Re: [PATCH] Fix ldconfig paths in default configuration

[Joerg Sonnenberger <joerg@xxxxxxxxxxxxxxxxx>]

On Tue, Apr 10, 2007 at 08:25:13AM -0700, Matthew Dillon wrote:
>     The only worry here is that having the paths might hide breakage 
>     elsewhere in the pkgsrc system.  But I don't think it would be a
>     big issue.

The reverse is the problem. Using ldconfig for this essentially breaks
the ability to have multiple incompatible versions of the same DSO in
the filesystem. Consider for example a library linked against libarchive
-- you can't ensure easily that it gets a major version bump as well.
This is fine as long as all programs e.g. in /usr and /usr/pkg agree on
the version they need and want. It doesn't stop me from installing a
separate version in /usr/local for the programs I can't recompile easily
etc. rpath allows me precise control of what library I end up with --
ldconfig is much coarser at that.

Like I said, ldconfig should pretty much die except for the few
situations where it is useful. But most of those are system specific and
*don't* make proper defaults.

Joerg