On 2020-01-09 15:17, Tom Lane wrote:
> 1) Changing from an "|"-style dependency to a plain dependency seems
> like a semantics change. I've never been totally clear on the
> difference though. I think Peter introduced our use of the "|" style,
> so maybe he can comment.
If you have a phony target as a prerequisite of a real-file target, you
should make that an order-only ("|") prerequisite. Otherwise the
real-file target rules will *always* be run, on account of the phony
target prerequisite.
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
