[bugweek] A script to detect -mtune=i386 libraries

[Alan Cox]

On Sat, Sep 25, 2004 at 11:09:42PM +0200, Arjan van de Ven wrote:
> in theory we compile all of fedora core with -mtune=i686 (or
> -mtune=pentium4 nowadays). however that only actually happens if
> packages propagate the RPM_OPT_FLAGS into the CFLAGS properly; almost
> all but not quite not all packages actually do this.

I noticed a curiosity playing with this that perhaps the gcc folks can
explain the right choice for - on Dothan -mtune=i686 is a lot faster than
tuning for pentium4.