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From: David Engster <deng@randomsample.de>
To: Stephen Leake <stephen_leake@stephe-leake.org>
Cc: Alan Mackenzie <acm@muc.de>, Eli Zaretskii <eliz@gnu.org>,
	monnier@iro.umontreal.ca, emacs-devel@gnu.org
Subject: Re: Speeding up the bootstrap build - a quick hack.
Date: Fri, 21 Jan 2022 11:42:50 +0100	[thread overview]
Message-ID: <87sfthbc9h.fsf@randomsample> (raw)
In-Reply-To: <86k0etz91j.fsf@stephe-leake.org> (Stephen Leake's message of "Fri, 21 Jan 2022 02:18:32 -0800")

> Alan Mackenzie <acm@muc.de> writes:
>
>> This was surprisingly difficult to solve.  There appears to be no way in
>> make to set a variable depending on what the target is.
>
> target :: VARIABLE := "value"
> targ
> Sets VARIABLE to value only while executing target.
>
> I could not find the section in the make manual that says this, but it
> must be there somewhere - that's how I learned it :(.

It's called target-specific variables:

https://www.gnu.org/software/make/manual/html_node/Target_002dspecific.html

-David



  reply	other threads:[~2022-01-21 10:42 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-17 20:26 Speeding up the bootstrap build - a quick hack Alan Mackenzie
2022-01-17 20:55 ` Stefan Monnier
2022-01-18 11:56   ` Alan Mackenzie
2022-01-18 13:14     ` Stefan Monnier
2022-01-18 20:27       ` Alan Mackenzie
2022-01-18 20:48         ` Stefan Monnier
2022-01-19 11:50           ` Alan Mackenzie
2022-01-19 14:34             ` Stefan Monnier
2022-01-19 15:24               ` Stefan Monnier
2022-01-18 13:16     ` Robert Pluim
2022-01-18 14:04       ` Alan Mackenzie
2022-01-18 14:13         ` Robert Pluim
2022-01-18 14:24           ` Stefan Monnier
2022-01-18 14:35             ` Robert Pluim
2022-01-18 15:13               ` Robert Pluim
2022-01-18 16:50                 ` Eli Zaretskii
2022-01-18 16:09               ` Andrea Corallo
2022-01-18 18:36               ` Stefan Monnier
2022-01-18 14:05       ` Stefan Monnier
2022-01-18 14:18         ` Robert Pluim
2022-01-17 21:03 ` Lars Ingebrigtsen
2022-01-18  0:46 ` Po Lu
2022-01-18 14:17 ` Eli Zaretskii
2022-01-18 18:40   ` Stefan Monnier
2022-01-18 19:34     ` Eli Zaretskii
2022-01-18 20:28       ` Stefan Monnier
2022-01-18 20:35       ` Alan Mackenzie
2022-01-18 20:50         ` Stefan Monnier
2022-01-19 11:10       ` Alan Mackenzie
2022-01-19 11:46         ` Eli Zaretskii
2022-01-19 16:50           ` Alan Mackenzie
2022-01-19 17:03             ` Eli Zaretskii
2022-01-19 21:32               ` Alan Mackenzie
2022-01-20  9:25                 ` Robert Pluim
2022-01-20 11:35                   ` Alan Mackenzie
2022-01-20 13:18                     ` Robert Pluim
2022-01-20 14:54                       ` Robert Pluim
2022-01-20 18:48                         ` Alan Mackenzie
2022-01-20 22:29                           ` Stefan Monnier
2022-01-21  8:17                             ` Robert Pluim
2022-01-21 10:18                 ` Stephen Leake
2022-01-21 10:42                   ` David Engster [this message]
2022-01-21 10:51                   ` Robert Pluim
2022-01-24 19:43 ` Andrea Corallo
2022-01-24 19:54   ` Eli Zaretskii
2022-01-24 20:15     ` Andrea Corallo

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