On Mon, Sep 23, 2013 at 12:55:18PM -0500, Steve M. Robbins wrote: > Hello Bill, > > I'd like to understand what you believe is the bug.
Note that I set the severity to wishlist. > On Mon, Sep 23, 2013 at 07:02:41PM +0200, Bill Allombert wrote: > > > On x32, GMP set sizeof(mp_limb_t) to 8, see > > <http://buildd.debian-ports.org/status/fetch.php?pkg=gmp&arch=x32&ver=2%3A5.1.2%2Bdfsg-3&stamp=1379197327> > > Is 8 the wrong value? If so, any idead why the GMP unit tests don't fail? GMP can be configured to use either 4 or 8. Both are correct GMP-wise. (The same is true on standard i386, except using 8 requires the processor to support the x86_64 extension, which is already assumed on x32). > > However this is incompatible with software that requires > > sizeof(mp_limb_t)==sizeof(void*), > > like pari and gap, which then FTBFS on x32. > > Is this a bug in pari and gap or in gmp? Admittedly, this is a bug in pari and gap for having such requirement. However, it seems unlikely to be ever fixed, hence this report. Using 8 should result in a faster library, so this is a trade-off, even if I do not expect that people will use x32 for HPC. Cheers, Bill. -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
