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[Octave-bug-tracker] [bug #41216] epslatexstandalone not working for flt

From: Rik
Subject: [Octave-bug-tracker] [bug #41216] epslatexstandalone not working for fltk backend
Date: Tue, 14 Jan 2014 13:19:56 +0000
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:26.0) Gecko/20100101 Firefox/26.0

Follow-up Comment #3, bug #41216 (project octave):

Take a look at the file private/__fltk_print__.m at the bottom near line 170. 
There is the following:

for n = 1:numel (pipeline)
  if (opts.debug)
    fprintf ("fltk-pipeline: '%s'\n", pipeline{n});
  drawnow (gl2ps_device{n}, strcat ('|',pipeline{n}));

if (! isempty (strfind (opts.devopt, "standalone")))
  opts.latex_standalone (opts);

The intermittent failure seems to point to a race condition.  The drawnow call
actually uses gl2ps to create the output and then pipes it through a command
that might include ghostscript or epstool.

To confirm that it is a race condition you might want to add a 'sleep (1)'
call just before opts.latex_standalone (opts).  If that works repeatedly then
we can sort out a better solution.


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