/usr/include/libdmapsharing-3.0/ is in libdmapsharing-3.0-dev 2.9.37-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/libdmapsharing-3.0/libdmapsharing/
/usr/include/libdmapsharing-3.0/libdmapsharing/daap-connection.h
/usr/include/libdmapsharing-3.0/libdmapsharing/daap-record.h
/usr/include/libdmapsharing-3.0/libdmapsharing/daap-share.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dacp-connection.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dacp-player.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dacp-share.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-connection.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-container-db.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-container-record.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-db.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-enums.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-gst-input-stream.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-md5.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-mdns-browser.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-mdns-publisher.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-record-factory.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-record.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-share.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-structure.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap-utils.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dmap.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dpap-connection.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dpap-record.h
/usr/include/libdmapsharing-3.0/libdmapsharing/dpap-share.h