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Re: "make -jN" requires mechanical changes to a Makefile

From: Bruno Haible
Subject: Re: "make -jN" requires mechanical changes to a Makefile
Date: Sun, 12 May 2019 23:37:15 +0200
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Henrik Carlqvist wrote:
> Example with one rule creating 4 files:
> all : copy1 
> copy1: Makefile
>         install -c -m 644 Makefile copy1
>         install -c -m 644 Makefile copy2
>         install -c -m 644 Makefile copy3
>         install -c -m 644 Makefile copy4

I think the "representative" file should be copy4 here, because it's the one
that gets created last.

Otherwise, when the user interrupts "make" after copy1 was created but before
copy2, copy3, copy4 are created, and then retries "make" again, the second
'make' invocation will fail somewhere when it references copy2...copy4.


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