rpmbuild harmless error message - update

[David Dembrow]

>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 16 Feb 2015 13:45:56 +0100
> From: Florian Festi <ffesti at redhat.com>
> To: rpm-list at lists.rpm.org
> Subject: Re: rpmbuild harmless error message
> Message-ID: <54E1E684.40404 at redhat.com>
> Content-Type: text/plain; charset=windows-1252
>
> On 02/13/2015 05:58 PM, David.Dembrow at corp.rockwellcollins.com wrote:
> > I have a spec file to package an internal application that generates the
> > following error messages which appear to happen before the prep section:
> >
> >         tar:  Error in writing to standard output
> >         tar:  Error is not recoverable exiting now
> >
> > then it starts processing the prep section, and eventually successfully
> > builds the rpm packages.
> >
> > Can someone help me track down what the problem is and how I may get rid
> > of the problem.
>
> Hard to tell without the spec file. You are aware that the %setup macro
> will try to unpack the source tarball, right?
>
> Florian
>
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> Thanks for the reply.  I am aware that the setup macro tries to unpack the
> source archive, and it appears to work.


Thanks for the reply.  I am aware that the setup macro tries to unpack the
source archive, and it appears to work.

Looking into what is causing the error, I found it happens for the URL:
entry which I am trying to use a variable that is generated from the
archive label.
An example spec entry follows.

%define url_label %(echo `tar -tzf ../SOURCES/%{name}_%{version}.tar.gz |
head -1`)

followed by the URL entry that uses the variable.

URL:  %{url_label}

It actually works but includes a harmless side effect of the tar error
messages.

Is there a more appropriate solution?

Thanks,
---d.dembrow
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