Updated mini-gmp from the gmp repository, latest change from 2017-07-23.

ChangeLog

+2017-09-09  Niels Möller  <nisse@lysator.liu.se>
+
+	* mini-gmp.c: Updated mini-gmp from the gmp repository, latest
+	change from 2017-07-23.
+	* mini-gmp.h: Likewise.
+
 2017-09-06  Niels Möller  <nisse@lysator.liu.se>
 
 	* hkdf.c (hkdf_expand): Eliminate a (signed) ssize_t variable, use

mini-gmp.h

 /* mini-gmp, a minimalistic implementation of a GNU GMP subset.
 
-Copyright 2011-2014 Free Software Foundation, Inc.
+Copyright 2011-2015 Free Software Foundation, Inc.
 
 This file is part of the GNU MP Library.
 
@@ -82,6 +82,7 @@ void mpn_copyd (mp_ptr, mp_srcptr, mp_size_t);
 void mpn_zero (mp_ptr, mp_size_t);
 
 int mpn_cmp (mp_srcptr, mp_srcptr, mp_size_t);
+int mpn_zero_p (mp_srcptr, mp_size_t);
 
 mp_limb_t mpn_add_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t);
 mp_limb_t mpn_add_n (mp_ptr, mp_srcptr, mp_srcptr, mp_size_t);
@@ -107,6 +108,9 @@ mp_limb_t mpn_rshift (mp_ptr, mp_srcptr, mp_size_t, unsigned int);
 mp_bitcnt_t mpn_scan0 (mp_srcptr, mp_bitcnt_t);
 mp_bitcnt_t mpn_scan1 (mp_srcptr, mp_bitcnt_t);
 
+void mpn_com (mp_ptr, mp_srcptr, mp_size_t);
+mp_limb_t mpn_neg (mp_ptr, mp_srcptr, mp_size_t);
+
 mp_bitcnt_t mpn_popcount (mp_srcptr, mp_size_t);
 
 mp_limb_t mpn_invert_3by2 (mp_limb_t, mp_limb_t);