/usr/ is in libgssdp-1.0-dev 0.14.14-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/gssdp-1.0.pc
/usr/lib/x86_64-linux-gnu/libgssdp-1.0.a
/usr/include/
/usr/include/gssdp-1.0/
/usr/include/gssdp-1.0/libgssdp/
/usr/include/gssdp-1.0/libgssdp/gssdp-error.h
/usr/include/gssdp-1.0/libgssdp/gssdp-client.h
/usr/include/gssdp-1.0/libgssdp/gssdp-resource-browser.h
/usr/include/gssdp-1.0/libgssdp/gssdp.h
/usr/include/gssdp-1.0/libgssdp/gssdp-resource-group.h
/usr/share/
/usr/share/gir-1.0/
/usr/share/gir-1.0/GSSDP-1.0.gir
/usr/share/doc/
/usr/share/doc/libgssdp-1.0-dev/
/usr/share/doc/libgssdp-1.0-dev/copyright
/usr/share/vala/
/usr/share/vala/vapi/
/usr/share/vala/vapi/gssdp-1.0.deps
/usr/share/vala/vapi/gssdp-1.0.vapi
/usr/lib/x86_64-linux-gnu/libgssdp-1.0.so
/usr/share/doc/libgssdp-1.0-dev/NEWS.gz
/usr/share/doc/libgssdp-1.0-dev/AUTHORS
/usr/share/doc/libgssdp-1.0-dev/changelog.Debian.gz
/usr/share/doc/libgssdp-1.0-dev/README