: 0
  Compression: Undefined
  Comment:  Image generated by GPL Ghostscript (device=pnmraw)

  Signature: 
4b97440ae09d2a8ae9995c4c04ace92867b8b687d8efa4a2eeb8cf484df1acb9
  Tainted: False

$ gm convert -verbose lily-487dce2c.eps lily-487dce2c.png
gm convert: "gs" "-q" "-dBATCH" "-dMaxBitmap=50000000" "-dNOPAUSE" 
"-sDEVICE=pnmraw" "-dTextAlphaBits=4" "-dGraphicsAlphaBits=4" "-r72x72" 
"-g147x44" "-sOutputFile=/tmp/gmdF5dBa" "--" "/tmp/gmFXZJao" "-c" "quit".
gm convert: "gs" "-q" "-dBATCH" "-dMaxBitmap=50000000" "-dNOPAUSE" 
"-sDEVICE=pnmraw" "-dTextAlphaBits=4" "-dGraphicsAlphaBits=4" "-r72x72" 
"-g147x44" "-sOutputFile=/tmp/gmdF5dBa" "--" "/tmp/gmFXZJao" "-c" "quit".
lily-487dce2c.eps PS 147x44+0+0 DirectClass 8-bit 19.0Ki 0.000u 0:01
lily-487dce2c.eps=>lily-487dce2c.png PNG 147x44+0+0 DirectClass 8-bit 
0.000u 0:01

I do not see any real difference between the  lily-487dce2c.pdf and 
lily-487dce2c.png

lily-487dce2c.pdf
Description: Adobe PDF document

lily-487dce2c.eps
Description: PostScript document

snippet-names-4247093452240261833.log
Description: Text document

snippet-names-4247093452240261833.ly
Description: Text document

snippet-map-4247093452240261833.ly
Description: Text document

lily-487dce2c.png
Description: PNG image