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Re: Warn: non-POSIX variable name

From: Andreas Schwab
Subject: Re: Warn: non-POSIX variable name
Date: Tue, 19 Aug 2008 10:24:17 +0200
User-agent: Gnus/5.110009 (No Gnus v0.9) Emacs/22.2 (gnu/linux)

Brian Dessent <address@hidden> writes:

> The difference with this method is that the values are computed once
> when configure is run, and then substituted into the Makefile when it is
> generated after configure has completed.  When you use $(shell ...) the
> value is not computed until you run make, and the result is not stored
> anywhere so it is recomputed each time that make is run.

Even worse, it is recomputed each time the variable is _used_, ie. for
every compilation job started by make.


Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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