[Rivet] Build of latest 2-6-x release branch

[David Yallup]

Hi Andy,

I'm using what should be a fairly up to date compiler set on my laptop 
for this for now (although I do need to configure this on our 
SL6/CentOS7 clusters at some point):

david at yallup:~$ gcc --version
gcc (Ubuntu 5.4.0-6ubuntu1~16.04.10) 5.4.0 20160609

Which does surprise me a little if this isn't handling some C++11 
structures?

Cheers,
David


On 17/07/18 20:48, Andy Buckley wrote:
> Hi David,
>
> What platform is this on? I found the same problem on SL7 without a 
> "modern compiler" override of the native environment: looks like the 
> required bit of C++11 is not supported in GCC 4.8.5.
>
> Since this enhancement of Particles over the previous "typedef 
> vector<Particle>" is syntactic sugar, and lots of people expect Rivet 
> to build (not 100% unreasonably, despite not being an official HEP 
> platform) on vanilla SL7, I think we probably have to postpone that 
> change for a future version. Maybe reasonable for v3.
>
> Andy
>
> *Dr Andy Buckley, Lecturer / Royal Society University Research Fellow*
> Particle Physics Experiment Group, University of Glasgow
>
> 	
>
> On Jul 17 2018, at 6:40 pm, David Yallup <david.yallup at cern.ch> wrote:
>
>
>     Hi All,
>
>     This is probably down to something I'm messing up but I was
>     wondering if
>     anyone has had any problems building the latest 2-6-x branch recently?
>
>     Specifically when I update to revision 6377 (current tip) I get a
>     series
>     of errors all pertaining to Rivet::Particles
>
>     In file included from ../../include/Rivet/AnalysisHandler.hh:6:0,
>                      from Run.cc:3:
>     ../../include/Rivet/Particle.hh: In constructor
>     ‘Rivet::Particle::Particle(const HepMC::GenParticle&)’:
>     ../../include/Rivet/Particle.hh:53:32: error: no matching function for
>     call to ‘Rivet::Particles::Particles()’
>              _momentum(gp.momentum())
>
>
>     This is updating from revision 6250 (also on the 2-6-x branch) where
>     everything built fine (which makes me think I'm doing something too
>     stupid!). It looks like my compiler disagrees with the changes from
>
>     https://rivet.hepforge.org/hg/rivet/rev/5b2baf1011f6?revcount=120
>
>
>     If others have had no trouble with recent builds of rivet I will
>     go back
>     to the drawing board but thought I would check with others first.
>
>     Thanks,
>     David
>
>
>
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