/usr/include/ is in libmeanwhile-dev 1.0.2-7.
This file is owned by root:root, with mode 0o755.
..
/usr/include/meanwhile/
/usr/include/meanwhile/mw_session.h
/usr/include/meanwhile/mw_channel.h
/usr/include/meanwhile/mw_error.h
/usr/include/meanwhile/mw_srvc_place.h
/usr/include/meanwhile/mw_message.h
/usr/include/meanwhile/mw_srvc_resolve.h
/usr/include/meanwhile/mw_srvc_store.h
/usr/include/meanwhile/mw_srvc_im.h
/usr/include/meanwhile/mw_cipher.h
/usr/include/meanwhile/mw_common.h
/usr/include/meanwhile/mw_srvc_aware.h
/usr/include/meanwhile/mw_srvc_conf.h
/usr/include/meanwhile/mw_srvc_dir.h
/usr/include/meanwhile/mw_srvc_ft.h
/usr/include/meanwhile/mw_service.h
/usr/include/meanwhile/mw_st_list.h