[PD-dev] floating point exception while compiling devel

[Mathieu Bouchard]

On Mon, 16 Jan 2006, Ed Kelly wrote:

> ...on a Pentium M 1.6, Fedora Core 3, gcc-3.3 and scons 0.96.1.D001

>  Don't know if the output is any use, but the preprocessed compiler
>  output is enclosed.

I don't think that the output is of any use. The output of "scons" would 
have been better, but fortunately I already know what the problem is.

> It was in module u_pdreceive.o that the error occurred.

This is because you are have enabled SIMD on a compiler where SIMD is
buggy (gcc 3.3.x).

Either do "scons simd=0" or figure out how to keep the essential SIMD 
stuff enabled while disabling it for the 95% of the code for which it 
doesn't matter as much... I haven't tried the latter because I haven't 
really learned scons. Other people would urge you to upgrade to GCC 4.0 or 
4.1.

I tried installing GCC 4.0.2 manually which kinda works, but GCC 4.0.x
doesn't want to compile some other program that I really need and it turns
out that the way I've installed it, GCC 3.3.x doesn't work anymore because
of a conflict of libstdc++ versions that I don't know how to fix. So I 
completely reverted to GCC 3.3.x.

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| Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
| Freelance Digital Arts Engineer, Montréal QC Canada