Re: Warn: non-POSIX variable name

[Andreas Schwab]

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.

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Andreas Schwab, SuSE Labs, address@hidden
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