make: Multiple targets created by single rule vs parallel make

From	Philipp Klaus Krause <pkk@spth.de>
Newsgroups	comp.programming
Subject	make: Multiple targets created by single rule vs parallel make
Date	2020-01-23 15:00 +0100
Organization	solani.org
Message-ID	<r0c8ue$eui$1@solani.org> (permalink)

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In a Makefile, I have one rule that creates multiple targets, using the
&: feature of GNU make.

However, if I use make -j, the rule is still executed as many times as
there are targets. How can I avoid that without affecting other rules?

Philipp

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make: Multiple targets created by single rule vs parallel make Philipp Klaus Krause <pkk@spth.de> - 2020-01-23 15:00 +0100
  Re: make: Multiple targets created by single rule vs parallel make David Brown <david.brown@hesbynett.no> - 2020-01-23 15:31 +0100
    Re: make: Multiple targets created by single rule vs parallel make Philipp Klaus Krause <pkk@spth.de> - 2020-01-29 11:02 +0100
  Re: make: Multiple targets created by single rule vs parallel make Philipp Klaus Krause <pkk@spth.de> - 2020-01-29 13:43 +0100
    Re: make: Multiple targets created by single rule vs parallel make David Brown <david.brown@hesbynett.no> - 2020-01-29 14:03 +0100
  Re: make: Multiple targets created by single rule vs parallel make Härra Ramob <hrramob@gmail.com> - 2022-01-05 00:27 -0800

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