Re: Checking for SSE/MMX support

[joerg%britannica.bec.de@localhost]

On Sun, Apr 23, 2006 at 09:01:12PM -0500, Hugo Rivera wrote:
> > You shouldn't let the package detect such things on
> > the build host,
> > because resulting binary packages (e.g. from bulk
> > builds) may be used
> > on incompatible machines.  The preferred way is to
> > make them options.  
> 
> That's what I'm trying to do, to make SCons figure out
> weather or not each machine has SSE/MMX support by
> using the output of some variable (hopefully with
> sysctl).

What Geert tried to tell you was that this is not desired.
Please use the option framework and e.g. --enable-sse or whatever it is
and don't force any *compile time* detection. For example I'm building
packages on a P4-Xeon, they should also run on a Pentium MMX.

Joerg


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