Re: [PATCH nft 2/2] gmputil: turn mpz_printf into mpz_vfprintf to restore --with-mini-gmp

[Pablo Neira Ayuso <pablo@netfilter.org>]

On Wed, Nov 22, 2017 at 08:36:16PM +0100, Pablo Neira Ayuso wrote:
> 2535ba7006f2 ("src: get rid of printf") uses gmp_vfprintf() which
> doesn't exists in mini-gmp.c, this breaks compilation with --mini-gmp.
> 
> This patch implements poor man's gmp_vfprintf that takes one single
> argument which is what we need.
> 
> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
> ---
> @Phil: We're still hitting a compilation warning, since libnftables is
>        in place, it seems -Wno-sign-compare is ignored.

mini-gmp.c: In function ‘mpn_get_str_bits’:
mini-gmp.c:1176:17: warning: comparison between signed and unsigned
integer expressions [-Wsign-compare]
       if (shift >= GMP_LIMB_BITS && ++i < un)
                 ^
mini-gmp.c: In function ‘mpz_and’:
mini-gmp.c:1406:31: warning: comparison between signed and unsigned
integer expressions [-Wsign-compare]
 #define MPZ_REALLOC(z,n) ((n) > (z)->_mp_alloc   \
                               ^
mini-gmp.c:3650:8: note: in expansion of macro ‘MPZ_REALLOC’
   rp = MPZ_REALLOC (r, rn + rc);