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Re: [bug #64472] $(CP) is an empty string

From: Henrik Carlqvist
Subject: Re: [bug #64472] $(CP) is an empty string
Date: Wed, 26 Jul 2023 11:43:39 +0200

On Wed, 26 Jul 2023 01:37:11 -0400 (EDT)
> ... I see that rm, which was on the list of directly invokable utilities
> with cp, nonetheless has an RM namesake, which contains the very much
> conventional, but non-obvious and misleading, -f.  AR is there alright but,
> had the OP chosen INSTALL as their example, there'd be more of a case to
> answer.  A cross-reference to
> https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html
> might help to explain what can be relied upon without Autotools or such.

If you want to use $(CP) or $(INSTALL) in your Makefile you will need to
assign those variables yourself. Doing so might be a good idea the day when
someonne wants to port your Makefile to another system, maybe "cp" is called
something like "copy" on that system. If so, it is a lot easier to only change
the assignment of $(CP) at a single row in the Makefile than to replace "cp"
in several rules.

regards Henrik

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