[Fedora-packaging] [perl-Coro] Work-aroung missing libecb package on build-triggering host

[Paul Howarth]

On Tue, 23 Oct 2012 14:12:40 +0200
Petr Pisar <ppisar at redhat.com> wrote:

> On Tue, Oct 23, 2012 at 01:19:40PM +0200, Ralf Corsepius wrote:
> > On 10/22/2012 05:34 PM, Petr Pisar wrote:
> > >On Mon, Oct 22, 2012 at 10:14:25AM -0500, Rex Dieter wrote:
> > >>On 10/22/2012 10:06 AM, Ralf Corsepius wrote:
> > >>>On 10/22/2012 03:47 PM, Petr Pisar wrote:
> > >>>>--- a/perl-Coro.spec
> > >>>>+++ b/perl-Coro.spec
> > >>>>@@ -35,7 +35,7 @@ Requires:       perl(EV) >= 3
> > >>>>  Requires:       perl(Event) >= 1.08
> > >>>>  Requires:       perl(Guard) >= 0.5
> > >>>>  Requires:       perl(Storable) >= 2.15
> > >>>>-Provides:       bundled(libecb) = %(rpm -q libecb --qf
> > >>>>'%{VERSION}') +Provides:       bundled(libecb)%(rpm -q libecb
> > >>>>--qf ' = %{VERSION}'
> > >>>>2>/dev/null)
> > >>>
> > >>>I could be wrong, but IIRC, calling rpm inside of rpm specs is
> > >>>not allowed in Fedora.
> > >>>
> > >>>Apart of this, what you are doing is rendering your built
> > >>>non-deterministic - Another "strictly forbidden" item.
> > >>
> > >>Agreed.  What you're trying to say essentially is that the bundled
> > >>libecb version matches the system/non-bundled version, which
> > >>really doesn't make any sense.  I'd suggest you simply remove the
> > >>versioning (or list the real bundled version some other way).
> > >>
> > >This is something like static library. Thus code gets frozen into
> > >the package at build-time. So I concluded it's good idea to know
> > >which version of the library the binary package incorporates.
> > >
> > >However if you think this is bad idea I will remove it.
> > 
> > Yes, I do - I am insisting on the rpm calls to be removed.
> > 
> Could you explain why calling rpm from spec file is bad idea?

The buildroot may have been populated by an rpm version outside a
chroot, with an incompatible version of libdb to the one in the chroot,
resulting in rpm within the chroot possibly being unable to read the
rpm database.

Paul.