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From: "Dave Korn" <dave DOT korn AT artimi DOT com>
To: <cygwin AT cygwin DOT com>
Subject: RE: octave compiled with gcc-3.4.4-2 - error messages during make check
Date: Mon, 21 Aug 2006 10:16:03 +0100
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On 19 August 2006 23:28, James R. Phillips wrote:

> I've built a test version of octave 2.1.73 on cygwin using the experimental
> gcc-3.4.4-2 compiler.  Thanks to Brian Dessent for pointing out a packaging
> problem with the compiler and a workaround:
> http://www.cygwin.com/ml/cygwin/2006-07/msg00620.html .

  Thanks for helping test the new compiler package!

> The build is successful, but several of the tests executed during "make
> check" issue error messages like the following:
> 
> Running
> /home/dad/sources/octave/octave-2.1.73/test/octave.test/quad/quad.exp ...
>     102 [main] octave 1252 fork: child -1 - died waiting for longjmp before
> initialization, retry 0, exit code
>  0x80, errno 11
> 
> Interestingly, none of these tests actually fail in the summary report.
> 
> The only hits I get with Google on this error message ["died waiting for
> longjmp before initialization, retry 0"] relate to relatively recent issues
> with the cygwin dll.  I'm not sure how to classify this issue, i.e. whether
> it is a cygwin issue, a compiler issue, or an octave issue.  Also I'm not
> sure how serious it is, since the tests it occurred on appeared to complete
> successfully.
> 
> Any help with analysis of these questions would be appreciated.

  Change one parameter at a time.  Keep all others constant.  See what
changes.

  First thing would be to experiment with a few different versions of the
cygwin dll, including the most recent snapshot.  Re-run "make check" in the
exact same object dir without rebuilding the application.  Then, keeping the
dll constant, try rolling your gcc install back to 3.4.4-1, building in a
fresh object dir, and running make check there.  Please let us know what
results you get.


    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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