I don't understand revdep-rebuild

Message

machinelou · Post by **machinelou** » Sun Aug 13, 2006 8:28 pm

Hi, I'm trying to setup a headless server without X, gnome, or any of that stuff. However, when I run revdep-rebuild, I get the following output:

saturn ~ # revdep-rebuild -X
Configuring search environment for revdep-rebuild

Checking reverse dependencies...

Packages containing binaries and libraries broken by a package update
will be emerged.

Collecting system binaries and libraries... done.
(/root/.revdep-rebuild.1_files)

Collecting complete LD_LIBRARY_PATH... done.
(/root/.revdep-rebuild.2_ldpath)

Checking dynamic linking consistency...
broken /usr/lib/X11/xkb/xkbcomp (requires libxkbfile.so.1)
broken /usr/lib/gnome-vfs-2.0/modules/libfile.la (requires /usr/lib/libgnomevfs-2.la)
broken /usr/lib/gnome-vfs-2.0/modules/libfile.la (requires /usr/lib/libgconf-2.la)
done.
(/root/.revdep-rebuild.3_rebuild)

Assigning files to packages... terminated.
Removing incomplete /root/.revdep-rebuild.4_packages_raw.

So, if I'm interpreting the output correctly.. It's saying that I have the following packages installed: xkbcomp, and gnome-vfs.. However, I just emerged -C gnome-vfs. Here's the output of emerge -s gnome-vfs to prove it:

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saturn ~ # emerge -s gnome-vfs
Searching...   
[ Results for search key : gnome-vfs ]
[ Applications found : 2 ]
 
*  dev-cpp/gnome-vfsmm
      Latest version available: 2.12.0
      Latest version installed: [ Not Installed ]
      Size of files: 314 kB
      Homepage:      http://gtkmm.sourceforge.net/
      Description:   C++ bindings for gnome-vfs
      License:       LGPL-2.1

*  gnome-base/gnome-vfs
      Latest version available: 2.14.2
      Latest version installed: [ Not Installed ]
      Size of files: 1,773 kB
      Homepage:      http://www.gnome.org/
      Description:   Gnome Virtual Filesystem
      License:       GPL-2 LGPL-2

Look! It's not installed! Why does revdep-rebuild want to install its dependencies? Emerge -s also shows that xkb is not installed.. What's up?

sfragis · Post by **sfragis** » Sun Aug 13, 2006 10:16 pm

machinelou wrote: Look! It's not installed! Why does revdep-rebuild want to install its dependencies? Emerge -s also shows that xkb is not installed.. What's up?

Maybe revdep-rebuild caches results in temporary files (/root/.revdep-rebuild.N.XXX).
Try ignoring them:

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$ revdep-rebuild -i

sternklang · Post by **sternklang** » Sun Aug 13, 2006 10:53 pm

Does the file /usr/lib/gnome-vfs-2.0/modules/libfile.la exist? If for some reason it wasn't removed during the unmerge, then revdep-rebuild is quite rightly finding that it requires other parts of gnome-vfs that are now missing because you unmerged gnome-vfs. In which case, manually delete that file and your mystery is solved.

Now why this file would be left over is another mystery.

mv · Post by mv » Mon Aug 14, 2006 4:41 pm

sternklang wrote:Does the file /usr/lib/gnome-vfs-2.0/modules/libfile.la exist? ...
Now why this file would be left over is another mystery.

Unfortunately, why .la-Files are left over is usually no mystery

The reason is that fix_libtool_files.sh changes these files, and when now a new version of a package is emerged in which the file has vanished, portage will not delete the old .la-file, because its mtime is changed.

I consider this a bug in fix_libtool_files.sh: It should update the information in the portage database, too. Does somebody know a way how to do this manually?

sternklang · Post by **sternklang** » Mon Aug 14, 2006 4:53 pm

Ah, so that's it. Thanks. Now that I know, I did some searching of bugzilla. See [bug=71264]these[/bug] [bug=90744]bugs[/bug] for information on how fix_libtool_files.sh is going to go away as people upgrade their gcc, so no fix will be necessary, just a bit of patience.

machinelou · Post by **machinelou** » Mon Aug 14, 2006 6:35 pm

So, until we get gcc-4.1, is it kosher to just delete .la-files of uninstalled packages? Or, should I just use revdep-rebuild to tell me which packages need to be rebuilt, and then rebuild them manually, skipping those that have already been removed?

sternklang · Post by **sternklang** » Mon Aug 14, 2006 6:54 pm

machinelou wrote:So, until we get gcc-4.1, is it kosher to just delete .la-files of uninstalled packages? Or, should I just use revdep-rebuild to tell me which packages need to be rebuilt, and then rebuild them manually, skipping those that have already been removed?

They're not needed any longer and are only there due to a quirk in a rarely-run recovery script. I would delete them and move on.