[tex-live] os.spawn and AR crash mystery resolved

[Reinhard Kotucha]

On 22 April 2010 T T wrote:

 > Manuel, you've been on the right track all along.  I finally (almost)
 > got to the bottom of it.
 > 
 > The problem is the same as reported in the past for texdoc:
 > 
 > http://www.ntg.nl/pipermail/dev-luatex/2008-September/001771.html
 > 
 > It comes from kpathsea, which changes \ to / in USERPRIFILE var and
 > this leads to the dreaded AR crash with "internal error occurred".
 > I've been unable so far to locate at which point this substitution
 > happens, but at least there is an easy fix for that, which I will
 > commit shortly:

Thanks, this is great.

 > What's more, this USERPROFILE manipulation happens only with w32tex
 > builds.  For my private mingw static build this doesn't happen.

This is curious because Akira couldn't reproduce the problem.  

Thanks again,
  Reinhard

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