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Re: [lmi] Sourcing a shell script in a make file

From: Greg Chicares
Subject: Re: [lmi] Sourcing a shell script in a make file
Date: Tue, 7 Apr 2020 14:23:28 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0

[Updating this historical documentation, to avoid confusion.]

On 2019-05-24 13:57, Greg Chicares wrote:
> [Paraphrase of a demonstration in git as of commit f93cd2fe1fc7,
> posted here as a handy, searchable reference. The full version
> in git contains 'echo' statements to show what's going on in
> detail, and offers a couple simple tests.]

Those tests were too simple, so a more robust technique was
introduced here:

commit a034d7f2cf61ce3146b7233dbd4b2da0b863a88c
Author: Gregory W. Chicares <address@hidden>
Date:   2020-04-02T21:37:00+00:00

    Fix defect exposed 20200402T1125Z: 'make' subtlety
    Variable assignments via $(eval include ...) take effect before
    recursive expansions on subsequent makefile lines, but not before
    immediate expansions and not before other makefiles are included.
    See commit 8b8a6608da8 of 20200402T1125Z for a demonstration.

The new technique is closer to the 'make' maintainer's
suggestion here:

Also see the voluminous earlier discussion in this thread:

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