Re: [gentoo-user] Blocks with xz-utils lzma-utils

[Helmut Jarausch <jarausch@igpm.rwth-aachen.de>]

On 17 Dec, Dale wrote:
> I'm trying to get KDE 4 where I can use it so I used the layman to get 
> the latest.  Anyway, I seem to have ran into a Block, may not be related 
> to KDE4 tho, that I just can't make sense of.  This is the error I get:
> 
> [blocks b     ] kde-base/kde-meta:4.3[-kdeprefix] 
> ("kde-base/kde-meta:4.3[-kdeprefix]" is blocking kde-base/kde-meta-9999)
> [blocks B     ] app-arch/lzma-utils ("app-arch/lzma-utils" is blocking 
> app-arch/xz-utils-9999)
> [blocks B     ] app-arch/xz-utils ("app-arch/xz-utils" is blocking 
> app-arch/lzma-utils-4.32.7)
> 
> Total: 278 packages (17 upgrades, 19 new, 242 in new slots, 248 
> uninstalls), Size of downloads: 240,422 kB
> Conflict: 511 blocks (2 unsatisfied)
> Portage tree and overlays:
>  [0] /usr/portage
>  [1] /usr/local/portage/layman/kde
> 
>  * Error: The above package list contains packages which cannot be
>  * installed at the same time on the same system.
> 
>   ('ebuild', '/', 'app-arch/xz-utils-9999', 'merge') pulled in by
>     app-arch/xz-utils required by ('installed', '/', 
> 'app-arch/rpm2targz-9.0.0.3g', 'nomerge')
>     app-arch/xz-utils required by ('installed', '/', 
> 'sys-libs/gpm-1.20.5', 'nomerge')
>     app-arch/xz-utils required by ('installed', '/', 
> 'dev-libs/mpfr-2.4.1_p1', 'nomerge')
>     (and 10 more)
> 
>   ('ebuild', '/', 'app-arch/lzma-utils-4.32.7', 'merge') pulled in by
>     app-arch/lzma-utils required by ('installed', '/', 
> 'app-portage/eix-0.17.0', 'nomerge')
>     app-arch/lzma-utils required by ('installed', '/', 
> 'app-arch/libarchive-2.7.0-r1', 'nomerge')
> 
> 
> I didn't post the whole thing but the part about the Blocks with a 
> capital B.  I have unmerged both lzma-utils and xz-utils but I still get 
> this error.  How can they block it when they are not installed yet?  I'm 
> missing something here.  I just don't see it. 
> 
> I found a thread on the forums and did what it said but I still get 
> this.  It said to unmerge xz-utils which I did.  Then I unmerged 
> lzma-utils for good measure.
> 
> Someone tell me the trick to this?  Thanks.
> 
> Dale

I had a similar problem since I wanted to use the -J option of tar
(telling it to use the xz compressor)
Someone replied to my bug report that once app-arch/xz-utils becomes
stable it will replace lzma-utils. But I needed both now.
So, I installed app-arch/xz-utils outside of portage with the
prefix /usr/local. Then I told portage about it by

echo "app-arch/xz-utils-9999" > /etc/portage/profile/package.provided

That works.

Helmut.

-- 
Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany