[gentoo-amd64] Re: Re: x86_64 optimization patches for glibc.

[Duncan <1i5t5.duncan@cox.net>]

Brian Hall posted <20050731085600.65fc8657.brihall@pcisys.net>, excerpted
below,  on Sun, 31 Jul 2005 08:56:00 -0600:

> Perhaps a USE flag could be created to enable the glibc patches, then a
> emerge --newuse could recompile glibc and the problem apps (or
> everything); maybe a mini-howto document would also be helpful.
> 
> I would certainly like an easy way to enable any "free" performance
> boost I can get!

Something like USE=dangerous-amd64-hack? <g>

(Seriously, there at least used to be a local use flag
USE=frickin-big-security-hole, or some such, on some app I can't remember
at the moment.  Turns out a teacher was using that app in his class as a
an example or something, so the dev left the ability to create it there,
but with a USE flag nobody in their right mind would normally enable.  I
wish I could remember what it was, but grepping use.local.desc for
anything that might be related doesn't seem to bring it up.  Perhaps the
app, or anyway the USE flag, has now been removed from portage?)

The use.local.desc description could point to the bug, which is IIRC what
the one above did, for those wanting more information about just why such
a USE flag exists, and just why someone might be persuaded to enable it.

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman in
http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html


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