On Sunday 09 April 2006 12:55, Iain Duncan wrote:

> > So, do you mean the code works OK without optimization, but crashes if
> > compiled with optimization ? That sounds like a possible compiler bug;
> > what compiler version is used in your current distribution ? You could
> > also experiment with various compiler flags to see when the crash occurs
> > and when it does not (example customCCFLAGS settings: "-O", "-O2",
> > "-O2 -fno-strict-aliasing").
> 
> Can you tell me what I should be using for the gcc3opt flags?

For debugging, gcc3opt should not be used. Otherwise, the gcc manual
documents these CPU types for -march:

    _k8, opteron, athlon64, athlon-fx_
          AMD K8 core based CPUs with x86-64 instruction set support.
          (This supersets MMX, SSE, SSE2, 3dNOW!, enhanced 3dNOW! and
          64-bit instruction set extensions.)

Try using one of the above (for example, gcc3opt=k8), and see if that
works. Or, if these all fail, just add buildRelease=1 or use customCCFLAGS.


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