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X server segfault problem

I'm having a problem with cygwin 1.7.7
and X version where an OpenGL
application from perl using the Mesa3D
binding dies in the test with a segfault:

  A fatal error has occurred and Cygwin/X
  will now exit.

  Caught signal 11 (Segmentation fault).
  Server aborting.

  Please open /var/log/xwin/XWin.0.log
  for more information.

When I close the popup alert, X exits.
The XWin.0.log only has Segmentation
fault at address 0xe.

I've been unable to determine if the
problem is in the perl OpenGL module
code or in the updated X+GLX+Mesa3D.

To reproduce, just download the perl
OpenGL module source:

and extract the directory.  cd to the
OpenGL-0.64 directory and run the following

( set -x ; perl Makefile.PL ; make ; make test ) 2>&1 | tee ../pogl-x-crash-log.txt

which should configure, build and run the test
for this module.  You will need to have gcc,
perl and opengl installed in your cygwin.

Any help appreciated since I can no longer
develop on cygwin since the X server started
crashing...not even to fix the problem (if
it is the OpenGL module code).

Thanks in advance,

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