--- ppl-0.10.2/configure.orig	2010-08-04 21:48:19.000000000 -0400

 +++ ppl-0.10.2/configure	2010-08-04 21:50:04.000000000 -0400

 @@ -16443,6 +16443,10 @@

  #GMP version 4.1.3 or higher is required

  #endif

 +#ifndef BITS_PER_MP_LIMB

 +#define BITS_PER_MP_LIMB GMP_LIMB_BITS

 +#endif

 +

  int

  main() {

    std::string header_version;

 @@ -16469,11 +16473,11 @@

      return 1;

    }

 -  if (sizeof(mp_limb_t)*CHAR_BIT != GMP_LIMB_BITS

 -      || GMP_LIMB_BITS != mp_bits_per_limb) {

 +  if (sizeof(mp_limb_t)*CHAR_BIT != BITS_PER_MP_LIMB

 +      || BITS_PER_MP_LIMB != mp_bits_per_limb) {

      std::cerr

        << "GMP header (gmp.h) and library (ligmp.*) bits-per-limb mismatch:\n"

 -      << "header gives " << __GMP_BITS_PER_MP_LIMB << ";\n"

 +      << "header gives " << BITS_PER_MP_LIMB << ";\n"

        << "library gives " << mp_bits_per_limb << ".\n"

        << "This probably means you are on a bi-arch system and\n"

        << "you are compiling with the wrong header or linking with\n"