- # Needs to update whenever a page is added or removed, so
- # register a dependency.
- add_depends($params{page}, $params{pages});
+ # Needs to update whenever a page is added or removed.
+ add_depends($params{page}, $params{pages}, exists => 1);
+ # Also needs to update when any page with links changes,
+ # in case the links point to our displayed pages.
+ # (Among limits this further.)
+ add_depends($params{page}, exists $params{among} ? $params{among} : "*",
+ links => 1);