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Re: Deferred->immediate variable reassignment trick.
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From: |
Brian J. Murrell |
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Subject: |
Re: Deferred->immediate variable reassignment trick. |
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Date: |
Wed, 21 Jun 2023 11:55:14 -0400 |
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User-agent: |
Evolution 3.48.3 (3.48.3-1.fc38) |
On Wed, 2023-06-21 at 11:47 -0400, Paul Smith wrote:
> On Wed, 2023-06-21 at 08:31 -0700, Kaz Kylheku wrote:
> > If I just have this:
> >
> > IMPORTANT_VAR := $(shell sh -c "echo calculate; echo executed
> > 1>&2")
> >
> > and do "make IMPORTANT_VAR=alternative", I still see "executed"
> > on standard output.
>
> IMO that is a bug and it should be reported as such on Savannah.
Is it? Isn't the functionality of not overriding a variable value set
on the make command line with a value in the Makefile what the ?=
assignment operator is for?
Cheers,
b.
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