On Wednesday 30 April 2008, John covici wrote:

> OK, here is the requested output.

These questions are coming up a lot lately, and it's always the same
stuff: how the hell do I read this output? I don;t have these things
installed. Basic ideas of blockers;

The output doesn't mean that you have such-and-such and it is causing a
problem. What it does mean is that in the list of stuff portage wants
to update, there are packages that conflict with other packages. They
may or may not be installed already, that is irrelevant. The fact is
that portage *wants* to install them, but *can't* ecuase of blockers.
You have to look at the first field on each line between [] so get more
detail: U means upgrade, R means replace, N means new (as in you don;t
have it already installed), D means downgrade and nomerge shows up when
you use --tree, a package to be merged will show the parents that are
pulling it in, even if the parent doesn't need updating.


p.s. Something went wrong with your mailer, it mangled line breaks and
mushed the entire output into one huge para :-( So I've copy-pasted
from the original instead. Hope this makes sense, I copied the parts
that show the dependencies then the related block from the end, and
done it for gtk-doc and gstreamer.

I'm giving a lot of detail, as it is *vital* when using Gentoo that you
completely totally and utterly grasp how the emerge output works and
how to resolve blockers.

[nomerge    ] gnome-base/gnome-2.20.3 USE="accessibility cdr cups
dvdr esd ldap -mono"
[ebuild   U ] app-text/evince-2.22.1.1 [2.20.2] USE="dbus doc gnome
tiff* -debug -djvu -dvi -gnome-keyring% -t1lib" 1,610 kB
[ebuild   U ] mail-client/evolution-2.22.1 [2.12.3-r1] USE="crypt
dbus hal ipv6 ldap spell
ssl -debug -kerberos -krb4 -mono -networkmanager -nntp -pda -profile
(-doc%*)" 30,227 kB
[ebuild   U ] x11-libs/libwnck-2.22.1 [2.20.3] USE="doc -debug" 672
kB
[ebuild   U ] gnome-extra/evolution-data-server-2.22.1 [1.12.3]
USE="doc ipv6 ldap ssl -debug -gnome-keyring% -kerberos -krb4
(-keyring%)" 7,424 kB
[ebuild   U ]  x11-libs/gtk+-2.12.9-r2 [2.12.8] USE="X cups doc jpeg
tiff* -debug -vim-syntax -xinerama" 15,652 kB
[ebuild N   ]   dev-util/gtk-doc-am-1.10-r1 395 kB
[ebuild   U ]   dev-util/gtk-doc-1.10-r1 [1.8-r2]
USE="doc -debug -emacs" 0 kB

[blocks B   ] dev-util/gtk-doc-am (is blocking
dev-util/gtk-doc-1.8-r2)

So, you currently have gtk-doc-1.8.-r2 and gtk+ wants to merge
gtk-doc-1.10-r1 and gtk-doc-am-1.10-r1. Obviously, 1.10 was split into
two packages (doc and doc-am) to make someone's life easier. However,
one or more files from doc-am-1.10-r1 collides with something that came
from doc-1.8-r2. Portage will not do this without serious intervention,
otherwise package A obliterates package B's stuff.

Solution: unmerge the existing version of gtk-doc:

emerge -avC gtk-doc

emerge world should later pick it up and replace it with the correct
one. Check again once emerge world is complete if gtk-doc did in fact
get put back.





[nomerge    ] media-sound/sound-juicer-2.22.0 [2.20.1-r1]
USE="-debug -test (-flac%*) (-ogg%*)"
[ebuild   U ] media-plugins/gst-plugins-meta-0.10-r2 [0.10] USE="X
alsa dvd%* esd mad%* mpeg%* ogg%* vorbis%*
xv -a52% -dvb% -ffmpeg% -flac% -mythtv% -oss* -theora%" 0 kB
[ebuild N   ]  media-libs/gst-plugins-ugly-0.10.6 USE="-debug" 0 kB
[nomerge    ] media-libs/gst-plugins-ugly-0.10.6 USE="-debug"
[ebuild   UD] media-libs/gstreamer-0.10.14 [0.10.19] USE="(-debug%)
(-nls%*) (-test%)" 0 kB

[blocks B   ] <media-libs/gst-plugins-ugly-0.10.6-r1 (is blocking
media-libs/gstreamer-0.10.19)

This is similar to the above. portage wants to merge the latest
gstreamer, but that conflicts with an earlier gst-plugins-ugly that you
already have. gstreamer and it's plugins tend to come as matched pair
but they can only be merged one by one, so something has to come off
first before two new packages can go on. Easiest is to unmerge the
plugin, as you have gst-plugins-meta which will put it back:

emerge -avC gst-plugins-ugly ; emerge -av gstreamer gst-plugins-meta


Run these and check the various outputs that emerge does the right thing
each time, I can't guarantee 100% results. You'll have to compensate
for my lack of a crystal ball by using your eye balls ;-)




--
Alan McKinnon
alan dot mckinnon at gmail dot com

--
gentoo-user@(protected)