Is revdep-rebuild now obsolete?

Felig · Apprentice Joined: 22 Jun 2004 Posts: 180

I used to run revdep-rebuild -p to see what was broken, but it hasn't said boo for a while now, in fact since about the same time all those preserved lib warnings started appearing. I understand the preserved-libs in general -- it used to delete older versions of libs when new versions came out, which clobbered my boot at least once. So I suppose I should like it. But when I emerge @preserved-rebuild, it doesn't seem to change much.

Is revdep-rebuild now useless? And what is the proper way to deal with @preserved-rebuild? The documentation seems pretty scattered. A nice simple HOWTO would be nice: HOWTO get rid of preserved lib messages, or HOWTO rebuild them properly, or even HOWTO find out about this stuff other than google and turn up lots of half baked unofficial old outdated stuff.

Etal · Veteran Joined: 15 Jul 2005 Posts: 1931

I don't think that revdep-rebuild is useless since they changed it quite a bit recently. The new preserved-libs feature is supposed to make frequent revdep-rebuilds unnecessary, but it might still be useful.

Once you "emerge @preserved-libs", all the preserved lib mesages should go away - so it seems you might have hit a bug... Could you post which ones are not going away?
_________________
“And even in authoritarian countries, information networks are helping people discover new facts and making governments more accountable.”– Hillary Clinton, Jan. 21, 2010

Felig · Apprentice Joined: 22 Jun 2004 Posts: 180

FuzzyRay · Retired Dev Joined: 02 Oct 2003 Posts: 79

Genone · Posted: Wed Oct 01, 2008 8:41 pm Post subject:

preserve-libs is intended to reduce the necessity of revdep-rebuild, not to obsolete it. However, there's another thing in the works (the @missing-rebuild package set) to replace revdep-rebuild eventually in the long run.

cyrillic

FuzzyRay · Retired Dev Joined: 02 Oct 2003 Posts: 79

Felig · Apprentice Joined: 22 Jun 2004 Posts: 180

Here is the preserved libs report after an emerge:

Etal · Veteran Joined: 15 Jul 2005 Posts: 1931

Well, I think you've answered your own question: emerge @preserved-rebuild doesn't do anything because you can't re-emerge programs that depend on the old libraries, and so the old libraries are left for those programs!

Now the question I'd like to ask you is, if you don't use KDE of GNOME, why would you leave the kde and gnome flags enabled? You'd save so much space and time if you just added "-kde -gnome" and did emerge -N @installed && emerge --depclean -a, and you wouldn't have this problem anymore!

_________________
“And even in authoritarian countries, information networks are helping people discover new facts and making governments more accountable.”– Hillary Clinton, Jan. 21, 2010

Felig · Apprentice Joined: 22 Jun 2004 Posts: 180

Etal · Veteran Joined: 15 Jul 2005 Posts: 1931