[Fedora-packaging] Automatic detection of Requires and versions

[Ralf Corsepius]

On Mon, 2008-01-07 at 16:15 +0100, Patrice Dumas wrote:
> On Mon, Jan 07, 2008 at 10:40:05AM -0200, Eduardo M KALINOWSKI wrote:
> > Hi,
> > 
> >     I'm attempting to package a program I wrote, that uses the GTK+
> > libraries. It uses features first found in the 2.10.X series, so I
> > include
> > 
> > BuildRequires: gtk2-devel >= 2.10.0
> > 
> > (and similar lines for glib and other required libraries). All this is
> > OK. The problem is regarding the Requires for the generated .rpm. I
> > could use
> > 
> > Requires: gtk2 >= 2.10.0
> > 
> > but apparently this is bad style and bad for maintenance, because
> > dependencies are found automatically on build time. However, without
> > manually adding the requires, the generated .rpm contains (with regard
> > to GTK+) this:
> > 
> > libgtk-x11-2.0.so.0
> > 
> > that is, no mention of the version, and I expect that even a GTK+ 2.8
> > package (old as that may be) should provide that file with that name.
> > 
> >     What is the best way to handle that? Include the Require manually?
> > Leave this as-is?
> 
> I'd say the reverse than Rex, include the Require manually. But I may
> well be wrong.

Well, you are. If an upstream has its package properly designed (Esp.
uses SONAMEs properly), then there should not be any need to let a
run-time/application-package explicitly require a package by name.

Ralf