execstack on epel 7 ppc64le?

[Susi Lehtola]

Hi,

I'm trying to build the ppc64le branch of OpenBLAS on EPEL7. But, I get 
the following error message in the setup phase:

DEBUG util.py:393:  Error: No Package found for /usr/bin/execstack

Why would this binary not exist on ppc64le?

[Peter Robinson]

> I'm trying to build the ppc64le branch of OpenBLAS on EPEL7. But, I get the
> following error message in the setup phase:
>
> DEBUG util.py:393:  Error: No Package found for /usr/bin/execstack
>
> Why would this binary not exist on ppc64le?

Because originally it was part of prelink, which was never supported
on aarch64/ppc64le, in RHEL it's shipped as part of that package, it
was dropped in F-23 and the useful execstack binary was split out into
it's own package. It shouldn't be built in EPEL as it'll conflict with
core RHEL packages.

Peter

[Orion Poplawski]

On 12/23/2015 10:57 PM, Peter Robinson wrote:
> > I'm trying to build the ppc64le branch of OpenBLAS on EPEL7. But, I get the
> > following error message in the setup phase:
> >
> > DEBUG util.py:393:  Error: No Package found for /usr/bin/execstack
> >
> > Why would this binary not exist on ppc64le?
>
> Because originally it was part of prelink, which was never supported
> on aarch64/ppc64le, in RHEL it's shipped as part of that package, it
> was dropped in F-23 and the useful execstack binary was split out into
> it's own package. It shouldn't be built in EPEL as it'll conflict with
> core RHEL packages.
>
> Peter

But perhaps we could do
https://fedoraproject.org/wiki/EPEL:Packaging#Limited_Arch_Packages

add ppc64le to the list of ExclusiveArch, and only ship execstack?
See http://koji.fedoraproject.org/koji/taskinfo?taskID=12421692

Or perhaps we could just go ahead an ship execstack with a Conflicts: prelink.
 Not sure it's that big of a deal.

[Orion Poplawski]

On 01/05/2016 10:36 AM, Orion Poplawski wrote:
> On 12/23/2015 10:57 PM, Peter Robinson wrote:
> > > I'm trying to build the ppc64le branch of OpenBLAS on EPEL7. But, I get the
> > > following error message in the setup phase:
> > >
> > > DEBUG util.py:393:  Error: No Package found for /usr/bin/execstack
> > >
> > > Why would this binary not exist on ppc64le?
> >
> > Because originally it was part of prelink, which was never supported
> > on aarch64/ppc64le, in RHEL it's shipped as part of that package, it
> > was dropped in F-23 and the useful execstack binary was split out into
> > it's own package. It shouldn't be built in EPEL as it'll conflict with
> > core RHEL packages.
> >
> > Peter
>
> But perhaps we could do
> https://fedoraproject.org/wiki/EPEL:Packaging#Limited_Arch_Packages
>
> add ppc64le to the list of ExclusiveArch, and only ship execstack?
> See http://koji.fedoraproject.org/koji/taskinfo?taskID=12421692
>
> Or perhaps we could just go ahead an ship execstack with a Conflicts: prelink.
>  Not sure it's that big of a deal.

Perhaps even ExclusiveArch the EPEL7 execstack package?