Klavs Klavsen wrote:

>The end result should be, that Gentoo automagically selects the optimal
>CFLAGS (in performance and stability - perhaps with some optimizations
>flagged as "unstable" so people can select "optimize for performance" vs.
>"optimize for stability") depending on the X, Y and Z from above.
>  
>
If you don't want to give gentooers a chance to set whatever they want 
in CHOST,CFLAGS and CXXFLAGS it would be a mistake. Not everyone want 
the greatest opimization for their processor! For example, I use on my 
servers optimizations for pentium2 no matter what processor I have on 
that particular computer.