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Re: AC_CHECK_SIZEOF(char) should warn at autoconf time

From: Zack Weinberg
Subject: Re: AC_CHECK_SIZEOF(char) should warn at autoconf time
Date: Sat, 26 Apr 2008 02:00:58 -0400

On Sat, Apr 26, 2008 at 1:54 AM, Paul Eggert <address@hidden> wrote:
> "Zack Weinberg" <address@hidden> writes:
>  > Would it be possible for autoconf to notice when AC_CHECK_SIZEOF has
>  > been applied to one of these types and issue a warning?
>  Sure, autoconf could look for those textual patterns.
>  Also for "char unsigned", and for "char signed".
>  A simpler fix would be to simply document not to bother to do that.
>  One could argue that Autoconf should support the general case, and
>  also that the usage is entrenched now.  Or maybe Autoconf should just
>  set the size to be 1 without bothering to do anything at
>  configure-time?

Any or all of the above.  I'm for user education, though, which is why
I suggested the warning; I think that'll get more attention than a
note in the manual (though if you do do the warning, a more detailed
explanation in the manual would be good as well).


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