Brian Dessent <[EMAIL PROTECTED]> 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.

-- 
Andreas Schwab, SuSE Labs, [EMAIL PROTECTED]
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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"And now for something completely different."


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