devel_api_header_files = \
$(devel_api_src_dir)/direction-enums.h
+devel_api_visuals_header_files = \
+ $(devel_api_src_dir)/visuals/image-visual-properties-devel.h
+
devel_api_controls_header_files = \
$(devel_api_src_dir)/controls/control-depth-index-ranges.h \
$(devel_api_src_dir)/controls/control-devel.h \