How versioned build_depend works?

edit

Inspired by this thread, I'm trying to utilize version_gte defined in REP-0127. I created an empty package beginner_tutorials from a tutorial, then placed in package.xml:

  <build_depend version_gte="1.10.3" version_lt="2.0">roscpp</build_depend>

where $ rosversion roscpp returns 1.10.2, expecting build would fail. But catkin_make-ing (tried install too) doesn't not even yield warning and just passed normally. Am I missing something?

Update) Answer from @Dirk Thomas gong something in me, and it was actually the following that was missing.

catkin_package(
  CATKIN_DEPENDS roscpp
)