Re: Incorrect result with GMP 4.2.4 under Mac OS X (PowerPC)

[Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>]

On Mon, Mar 09, 2009 at 02:33:31PM +0100, Vincent Lefevre wrote:
> On 2009-03-09 10:06:07 +0100, Karim Belabas wrote:
> > I guess this is the problem here. I'll download GMP-4.2.4 later today
> > and see what changed.
> 
> Make sure you test with ABI=mode32. The gmp.h file should contain:
> 
> #define _LONG_LONG_LIMB 1
> 
> because the 32-bit ABI has 32-bit long's and GMP uses 64-bit limbs
> for efficiency reasons.

In any case, PARI is not going to work if the above condition is not
fullfilled:

 sizeof(mp_limb_t)==sizeof(long)==sizeof(long*)

so as far as I understand that precludes
#define _LONG_LONG_LIMB 1

Cheers,
Bill.