"What satisfies this dependancy?"
Here's a simple question, I'm sure:
We all know how packages can provide meta-virtual-package-dependancy
thingies, e.g., the mailx package requires a mail-transport-agent package,
and a bunch of packages all provide mail-transport-agent, so take your pick.
How do I discover what installed package is currently providing/satisfying
one of those kinds of dependancies? Continuing the above example,
how do I find out which of the many possible packages is providing
mail-transport-agent on an installed system?
(The actual problems at hand are with libraries, but the solution should
be the same, or similar enough.)
I would therefore like to posit that computing's central challenge, viz. "How
not to make a mess of it," has /not/ been met.
- Edsger Dijkstra, 1930-2002