Re: [gentoo-portage-dev] IUSE and userland_, elibc_, kernel_, etc.

[Andrew Gaffney]

Zac Medico wrote:
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> Mike Frysinger wrote:
>> userland_* and all other profile-expanded USE flags are "magical" and arent
>> available for user consumption.  that is how i view IUSE.  it was my
>> understanding that portage was going to get fixed to automatically include
>> the profile-expanded ones and so adding anything to IUSE now for ebuilds is
>> dumb when they're just going to get turned around and removed.  the same goes
>> for all implicit/automatic USE expanding things.  portage can do this for us,
>> so having developers track it themselves seems like a waste of time.
>> -mike
>
> Fair enough, but we need to define a way to "automatically include
> the profile-expanded ones" since none currently exists. One thing
> that I don't like about using USE_EXPAND_HIDDEN is that ARCH isn't a
> USE_EXPAND.  It would have been more consistent if it had been,
> along with KERNEL, ELIBC, and USERLAND.

Why not turn it into one? The whole USE="${ARCH}" thing is inconsistent with the 
USE_EXPANDed KERNEL, ELIBC, AND USERLAND. Yes, I know that it's been around a 
lot longer than the others, but that's not a good reason for keeping it the way 
it is.

I don't think it would be a difficult transition. Is there any reason that 
portage can't set both USE=${ARCH} *and* USE=arch_${ARCH} for a while (until all 
ebuilds have been changed to use the new USE_EXPANDed form)? We could even just 
have portage set both forms indefinitely (the old form does no harm if nothing 
is using it).

-- 
Andrew Gaffney                                 http://dev.gentoo.org/~agaffney/
Gentoo Linux Developer             Catalyst/Installer + x86 release coordinator
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