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Date: Mon, 16 Dec 2013 13:07:32 +0100
From: Jeroen Roovers <jer@gentoo.org>
To: gentoo-dev@lists.gentoo.org
Subject: Re: [gentoo-dev] New global use flags: 3dnowext, mmxext, ssse3,
 sse4_1, avx, avx2
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On Mon, 16 Dec 2013 02:13:28 +0100
"Francesco R." <vivo75@gmail.com> wrote:

> another possible case are packages that do run-time checking of usable
> instruction set.

www-plugins/adobe-flash[1]

> The use flag could restrict the code to be compiled and installed from
> the ebuild.

Yes, and in that extreme case, it installs nothing at all. :)

      jer


[1] https://bugs.gentoo.org/show_bug.cgi?id=410547