On Feb 22, 2015, at 4:37 PM, Alan W. Irwin <ir...@beluga.phys.uvic.ca> wrote:

> @Jim: could you please try the attached patch on Mac OS X, and
> especially the test mentioned in the commit message?
> 

I was looking at the patch and I wonder if the approach is a bit fragile.  
There was a similar issue when plplot used temporary files and good solution 
was implemented in src/plstdio.c.  In particular, look at the 
pl_create_tempfile() and it uses mktemp() to generate a  unique temporary 
filename (there is an ifdef early that makes it work for Windows).  Perhaps 
wxWidgets could use mktemp() to generate a unique name.


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