/usr/ is in gr-fcdproplus 0.0.1.1.2c80be-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/gnuradio/
/usr/share/gnuradio/grc/
/usr/share/gnuradio/grc/blocks/
/usr/share/gnuradio/grc/blocks/fcdproplus_fcdproplus.xml
/usr/share/doc/
/usr/share/doc/gr-fcdproplus/
/usr/share/doc/gr-fcdproplus/copyright
/usr/lib/
/usr/lib/python2.7/
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/fcdproplus/
/usr/lib/python2.7/dist-packages/fcdproplus/_fcdproplus_swig.so
/usr/lib/python2.7/dist-packages/fcdproplus/fcdproplus_swig.py
/usr/lib/python2.7/dist-packages/fcdproplus/__init__.py
/usr/lib/x86_64-linux-gnu/
/usr/include/
/usr/include/fcdproplus/
/usr/include/fcdproplus/api.h
/usr/include/fcdproplus/fcdproplus/
/usr/include/fcdproplus/fcdproplus/swig/
/usr/include/fcdproplus/fcdproplus/swig/fcdproplus_swig.i
/usr/include/fcdproplus/fcdproplus/swig/fcdproplus_swig_doc.i
/usr/include/fcdproplus/fcdproplus.h
/usr/share/doc/gr-fcdproplus/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/libgnuradio-fcdproplus.so