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Re: AC_CACHE_CHECK and complex tests

From: Paul Eggert
Subject: Re: AC_CACHE_CHECK and complex tests
Date: Sat, 25 Feb 2006 00:03:50 -0800
User-agent: Gnus/5.1007 (Gnus v5.10.7) Emacs/21.4 (gnu/linux)

Ralf Wildenhues <address@hidden> writes:

> The patch below adds an example of how such a test may be written
> properly.  I'm a bit uncertain as to whether it should be applied:
> we would constrain Autoconf in a way that we could not possibly know
> the names of the other cache variables, by documenting this.

Yes, I tend to agree.  Let's not apply that part of the patch for now.
(The quoting fixes are fine.)

If you want to recommend something, I suppose you could recommend
several calls to AC_CACHE_CHECK, one for each variable; the first
(slow) one sets the "main" cache variable and the others (which are
fast) key off its value.

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