Re: [gentoo-user] libpcre.so.0 not used, yet system broken...

[Joseph <syscon780@gmail.com>]

I see the same situation, is is asking to rebuild and remove against "libpcre.so.0"
Should I backup this file first, before removing it?

The strange part is that on my other systems it did not ask me to rebuild/remove this library.

--
Joseph


On 05/31/12 19:34, Jarry wrote:
>Hi,
>I updated recently libpcre to 8.30-r2 on ~10 system without
>problems. Today I updated the last one. As usually, this
>message has been printed:
>
>* Messages for package dev-libs/libpcre-8.30-r2:
>* Old versions of installed libraries were detected on your system.
>* In order to avoid breaking packages that depend on these old libs,
>* the libraries are not being removed. You need to run revdep-rebuild
>* in order to remove these old dependencies. If you do not have this
>* helper program, simply emerge the 'gentoolkit' package.
>*
>*   # revdep-rebuild --library '/lib64/libpcre.so.0' &&
>  rm '/lib64/libpcre.so.0'
>
>So I run first:
># revdep-rebuild --library '/lib64/libpcre.so.0'
>
>To my big surprise, none packages have been found:
>* There are no dynamic links to /lib64/libpcre.so.0. All done
>
>I was a little suspicious because I remember on all other
>systems 2 packages had to be recompiled. So I created copy
>of the above mentioned library in homedir, and removed it:
># rm '/lib64/libpcre.so.0'
>
>Then I tried "revdep-rebuild" and got plenty of errors:
>
>grep: error while loading shared libraries: libpcre.so.0:
>  cannot open shared object file: No such file or directory
>
>Apparently, grep needs libpcre.so.0. But how is it possible
>that "revdep-rebild --library '/lib64/libpcre.so.0'" does not
>find any package linked to libpcre.so.0, yet when I remove it,
>grep is broken?
>
>Does anybody remember what was the 2nd package linked to
>libpcre.so.0, which had to be recompliled after libpcre
>upgrade?
>
>Jarry