develapitextdir = $(develapidir)/text
develapivisualfactorydir = $(develapidir)/visual-factory
develapivisualsdir = $(develapidir)/visuals
+develapidragdropdir = $(develapidir)/drag-drop-detector
# devel headers
develapi_HEADERS = $(devel_api_header_files)
develapitransitioneffects_HEADERS = $(devel_api_transition_effects_header_files)
develapitextselectionpopup_HEADERS = $(devel_api_text_controls_header_files)
develapitext_HEADERS = $(devel_api_text_header_files)
+develapidragdrop_HEADERS = $(devel_api_drag_and_drop_detector_header_files)
# public api source
publicapidir = $(topleveldir)/public-api