Note that run-time dependencies that are only recommended by __TARGET_PKG__ may not yet be installed at the time __TARGET_PKG__ is tested, as there is no explicit dependency link between them and in that case most CPAN clients default to install prerequisites in alphabetic order.
However, they will be installed when __TASK_PKG__ is, thus will be available when you actually use __TARGET_PKG__.
Note that run-time dependencies that are only recommended by __TARGET_PKG__ may not yet be installed at the time __TARGET_PKG__ is tested, as there is no explicit dependency link between them and in that case most CPAN clients default to install prerequisites in alphabetic order.
However, they will be installed when __TASK_PKG__ is, thus will be available when you actually use __TARGET_PKG__.