On Jun 1, 2009, at 3:28 PM, Anshuman Kanetkar wrote:
> Can the 'Obsoletes' and 'Requires' relations be combined together,
> directed towards the same target from an RPM?
> a.rpm -- Obsoletes --> b.rpm
> a.rpm -- Requires --> b.rpm
> What I want to express is that package 'a' needs 'b' as a prerequisite
> ('a' cannot be installed unless 'b' is installed first), but the
> installation of 'a' should then obsolete 'b'.
> Does RPM allow such semantics?
Requires: is an assertion statement and ordering hint, Obsoletes: is a
of package erasing, which are quite different things.
And so the combination is "allowed".
But its unlikely that specifying a Requires: and Obsoletes: does what
Let's back up a bit ...
What are you trying to accomplish in packaging?
At a general level, not with specific questions about what Requires:
can or will do.
There's likely a solution even if not specifically what you are asking
re Requires: and Obsoletes:.
73 de Jeff
Received on Mon Jun 1 21:53:34 2009