Resolving Dependencies

[Stuart D. Gathman]

On Thu, 14 Jul 2011, Ramin Rad wrote:

> The dependencies in RPM are only meaningful when it comes to packages (and
> virtual resources) that are in the RPM DB.
> 
> If you say "Requires: libQtCore.so.4", RPM thinks there is another RPM
> package called libQtCore.so.4 that has to be installed prior to this and it
> checks its database and it doesn't find it, hence the error.
> 
> What you really want is file dependency. I am not sure if RPM supports that,
> but you can simply put something like this in your "%pre" section:

RPM supports file dependency (for files provided by RPMs) - just use
the full path:

Requires: /usr/lib/libQtCore.so.4

> ###########
> %pre
> 
> if [ ! -e /usr/lib/libQtCore.so.4 ]
> then
>   echo "ERROR: /usr/lib/libQtCore.so.4 doesn't exist! Bailing out."
>   exit 1
> fi
> 
> # end of %pre
> ###########

That works for files not provided by RPMs.

--
 	      Stuart D. Gathman <stuart at bmsi.com>
     Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.