This will probably raise the dev-pkg-without-shlib-symlink Lintian warning, that
says:

  The symlink is generally expected in the same directory as the library itself.
  The major exception to this rule is if the library is installed in (or
  beneath) /lib, where the symlink must be installed in the same dir beneath
  /usr.

But I could not figure out where this exception comes from: Lintian refers to
the Debian Policy Manual section 8.4 (Development files), which does not mention
any such exception. This matter was raised in #843932.