/usr/ is in libgkarrays-dev 2.1.0+dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/libGkArrays-2.1.0/
/usr/include/libGkArrays-2.1.0/binvect.hxx
/usr/include/libGkArrays-2.1.0/bitvector.cxx
/usr/include/libGkArrays-2.1.0/bitvector.hxx
/usr/include/libGkArrays-2.1.0/gkArrays.h
/usr/include/libGkArrays-2.1.0/gkArraysBuilder.h
/usr/include/libGkArrays-2.1.0/gkArraysTypes.h
/usr/include/libGkArrays-2.1.0/gkCFPSBuilder.h
/usr/include/libGkArrays-2.1.0/gkIFABuilder.h
/usr/include/libGkArrays-2.1.0/gkSABuilder.h
/usr/include/libGkArrays-2.1.0/kseq/
/usr/include/libGkArrays-2.1.0/kseq/kseq.h
/usr/include/libGkArrays-2.1.0/largebinvect.cxx
/usr/include/libGkArrays-2.1.0/largebinvect.hxx
/usr/include/libGkArrays-2.1.0/readsReader.h
/usr/lib/x86_64-linux-gnu/libGkArrays.so
/usr/include/libGkArrays-2.1.0/solArray.h
/usr/include/libGkArrays-2.1.0/sux/
/usr/include/libGkArrays-2.1.0/sux/macros.h
/usr/include/libGkArrays-2.1.0/sux/popcount.h
/usr/include/libGkArrays-2.1.0/sux/rank9b.h
/usr/include/libProgressBar-1.2.0/
/usr/include/libProgressBar-1.2.0/progressBar.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libGkArrays.a
/usr/lib/x86_64-linux-gnu/libProgressBar.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libGkArrays-2.1.0.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/libProgressBar-1.2.0.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libgkarrays-dev/
/usr/share/doc/libgkarrays-dev/copyright
/usr/include/libGkArrays
/usr/include/libProgressBar
/usr/lib/x86_64-linux-gnu/libProgressBar.so
/usr/lib/x86_64-linux-gnu/pkgconfig/libGkArrays.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/libProgressBar.pc
/usr/share/doc/libgkarrays-dev/changelog.Debian.gz