copyobj failure due to Ghostscript error

[John W. Eaton]

I recently started seeing the following error.  Is anyone else seeing 
something like this, or is it just me?

octave:1> test copyobj
GPL Ghostscript 9.05: Unrecoverable error, exit code 1
warning: your version of GraphicsMagick limits images to 8 bits per pixel
  ***** testif HAVE_MAGICK
 toolkit = graphics_toolkit ();
 graphics_toolkit ("gnuplot");
 unwind_protect
   h1 = figure ("visible", "off");
   x = 0:0.1:2*pi;
   y1 = sin (x);
   y2 = exp (x - 1);
   ax = plotyy (x,y1, x-1,y2, @plot, @semilogy);
   xlabel ("X");
   ylabel (ax(1), "Axis 1");
   ylabel (ax(2), "Axis 2");
   axes (ax(1));
   text (0.5, 0.5, "Left Axis", ...
         "color", [0 0 1], "horizontalalignment", "center");
   axes (ax(2));
   text (4.5, 80, "Right Axis", ...
         "color", [0 0.5 0], "horizontalalignment", "center");
   s1 = hdl2struct (h1);
   h2 = struct2hdl (s1);
   s2 = hdl2struct (h2);
   png1 = strcat (tmpnam (), ".png");
   png2 = strcat (tmpnam (), ".png");
   unwind_protect
     print (h1, png1);
     [img1, map1, alpha1] = imread (png1);
     print (h2, png2);
     [img2, map2, alpha2] = imread (png2);
   unwind_protect_cleanup
     unlink (png1);
     unlink (png2);
   end_unwind_protect
   assert (img1, img2);
   assert (map1, map2);
   assert (alpha1, alpha2);
 unwind_protect_cleanup
   close (h1);
   close (h2);
   graphics_toolkit (toolkit);
 end_unwind_protect
!!!!! test failed
imread: cannot find /tmp/oct-XViwDQ.png
octave:2>

jwe