Merge branch 'cmake.LArG4ShowerLibSvc-20200617' into 'master'

LArG4ShowerLibSvc: cmake fixes

See merge request atlas/athena!33821

LArCalorimeter/LArG4/LArG4ShowerLibSvc/CMakeLists.txt

@@ -21,15 +21,20 @@ find_package( Geant4 )
 find_package( ROOT COMPONENTS Core Tree MathCore Hist RIO pthread )
 find_package( XercesC )
 
+atlas_add_library( LArG4ShowerLibSvcLib
+                   LArG4ShowerLibSvc/*.h
+                   INTERFACE
+                   PUBLIC_HEADERS LArG4ShowerLibSvc
+                   LINK_LIBRARIES GaudiKernel LArG4Code AthenaBaseComps )
+
 # Component(s) in the package:
 atlas_add_component( LArG4ShowerLibSvc
                      src/*.cxx
                      src/components/*.cxx
                      INCLUDE_DIRS ${ROOT_INCLUDE_DIRS} ${XERCESC_INCLUDE_DIRS} ${GEANT4_INCLUDE_DIRS} ${CLHEP_INCLUDE_DIRS}
-                     LINK_LIBRARIES ${ROOT_LIBRARIES} ${XERCESC_LIBRARIES} ${GEANT4_LIBRARIES} ${CLHEP_LIBRARIES} AthenaBaseComps GaudiKernel LArG4Code AthenaKernel LArG4ShowerLib PathResolver )
+                     LINK_LIBRARIES ${ROOT_LIBRARIES} ${XERCESC_LIBRARIES} ${GEANT4_LIBRARIES} ${CLHEP_LIBRARIES}  LArG4ShowerLibSvcLib AthenaKernel LArG4ShowerLib PathResolver )
 
 # Install files from the package:
-atlas_install_headers( LArG4ShowerLibSvc )
 atlas_install_python_modules( python/*.py )
 atlas_install_scripts( share/*.py )