Re: Package optimizations

[Jason Bacon <outpaddling%yahoo.com@localhost>]

On 12/10/18 2:14 PM, Joerg Sonnenberger wrote:
> On Mon, Dec 10, 2018 at 04:31:24PM +0000, coypu%sdf.org@localhost wrote:
> > following up:
> >
> > there's some discussion about whether we should allow packages to have
> > their own optimization flags.
> We generally do not *want* that. The majority of packages has absolutely
> no valid reason to insist on any specific optimizer flags. Period. There
> are special cases and those are already just fine. Read: appending
> certain flags like -ffast-math just works fine. -OMG is not generally
> better than -O, contrary to the Gentoo Racing Community.
>
> Joerg
How portable do we want binary packages to be?  If a packager inserts 
-mavx2, it may not run on hardware that's just a few years old.

I think if we're going to allow this, there has to be a whitelist of 
allowable flags that are certified for portability to any hardware we 
consider worth supporting.

    JB