Problem installing delphes 3.2.0 using make

[jakoblundst]

Hi,
When I try to install delphes I get the following error message:

~/MG5_aMC_v2_7_2/Delphes-3.2.0$ make
>> Compiling tmp/external/ExRootAnalysis/ExRootAnalysisDict.cc
In file included from /home/jakob/root/include/ROOT/TIOFeatures.hxx:19:0,
                 from /home/jakob/root/include/TTree.h:30,
                 from /home/jakob/root/include/TChain.h:24,
                 from external/ExRootAnalysis/ExRootTreeReader.h:14,
                 from tmp/external/ExRootAnalysis/ExRootAnalysisDict.cc:12:
/usr/include/c++/7/sstream:300:7: error: ‘struct std::__cxx11::basic_stringbuf<_CharT, _Traits, _Alloc>::__xfer_bufptrs’ redeclared with different access
       struct __xfer_bufptrs
       ^~~~~~
Makefile:2004: recipe for target 'tmp/external/ExRootAnalysis/ExRootAnalysisDict.o' failed
make: *** [tmp/external/ExRootAnalysis/ExRootAnalysisDict.o] Error 1

Not sure which type this error falls into. What do I do?

[Pavel Demin]

Please provide more details about your setup. What is the ROOT version, how ROOT was installed, what is the OS version?

Looking at the error message, I'd say that something is wrong with the ROOT installation.

[jakoblundst]

I using ROOT 6.2.0 on ubuntu 18. I installed ROOT using by downloading the binary and :

sudo apt-get install git dpkg-dev make g++ gcc binutils libx11-dev libxpm-dev \
        libxft-dev libxext-dev
tar -xf root_v6.20.02.Linux-ubuntu14-x86_64-gcc7.5.tar.gz
echo source ~/root/bin/thisroot.sh >> ~/.bashrc

then I used

source <path way>/bin/thisroot.sh

to get delphes to "see" ROOT.

[Pavel Demin]

Thanks for the information.

tar -xf root_v6.20.02.Linux-ubuntu14-x86_64-gcc7.5.tar.gz

The name of the .tar.gz file looks strange. Isn't it root_v6.20.02.Linux-ubuntu18-x86_64-gcc7.5.tar.gz?

Anyway, I've just downloaded ROOT 6.20 for Ubuntu 18 from ​this link and tried to build Delphes 3.2.0 and 3.4.2.

With Delphes 3.2.0, I can reproduce the error message. A workaround is to copy Delphes-3.4.2/doc/genMakefile.tcl to Delphes-3.2.0/doc/genMakefile.tcl and rerun ./configure. Then there is a problem while compiling classes/DelphesFormula.cc that I don't know how to solve easily.

I can build Delphes 3.4.2 without problem. So, the easiest solution would be to switch to Delphes 3.4.2.

[jakoblundst]

Replying to pavel:

Thanks for the information.

tar -xf root_v6.20.02.Linux-ubuntu14-x86_64-gcc7.5.tar.gz

The name of the .tar.gz file looks strange. Isn't it root_v6.20.02.Linux-ubuntu18-x86_64-gcc7.5.tar.gz?

Anyway, I've just downloaded ROOT 6.20 for Ubuntu 18 from ​this link and tried to build Delphes 3.2.0 and 3.4.2.

With Delphes 3.2.0, I can reproduce the error message. A workaround is to copy Delphes-3.4.2/doc/genMakefile.tcl to Delphes-3.2.0/doc/genMakefile.tcl and rerun ./configure. Then there is a problem while compiling classes/DelphesFormula.cc that I don't know how to solve easily.

I can build Delphes 3.4.2 without problem. So, the easiest solution would be to switch to Delphes 3.4.2.

Ok, thanks.

[Pavel Demin]

Looks like copying DelphesFormula and DelphesTF2 from Delphes 3.3.0 to Delphes 3.2.0 solves the remaining compilation problem. Here is a link to Delphes 3.2.1 that can be built with ROOT 6.20 on Ubuntu 18:

​http://cp3.irmp.ucl.ac.be/downloads/Delphes-3.2.1.tar.gz

For information, Delphes 3.3.0 was the first version compatible with ROOT 6.