Re: AC_CHECK_SIZEOF(char) should warn at autoconf time

[Bernd Jendrissek]

On Sat, Apr 26, 2008 at 8:00 AM, Zack Weinberg <address@hidden> wrote:
> 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".

But not "char *" or "char [20]".

>  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).

There's a lot of "foo * sizeof (char)" floating around too - in C
source.  Not even with a typedef obscuring the char-ness.