qt3.3-devel providing qt-devel ?

[Paul Howarth]

On Sat, 5 May 2012 21:32:49 +0100
Jonathan Underwood <jonathan.underwood at gmail.com> wrote:

> Hi,
> 
> I am trying to build djview4 for el6. The spec file has a
> BuildRequires: qt-devel >= 4.2. However, for some reason during
> package building qt3.3-devel is pulled in (both on the builders and in
> mock). I notice that:
> 
> $ rpm -q --provides qt3-devel
> ...
> qt-devel = 1:3.3.8b-30.el6
> qt3-devel = 3.3.8b-30.el6
> ...
> 
> which seems slightly weird, but I'd still not expect that to satisfy
> the BuildRequires for qt-devel, since I'm requiring >= 4.2.

1:3.3.8b > 0:4.2, so the requirement is satisfied.

> Looking at qt4-devel I see it provides (amongst other things):
> 
> qt4-devel = 4.6.2-20.el6
> qt-devel = 1:4.6.2-20.el6
> 
> So, why isn't this being pulled in? Is it because of the epoch?

Given that both packages satisfy the requirement, I'd bet yum is
picking qt-devel rather than qt4-devel by virtue of its shorter name.

> And
> why isn't the build simply failing at satisfying the BuildRequires?
> (It fails later on during %build for related reasons). Is this a bug
> with the qt3.3 package?

BuildRequire: qt4-devel >= 4.2

should do what you want.

Paul.