dh-linktree - 0.9 main

Many developers bundle PHP or JavaScript libraries in the software that
they provide. The Debian packager must then replace those "embedded copies"
with symlinks to the packaged copy of those files. This operation is not
without risks. A version mismatch can be the source of bugs that are hard to
track.
.
dh_linktree is a tool that can assist you in this task. It can either
unconditionally install a symlink tree of a given directory at the place
of your choice, or it can only replace existing files with symlinks, or it
can only replace existing identical files with symlinks.