/usr/ is in libvala-0.18-dev 0.18.1-0ubuntu11.
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/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libvala-0.18.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libvala-0.18-dev/
/usr/share/doc/libvala-0.18-dev/copyright
/usr/include/
/usr/include/vala-0.18/
/usr/include/vala-0.18/vala.h
/usr/include/vala-0.18/valacodegen.h
/usr/include/vala-0.18/valaccode.h
/usr/include/vala-0.18/valagee.h
/usr/lib/x86_64-linux-gnu/libvala-0.18.so
/usr/share/doc/libvala-0.18-dev/README
/usr/share/doc/libvala-0.18-dev/NEWS.gz
/usr/share/doc/libvala-0.18-dev/THANKS
/usr/share/doc/libvala-0.18-dev/AUTHORS
/usr/share/doc/libvala-0.18-dev/changelog.Debian.gz