Somewhere around ghostscript-8.63 (and presumably somewhat earlier),
all images generated by the latex2html's pstoimg utility became empty.
Some debugging revealed that the problem could be worked around by
disabling the `$have_geometry`

variable in pstoimg. This results
in no translation or cropping of the image when converting from
PostScript to `.pnm` using `gs`. The cropping is then
done later by pnmcrop. Fixing this bug will speed up image
translation. I first noticed the problem in early 2009 (on Fedora 10
and Mac OS X).

Here is the relevant diff for pstoimg:

diff -cb pstoimg-prv pstoimg *** pstoimg-prv Sat Dec 27 04:54:49 2008 --- pstoimg Fri Mar 13 03:39:48 2009 *************** *** 961,967 **** $bbw = int($bbw + 0.99); $bbh = int($bbh + 0.99); $GEOMETRY = "${bbw}x${bbh}"; ! $have_geometry = 1; last; } } --- 968,974 ---- $bbw = int($bbw + 0.99); $bbh = int($bbh + 0.99); $GEOMETRY = "${bbw}x${bbh}"; ! #jos: $have_geometry = 1; last; } } *************** *** 1001,1007 **** $bbw += 10; # add a 5pt margin for safety $bbh += 40; # add a 20pt margin for safety $GEOMETRY = "${bbw}x$bbh"; ! $have_geometry = 1; } if($have_geometry) { $gs_size = "-g$GEOMETRY "; --- 1008,1014 ---- $bbw += 10; # add a 5pt margin for safety $bbh += 40; # add a 20pt margin for safety $GEOMETRY = "${bbw}x$bbh"; ! #jos: $have_geometry = 1; } if($have_geometry) { $gs_size = "-g$GEOMETRY ";

Needless to say, this is just a workaround for the problem, and really the arguments to ghostscript should be properly debugged.

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