rpm question

[Michael Schwendt]

On Sun, 10 Jun 2012 22:00:34 -0700, Gordon Messmer wrote:

> On 06/09/2012 08:57 AM, JD wrote:
> > Is rpm broken?
> >
> > # rpm -qv --whatrequires libmapi libzeitgeist
> 
> No.  From 'man rpm':
>    --whatrequires CAPABILITY
>      Query all packages that require CAPABILITY for proper functioning.
> 
> The arguments to whatrequires aren't package names, they're capabilities 
> (which *may* be a package name).
> 
> Instead try:
> rpm -qv --whatrequires libmapi libzeitgeist $(rpm -q --provides libmapi 
> libzeitgeist | cut -f1 -d' ')

The idea is good, but it is error-prone because it cuts off version
information from the capabilities. For example, it could be that a
package 

  Provides: something… = 1.0

and another package

  Requires: something… = 2.0

which with your query would result in a false-positive.

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