Re: [gentoo-user] Does (-win32codecs) mean Slots?

[David Morgan <david.morgan@wadham.oxford.ac.uk>]

(top posting because I can't be bothered to sort all the irrelevant
 stuff you posted)

The person in question is using /usr/portage/profiles/uclibc/x86 

If you look in /usr/portage/profiles/uclibc/x86/parent you'll see that
t's parent profile is /usr/portage/profiles/uclibc/. If you look in
/usr/portage/profiles/uclibc/parent you'll see that it's profile is
/usr/portage/profiles/base.

Now, look in /usr/portage/profiles/base/use.mask

That's the reason the win32codecs useflag is masked on this profile, as
I explained in an earlier email.

Dave


On 13:28 Wed 13 Jul     , Holly Bostick wrote:
> David Morgan schreef:
> > On 12:39 Wed 13 Jul     , Holly Bostick wrote:
> >>Obviously -- or at least it seems obvious to me, but that doesn't say
> >>much-- that if the package is hard-masked, the USE flag that is
> >>associated with it will be disabled (because the package the USE flag
> >>would call is unavailable).
> > 
> > 
> > Maybe, but that's not the way portage works these things out
> > 
> Well, it looks like you're at least partially right-- I went back to the
> source:
> 
> > # Copyright 2004 Gentoo Foundation.
> > # Distributed under the terms of the GNU General Public License v2
> > # $Header: /var/cvsroot/gentoo-x86/profiles/default-linux/use.mask,v 1.14 2005/05/20 11:52:10 lu_zero Exp $
> > 
> > # This file masks out USE flags that are simply NOT allowed in the default
> > # profile for any architecture.  This works, for example, if a non-default
> > # profile (such as the selinux profiles) have a USE flag associated with
> > # them.
> > 
> > uclibc
> > 
> > # aqua USE flag is only valid on Mac OS X
> > aqua
> > 
> > # amd64 only:
> > emul-linux-x86
> > 
> > # sparc only:
> > ultra1
> > 
> > # x86 only
> > divx4linux
> > win32codecs
> > kqemu
> 
> 
> > # Copyright 2004 Gentoo Foundation.
> > # Distributed under the terms of the GNU General Public License, v2
> > # $Header: /var/cvsroot/gentoo-x86/profiles/default-linux/x86/use.mask,v 1.8 2005/05/21 01:13:41 lu_zero Exp $
> > 
> > # This file masks out USE flags that are simply NOT allowed in the default
> > # x86 profile.  This works, for example, if another architecture's
> > # profile have a USE flag associated with (such as altivec, mmx, etc).
> > 
> > # Unmask x86 instruction sets
> > -mmx
> > -mmx2
> > -mmxext
> > -sse
> > -sse2
> > -3dnow
> > -3dnowext
> > -win32codecs
> 
> Plus, these files are where the masks are, the use.mask for the uclibc
> profile only contains
> 
> > pam
> > nls
> > nptl
> > nis
> > # aqua USE flag is only valid on Mac OS X
> > aqua
> > 
> > # this seems to pull in pre compiled glibc libs.
> > divx4linux
> > 
> > emul-linux-x86
> > 
> > 
> > 
> 
> and nothing else (and the other folders in the profile folder don't
> contain a use.mask).
> 
> Oh, wait a minute, I think I found it:
> 
> > # Copyright 1999-2004 Gentoo Foundation
> > # Distributed under the terms of the GNU General Public License v2
> > # $Header: /var/cvsroot/gentoo-x86/profiles/selinux/use.mask,v 1.1 2005/05/08 23:37:08 pebenito Exp $
> > 
> > -selinux
> > 
> > # disallow posix acl since this is SELinux
> > acl
> > 
> > # aqua USE flag is only valid on Mac OS X
> > aqua
> > 
> > # must use a specific SELinux profile that unmasks this
> > uclibc
> > 
> > 
> > 
> > # Copyright 1999-2004 Gentoo Foundation
> > # Distributed under the terms of the GNU General Public License v2
> > # $Header: /var/cvsroot/gentoo-x86/profiles/selinux/2005.1/x86-uclibc/use.mask,v 1.3 2005/05/14 20:53:38 pebenito Exp $
> > 
> > -uclibc
> > 
> > -win32codecs
> > 
> > # PPC instructions
> > altivec
> > 
> > nls
> > 
> 
> But from this, it looks like there is no way to unmask the USE flags in
> question-- "simply NOT allowed" seems pretty definitive, although a
> careful reading of man portage might reveal a loophole. But I doubt it..
> and in fact, it does not seem to have any such, from the files list in
> man portage:
> 
> 
> > SYNOPSIS
> >        /etc/
> >               make.globals
> >               make.conf(5)
> > 
> >        /etc/make.profile/
> >               deprecated
> >               make.defaults
> >               packages
> >               packages.build
> >               package.provided
> >               parent
> >               use.defaults
> >               use.mask
> >               virtuals
> > 
> >        /etc/portage/
> >               bashrc
> >               package.mask
> >               package.unmask
> >               package.keywords
> >               package.use
> >               mirrors
> >               categories
> > 
> >        /etc/portage/profile/
> >               site-specific overrides of /etc/make.profile/
> > 
> >        /usr/portage/profiles/
> >               arch.list
> >               categories
> >               info_pkgs
> >               info_vars
> >               package.mask
> >               profiles.desc
> >               thirdpartymirrors
> >               use.desc
> >               use.local.desc
> >               use.mask
> > 
> >        /var/lib/portage/
> >               world
> > 
> 
> Don't see anything like a use.unmask file.
> 
> What I would now be interested in, if this concerned me, is why this
> particular USE flag is "simply NOT allowed" under this extremely
> specialized profile, but I have no idea where I would find that
> information (except maybe b.g.o, or the gentoo docs related to either
> uclibc, hardened/selinux, masked packages, or all of the above).
> 
> Holly
> 
> -- 
> gentoo-user@gentoo.org mailing list
> 

-- 
djm

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