Fix stand-alone compilation of public headers
This is needed to be able to build the headers in stand-alone mode, see lhcb-core/LHCbNightlyConf!984 (merged)
Part of a group: !3992 (merged) Rec!3331 (merged)
Edited by Marco Clemencic
Please be advised that registry.cern.ch registry (Registry Service) will be unavailable next Monday, March 10th starting at 08:00h (Geneva time) for a short period of time. This may cause temporary disruptions to your workflows. Further information: OTG0154905
This is needed to be able to build the headers in stand-alone mode, see lhcb-core/LHCbNightlyConf!984 (merged)
Part of a group: !3992 (merged) Rec!3331 (merged)