Update to FastjetContrib v1.030

The version of fjcontrib is updated from 1.029 to 1.030. This is a minor change to the fastjetcontrib version. Compilation and linking was checked against the current master athena version.

Tagging also JIRA (ATLJETMET-783)

eventually will be wanted for use in 21.2

Hi @akraszna, do I need to do anything special for this to enter the pipeline?

No, this looks fine, I was just not finding any time recently to look at this repository...

merged

mentioned in commit 4c828828

Hi @akraszna - Can you provide some guidance on how to use this updated version of this external? I am trying to follow these two sources :

• https://twiki.cern.ch/twiki/bin/view/AtlasComputing/SoftwareTutorialAnalysisInGitReleases
• https://gitlab.cern.ch/akraszna/GitAnalysisTest1 But am having difficulty parsing the necessary modifications to my packages CMakeLists.txt file.

I feel like this is necessary since this upgrade now lives in a version of atlasexternals that is not yet in a release but its not clear when that will happen and we would like to start developing. So my hope was to include atlas externals as a submodule and then use a package_filters.txt to selectively compile FastJet and FastJetContrib from this local clone of atlasexternals.

However, I am continually getting a

Scanning dependencies of target testRun_fjcontrib
[ 94%] Building CXX object testrun/CMakeFiles/testRun_fjcontrib.dir/main.cxx.o
/afs/cern.ch/work/m/meehan/public/MyTest/LocalFastJetContribExample/testrun/main.cxx:12:48: fatal error: fastjet/contrib/RecursiveSoftDrop.hh: No such file or directory
 #include "fastjet/contrib/RecursiveSoftDrop.hh"
                                                ^
compilation terminated.
make[2]: *** [testrun/CMakeFiles/testRun_fjcontrib.dir/main.cxx.o] Error 1
make[1]: *** [testrun/CMakeFiles/testRun_fjcontrib.dir/all] Error 2
make: *** [all] Error 2

error, indicating to me that the path to the includes is still pointing to the central ATLASExternals. This is the case when I print the include and library paths for FastJetContrib

-- PrintVariable FASTJETCONTRIB_INCLUDE_DIRS is: /cvmfs/atlas.cern.ch/repo/sw/software/21.2/AnalysisBaseExternals/21.2.4/InstallArea/x86_64-slc6-gcc62-opt/include
-- PrintVariable FASTJETCONTRIB_LIBRARIES is: /cvmfs/atlas.cern.ch/repo/sw/software/21.2/AnalysisBaseExternals/21.2.4/InstallArea/x86_64-slc6-gcc62-opt/lib/libRecursiveTools.a

but I can't determine how to include them properly.

I think it has something to do with using the CONFIG version of find_packages() instead of the MODULE version which it seems like it currently uses, but I am failing to determine how to properly use this.

I apologize if this is not the right forum for this question, I can send a mail. I just thought it would here be attached to an appropriate GitLab discussion. Once I get this, I will be sure to document it on the JSV page.