[...]
> > Again, there may be other issues that I'm not aware of.  But I'm
> > pretty sure that the above is valid and real enough to require
> > some concern if you are setting up a computer system for others
> > to use.
> 
> I do not think that is a major problem. If somebody changes the ABI of a
> library without changing the version in SONAME, then it is simply a bug
> like any other bug. pkgsrc can't protect you from bugs. Also, such bugs
> will be hopefully rare and soon caught by some of the numerous Linux or
> BSD distributions.

If the problem only affects a little-used feature, though, this may not
be so easy to catch.  You might not know that it's a library versioning
problem, nor which library.

Whether it is likely enough to happen (and to be of such a nature that
a recompile will necessarily fix it), I'm not so sure.


-- 
  "I probably don't know what I'm talking about."  http://www.olib.org/~rkr/