Am 27.08.2008 um 10:55 schrieb Daniel Jacobowitz:

> On Wed, Aug 27, 2008 at 10:45:49AM -0300, Thiago Jung Bauermann wrote:
>> On Wed, 2008-08-27 at 08:55 -0300, Dr. Rolf Jansen wrote:
>>> Is there a global way to find out at compile-time at the build or  
>>> host
>>> system the ptr-size and the long-size of the configured target
>>> machine, something like size_attarget_of()?
>>
>> It's not enough to do that at compile time, since some targets  
>> support
>> running both 32-bit and 64-bit programs (e.g., ppc64-linux). You can
>> check at runtime, if you have a struct gdbarch nearby:
>
> Not in arch-independent code:
>
>>  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
>
> since tdep is Target-DEPendent.  But you can use the TYPE_LENGTH of
> builtin types; see e.g. gnu-v3-abi.c.

Thiago and Daniel, many thanks for your reply. I applied the proposal  
of Daniel to my working copy of objc-lang.c.

Best regards

Rolf Jansen