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Re: [bug #60538] Environment variable overrides explicit assignment

From: Paul Smith
Subject: Re: [bug #60538] Environment variable overrides explicit assignment
Date: Thu, 06 May 2021 13:19:39 -0400
User-agent: Evolution 3.36.4-0ubuntu1

On Thu, 2021-05-06 at 17:11 +0000, Martin Dorey wrote:
> > The manual doesn't actually say that MAKEOVERRIDES is exported like
> MAKEFLAGS but I assume it is.
> I was going to just say that MAKEFLAGS would be expanded before being
> exported, and indeed it is, but, having tried it, the results aren't
> quite what I would have expected, even having just skimmed the
> section on MAKEOVERRIDES that Paul just cited.
> $ make TESTNAME=badger 2>&1 | grep MAKE
> ... eliding mentions of MAKE in my environment already...
> MAKEOVERRIDES=${-*-command-variables-*-}
> $ 
> So MAKEOVERRIDES is exported, though perhaps it doesn't need to be,
> but isn't expanded before being exported.

Without seeing your makefile I can't say what you're seeing but I don't
see it exported:

  $ echo 'all:;@echo "mo=$$MAKEOVERRIDES"' | make -f-

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