ifeq ($(QED),TRUE)
    include $(WARPX_HOME)/Source/Particles/ElementaryProcess/QEDInternals/Make.package
    VPATH_LOCATIONS   += $(WARPX_HOME)/Source/Particles/ElementaryProcess/QEDInternals/
endif

VPATH_LOCATIONS   += $(WARPX_HOME)/Source/Particles/ElementaryProcess/