Re: ecpg compile error on AIX

>    In GNU C, addition and subtraction operations are supported on
>    pointers to `void' and on pointers to functions.  This is done by
>    treating the size of a `void' or of a function as 1.
> 
>    A consequence of this is that `sizeof' is also allowed on `void' and
>    on function types, and returns 1.
> 
>    The option `-Wpointer-arith' requests a warning if these extensions
>    are used.
> 
> It occurs to me that we ought to add -Wpointer-arith to our standard
> gcc options, so that this sort of mistake will be caught sooner in
> future.

I added this to my Makefile.custom.

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