Bruno Haible <br...@clisp.org> writes:
> Po Lu wrote:
>> Unfortunately, I've got the same Sun C that you do.
>
>> Could you show the preprocessed source for a call to `offsetof' on your
>> system? I have a feeling stddef.h on this machine is somehow wrong.
>
> In your preprocessed output you had:
>
> enum { ABBR_SIZE_MIN = DEFAULT_MXFAST - ( ( size_t ) ( & ( ( ( struct
> tm_zone * ) ( ( void * ) 0 ) ) -> abbrs ) ) ) };
>
> Whereas I get in "cc -g3 -O -DHAVE_CONFIG_H -I. -I..
> -DGNULIB_STRICT_CHECKING=1 -g -E time_rz.c":
>
> enum { ABBR_SIZE_MIN = DEFAULT_MXFAST - ( size_t ) ( & ( ( ( struct tm_zone
> * ) 0 ) -> abbrs ) ) };
>
> So, indeed, it's either the offsetof or the NULL macro.
>
> On my side, gnulib's stddef.h does not define these, but includes
> /usr/include/stddef.h.
> /usr/include/stddef.h does not define these, but includes
> /usr/include/iso/stddef_iso.h.
> The latter has
>
> #define offsetof(s, m) (size_t)(&(((s *)0)->m))
>
> and
>
> #ifndef NULL
> #if defined(_LP64)
> #define NULL 0L
> #else
> #define NULL 0
> #endif
> #endif
>
> How does it look on your side?
Here, it looks like:
#define offsetof(s, m) ((size_t)(&(((s *)NULL)->m)))
and:
#ifndef NULL
#define NULL ((void *)0)
#endif /* NULL */
I will have the system maintainer look into this.
I think someone has been making incorrect changes to this machine.
Thanks.
