Re: Cannot find -latomic when building for epel7 aarch64

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On Fri, 2018-10-19 at 21:37 -0700, Josh Stone wrote:
> On 10/19/18 6:19 PM, Robert-André Mauchin wrote:
> > On samedi 20 octobre 2018 00:31:50 CEST Jonathan Dieter wrote:
> > > I'm trying to build duperemove[1] for epel7[2], and it's building on
> > > all the arches except aarch64.
> > > 
> > > I'm BR'ing libatomic, but the error it gives in build.log[3] for
> > > aarch64 is:
> > > /usr/bin/ld: cannot find -latomic
> > > 
> > > All current Fedora release builds were fine.
> > > 
> > > I'm sure I'm missing something obvious, but does anyone have an idea
> > > what's going on?
> > > 
> > 
> > libatomic is 4.8.5 like the gcc version for other arches.
> > On aarch64, libatomic is 8.2.1 whereas gcc is still 4.8.5.
> > Maybe this causes some issues.
> 
> For aarch64, libatomic comes from the gcc-libraries source package,
> which I believe only exists to provide runtime support for devtoolset.
> It does not have libatomic.so, only libatomic.so.1 and .so.1.2.0.  You
> probably need to use devtoolset gcc to actually build+link it.
> (Were those SCLs ever enabled for EPEL?)

Ok, thanks for the explanation.  Unless there's an easy BuildRequires I
can add, I think I'll just leave duperemove out of EPEL.

Jonathan
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