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Re: Behaviour when using both "--dry-run" and "--always-make" together

From: Johan Persson
Subject: Re: Behaviour when using both "--dry-run" and "--always-make" together
Date: Sun, 06 Jun 2021 09:57:57 +0200
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On 2021-06-02 00:56, Karl Berry wrote:
Hi Johan,

    make --dry-run --always-make

I'm somehow amazed these two options work together at all. They seem
mutually unintelligible. In any case, it's the first time I've heard of
this, so I don't have a best (or any) practice to suggest. Sorry.
Maybe someone else here has some ideas.

Thanks for the reply. It turs out that things are even a bit worse.
I realized that it is actually enough to just have the "--always-make"
option in order to throw make into an endless loop with autotools
generated makefiles.

To avoid any issues that might exist in my setup I tried this by
rebuilding "make" itself from source from a couple of different versions
including the latest 4.3 version of make.

Some older versions of make (e.g. make v4.0) have different types of issues
with "--always-make" which makes it fail in slightly other ways but all
versions displays this looping behavior.

So I beleive the conclusion here is that "--always-make" is not really compatible with autotools at the moment (or perhaps self-referential makefiles in general?)


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