On 2018-02-12 10:31:23 +0100, Torbjorn Granlund wrote: > Vincent Lefevre <vinc...@vinc17.net> writes: > > As written above, this is for C compilers. But GMP also has assembler > code. So, you need to provide an option that will affect the assembler > code. This is what ABI is for. > > That said, perhaps GMP might be improved to detect the ABI by a > simple parsing of $CFLAGS when provided by the user (in case values > like -m32 or -m64 are standard). The reason is that the user could > have a generic CFLAGS for various software, while AFAIK, ABI is > specific to GMP. > > That would be nice but unfortunately is not going to work. > > We use "ABI" in a somewhat non-standard way. It mainly refers to the > limb size. The same exact compiler flags might be correct for several > choices of "ABI".
So, if I understand correctly, this means that if the user chooses to set -m32 in CFLAGS, he might have to try different ABI values before finding one that works (because -m32 does not necessarily imply 32-bit limbs). This is not nice. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon) _______________________________________________ gmp-bugs mailing list gmp-bugs@gmplib.org https://gmplib.org/mailman/listinfo/gmp-bugs
