/usr/ is in libgcab-dev 0.7-2+deb9u1.
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/usr/include/
/usr/include/libgcab-1.0/
/usr/include/libgcab-1.0/libgcab/
/usr/include/libgcab-1.0/libgcab/gcab-cabinet.h
/usr/include/libgcab-1.0/libgcab/gcab-enums.h
/usr/include/libgcab-1.0/libgcab/gcab-file.h
/usr/include/libgcab-1.0/libgcab/gcab-folder.h
/usr/include/libgcab-1.0/libgcab.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libgcab-1.0.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libgcab-dev/
/usr/share/doc/libgcab-dev/changelog.Debian.gz
/usr/share/doc/libgcab-dev/copyright
/usr/share/gir-1.0/
/usr/share/gir-1.0/GCab-1.0.gir
/usr/share/vala/
/usr/share/vala/vapi/
/usr/share/vala/vapi/libgcab-1.0.vapi
/usr/lib/x86_64-linux-gnu/libgcab-1.0.so