/usr/include/geocode-glib-1.0/ is in libgeocode-glib-dev 3.25.4.1-4.
This file is owned by root:root, with mode 0o755.
..
/usr/include/geocode-glib-1.0/geocode-glib/
/usr/include/geocode-glib-1.0/geocode-glib/geocode-backend.h
/usr/include/geocode-glib-1.0/geocode-glib/geocode-bounding-box.h
/usr/include/geocode-glib-1.0/geocode-glib/geocode-enum-types.h
/usr/include/geocode-glib-1.0/geocode-glib/geocode-error.h
/usr/include/geocode-glib-1.0/geocode-glib/geocode-forward.h
/usr/include/geocode-glib-1.0/geocode-glib/geocode-glib.h
/usr/include/geocode-glib-1.0/geocode-glib/geocode-location.h
/usr/include/geocode-glib-1.0/geocode-glib/geocode-mock-backend.h
/usr/include/geocode-glib-1.0/geocode-glib/geocode-nominatim.h
/usr/include/geocode-glib-1.0/geocode-glib/geocode-place.h
/usr/include/geocode-glib-1.0/geocode-glib/geocode-reverse.h