See e.g
https://lhcb-nightlies.cern.ch/logs/build/nightly/lhcb-master/990/x86_64-centos7-gcc9-opt/Analysis/
https://lhcb-nightlies.cern.ch/logs/build/nightly/lhcb-master/990/x86_64-centos7-clang8-opt/Analysis/