Casey Daniels wrote:
> I finally was able to finish my first LFS system and it was a fun time.
> Now I have some questions. I plan on building my second build that I
> actually plan on using but didn't understand much about Package
> Management or Upgrading. From the Short info in the Book it looks like
Package management and version control are separate, but related,
activities. You seem to be more concerned with the latter in your
post. A good package manager can help with version control, but
not much. Usually, all you'll get from a decent package manager
is "This package depends upon library-so-and-so-rev-2.6.so
and you have library-so-and-so-rev-2.8.so, install aborted."
Now, whether rev-2.8 and rev-2.6 actually -are- incompatible one
can only find out by using the --force option of the package manager
and seeing whether it breaks anything. Upstream, with Linux anyway,
has a blind eye to this stuff.
Whether a given new version of something be compatible with the
current build is a very problematical thing to ascertain. With
some things, like gcc, changing even a minor number can be a
problem. With others, even major changes don't affect the interface.
Sometimes, incompatibilities don't surface for some time.
Good backups are key.
Mike
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