Re: Fixing parallel make of libpq

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/
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