Make gmp-glue.c work in the case that GMP does define mpz_limbs_read and friends.

ChangeLog

 2013-03-07  Niels Möller  <nisse@lysator.liu.se>
 
+	* gmp-glue.c (mpz_limbs_cmp): Don't use PTR and SIZ macros.
+
 	* Makefile.in (aesdata, desdata, twofishdata, shadata, gcmdata)
 	(eccdata): Arrange for compiling these programs for running on the
 	build system, also when cross compiling everything else.

gmp-glue.c

@@ -111,7 +111,10 @@ mpz_roinit_n (mpz_ptr x, const mp_limb_t *xp, mp_size_t xs)
 int
 mpz_limbs_cmp (mpz_srcptr a, const mp_limb_t *bp, mp_size_t bn)
 {
-  mp_size_t an = SIZ (a);
+  mp_size_t an = mpz_size (a);
+  assert (mpz_sgn (a) >= 0);
+  assert (bn >= 0);
+
   if (an < bn)
     return -1;
   if (an > bn)
@@ -119,7 +122,7 @@ mpz_limbs_cmp (mpz_srcptr a, const mp_limb_t *bp, mp_size_t bn)
   if (an == 0)
     return 0;
 
-  return mpn_cmp (PTR(a), bp, an);
+  return mpn_cmp (mpz_limbs_read(a), bp, an);
 }
 
 /* Get a pointer to an n limb area, for read-only operation. n must be