This is just to inform that after ROOT6.20 I was getting the following message during compilation.
[ 69%] generating: /home/jgalan/git/REST_v2/build/rootdict/CINT_TRestGeant4AnalysisProcess.cxx with /home/jgalan/git/REST_v2/source/processes/analysis/inc/TRestGeant4AnalysisProcess.h;/home/jgalan/git/REST_v2/build/rootdict/TRestGeant4AnalysisProcess_Linkdef.h
warning: Please remove the deprecated flag -c.
I have then proceeded to remove the -c flag from it. This is from ROOT6.20 onwards, I imagine this -c flag was not important for previous ROOT versions?