mpfi-1.5.3-bp151.2.16

- Update to new upstream release 1.5.3
  * be compatible with MPFR version 4.0.0
- Changes introduced with 1.5.2
  * fix documentation of comparison functions
  * fix bug in mpfi_sub_fr
  * new symbols MPFI_VERSION_MAJOR, MPFI_VERSION_MINOR,
    MPFI_VERSION_PATCHLEVEL, and MPFI_VERSION_STRING in mpfi.h
  * detect availability of mpfr_z_sub, mpfr_z_div, and mpfr_q_sub
    and use a custom implementation for the ones not provided by
    MPFR (mpfr_z_sub appeared in MPFR 3.1.0, the other ones are
    used in tests only)
  * tadd_q does no more check overflow by default (required too
    much memory)
  * sign of zeros choice documented

- Initial package (version 1.5.1) for build.opensuse.org