[Rivet] Python, Rivet 1.20, CERN AFS, LXBATCH

[Andy Buckley]

On 26/03/10 17:55, Ben Waugh wrote:
> On 26/03/10 16:34, Frank Siegert wrote:
>> We stopped bundling them because it wasn't necessary anymore: Without all
>> the HepMC complications, SWIG worked just fine even on SL4. Of course I
>> wasn't aware of the gcc 4.4 non-compatibility of that SWIG version. If
>> somebody provides/uses a gcc 4.4 SW environment, shouldn't this also
>> include an updated SWIG that would then be used? So maybe that problem
>> should rather be fixed in CERN TH's software setup.
> 
> I had the same problem with gcc 4.3, which is the version favoured by
> the LHC experiments, so I think this problem is likely to be more
> widespread than just CERN TH.
> 
> Attached for the benefit of doubters are the script I just ran to
> reproduce the problem, and the output thereof.

Ah, so it seems to be a problem with GCC 4 in general. Which is really
strange since I've built Rivet several times on SLC5 GCC43 using the
bootstrap script. Maybe it should be reported to LCG AA.

I did notice this line:

checking for g++...
/afs/cern.ch/sw/lcg/contrib/gcc/4.3.2p1/x86_64-slc5-gcc34-opt/bin/g++

I don't quite understand these combinations: this looks like a copy of
GCC4.3.2, built via GCC3.4... huh? I always use the gcc43 LCG tag
version of the GCC43 setup script... not sure if that makes a
difference, but I've not seen this error before on GCC4.3.

Either way, we have techie things to sort out...

Andy

-- 
Dr Andy Buckley
SUPA Advanced Research Fellow
Particle Physics Experiment Group, University of Edinburgh