[Texmacs-dev] graphviz plugin broken?

[Gregory Wright]

Hi,

I recently built TeXmacs-1.0.2.10 and noticed that the simplest tests 
of the
graphviz plugin are failing. I am using graphviz-1.10. Both were 
compiled
from scratch on Mac OS X 10.3.2 (Panther). (I maintain the ports of 
TeXmacs
and graphviz for the darwinports project.)


If I try:

Graphviz 1] graph test { a }

I get no output on the TeXmacs canvas but I get the error message in the
terminal window:

TeXmacs] Launching 'tm_graphviz --texmacs'
TeXmacs] Loading ectt10 at 600 dpi
TeXmacs] Loading cmr10 at 600 dpi
TeXmacs] Running ghostscript ramdisc://image.ps
Error: /syntaxerror in -file-
Operand stack:
   --nostringval--   setupLatin1
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   
--nostringval--   2   %stopped_push   --nostringval--   --nostringval-- 
  --nostringval--   false   1   %stopped_push   1   3   %oparray_pop   
1   3   %oparray_pop   1   3   %oparray_pop   1   3   %oparray_pop   
.runexec2   --nostringval--   --nostringval--   --nostringval--   2   
%stopped_push
Dictionary stack:
   --dict:1106/1123(ro)(G)--   --dict:0/20(G)--   --dict:70/200(L)--   
--dict:0/200(L)--
Current allocation mode is local
AFPL Ghostscript 8.11: Unrecoverable error, exit code 1



If I run gs on the file dotty.tmp.dot I get no errors (using the 
command in the tm_gs script).

If I further try to make another graph,


Graphviz 2] graph foo { b }

   *** malloc[24682]: error for object 0x1804800: Incorrect checksum 
for freed
   object - object was probably modified after being freed; break at 
szone_error


This appears to be a more significant error. I would appreciate some 
help on
where to start tracking it down.

Best Wishes and Happy New Year,
Greg Wright