Re: [gentoo-user] Uncle: qt-*:4 dependencies/blocks preventing world update

[Amit Dor-Shifer <amitds@oversi.com>]

With regards to this:
I believe I'm in the same situation:

<QUOTE>
amit0 ~ # emerge -auvt world

These are the packages that would be merged, in reverse order:

Calculating dependencies... done!

!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

x11-libs/qt-core:4

  ('ebuild', '/', 'x11-libs/qt-core-4.5.2', 'merge') pulled in by
    ~x11-libs/qt-core-4.5.2[-debug] required by ('ebuild', '/', 
'x11-libs/qt-test-4.5.2', 'merge')
    ~x11-libs/qt-core-4.5.2[glib,-debug,-qt3support] required by 
('ebuild', '/', 'x11-libs/qt-gui-4.5.2-r2', 'merge')
    ~x11-libs/qt-core-4.5.2[-debug] required by ('ebuild', '/', 
'x11-libs/qt-dbus-4.5.2', 'merge')
    (and 2 more)

  ('ebuild', '/', 'x11-libs/qt-core-4.5.1', 'merge') pulled in by
    >=x11-libs/qt-core-4.5.1:4[qt3support,ssl] required by ('ebuild', 
'/', 'kde-base/libkcddb-4.3.1', 'merge')
    x11-libs/qt-core:4 required by ('ebuild', '/', 
'kde-base/automoc-0.9.88', 'merge')
    ~x11-libs/qt-core-4.5.1[qt3support,-debug] required by ('ebuild', 
'/', 'x11-libs/qt-sql-4.5.1', 'merge')
    (and 2 more)

x11-libs/qt-gui:4

  ('ebuild', '/', 'x11-libs/qt-gui-4.5.1', 'merge') pulled in by
    >=x11-libs/qt-gui-4.5.1:4[accessibility,dbus] required by ('ebuild', 
'/', 'kde-base/libkcddb-4.3.1', 'merge')
    >=x11-libs/qt-gui-4.5.1:4[accessibility,dbus] required by ('ebuild', 
'/', 'kde-base/libknotificationitem-4.3.1', 'merge')
    >=x11-libs/qt-gui-4.4.0:4 required by ('ebuild', '/', 
'media-sound/phonon-4.4_pre20090520', 'merge')
    (and 2 more)

  ('ebuild', '/', 'x11-libs/qt-gui-4.5.2-r2', 'merge') pulled in by
    ~x11-libs/qt-gui-4.5.2[-debug,-qt3support] required by ('ebuild', 
'/', 'x11-libs/qt-opengl-4.5.2-r1', 'merge')
    ~x11-libs/qt-gui-4.5.2[-debug] required by ('ebuild', '/', 
'x11-libs/qt-webkit-4.5.2-r1', 'merge')


<SNIP>

emerge: there are no ebuilds built with USE flags to satisfy 
"~x11-libs/qt-core-4.5.2[qt3support,-debug]".
!!! One of the following packages is required to complete your request:
- x11-libs/qt-core-4.5.2 (Change USE: +qt3support)
(dependency required by "x11-libs/qt-qt3support-4.5.2" [ebuild])
(dependency required by "kde-base/libkcddb-4.3.1" [ebuild])
(dependency required by "app-cdr/k3b-1.68.0_alpha3" [ebuild])
(dependency required by "world" [argument])

</QUOTE>

However, the mentioned news item doesn't appear on my 'unread' list:

amit0 ~ # eselect news list
News items:
  [1]   read    2009-04-06  Migration to X.org Server 1.5
  [2]   read    2009-10-02  Migration to X.org Server 1.6 and libxcb 1.4
  [3]   read    2009-07-02  kdeprefix and monolithic ebuilds issues
  [4]   read    2009-04-18  Generation 1 Java Setup Deprecated
  [5]   read    2009-07-12  xorg-x11-7.4 and xorg-server-1.5 kernel support

though it does exist on the filesystem:

[13:35:50] amit0 ~ # head 
/usr/portage/metadata/news/2009-09-27-qt_use_changes/2009-09-27-qt_use_changes.en.txt
Title: Qt 4.5.2 default USE flag changes
Author: Alex Alexander <wired@gentoo.org>
Content-Type: text/plain
Posted: 2009-09-27
Revision: 1
News-Item-Format: 1.0
Display-If-Installed: <x11-libs/qt-core-4.5.2

Would that "Display-If-Installed" be the reason why it's missing from 
the list?

amit0 ~ # qlist -Uv qt
dev-libs/dbus-qt3-old-0.70
dev-libs/poppler-qt3-0.10.7
virtual/poppler-qt3-0.10.7
x11-libs/qt-3.3.8b-r1 (cups nis opengl)

What I'm trying to say is: if indeed the issue here is the same as 
Alan's, then "qt_use_changes" should show up when I 'eselect news read'.

Amit

Dirk Heinrichs wrote:
> Am Donnerstag 22 Oktober 2009 23:19:07 schrieb Alan E. Davis:
>   
>> I've tried alot of things, but I give up.  Can someone help me with the
>>  knot of dependencies that has been holding my system in hostage from any
>>  attempt to update world, for weeks now?
>>     
>
> Please read your portage news, especially "2009-09-27-qt_use_changes". See 
> also this weeks thread with subject "Confusion".
>
> HTH...
>
> 	Dirk
>