Revert "Remove gmp from AOS"

This reverts commit f37c97684f0910a3f241394549392f00145ab0f7.

We need gmp for SymEngine for symbolicmanipultion in C++

Change-Id: Ia13216d1715cf96944f7b4f422b7a799f921d4a4
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/third_party/gmp/mini-gmp/tests/t-scan.c b/third_party/gmp/mini-gmp/tests/t-scan.c
new file mode 100644
index 0000000..39b1f35
--- /dev/null
+++ b/third_party/gmp/mini-gmp/tests/t-scan.c
@@ -0,0 +1,90 @@
+/*
+
+Copyright 2012, Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <limits.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "testutils.h"
+
+#define MAXBITS 400
+#define COUNT 10000
+
+void
+testmain (int argc, char **argv)
+{
+  unsigned i;
+  mpz_t a;
+  mp_bitcnt_t b, res, ref;
+
+  mpz_init (a);
+
+  for (i = 0; i < COUNT; i++)
+    {
+      mini_random_scan_op (OP_SCAN0, MAXBITS, a, &b, &ref);
+      res = mpz_scan0 (a, b);
+      if (res != ref)
+	{
+	  fprintf (stderr, "mpz_scan0 failed:\n");
+	  dump ("a", a);
+	  fprintf (stderr, "b: %lu\n", b);
+	  fprintf (stderr, "r: %lu\n", res);
+	  fprintf (stderr, "ref: %lu\n", ref);
+	  abort ();
+	}
+      if (mpz_sgn (a) > 0 && ref < mpz_sizeinbase (a, 2))
+	{
+	  res = mpn_scan0 (a->_mp_d, b);
+	  if (res != ref)
+	    {
+	      fprintf (stderr, "mpn_scan0 failed:\n");
+	      dump ("a", a);
+	      fprintf (stderr, "b: %lu\n", b);
+	      fprintf (stderr, "r: %lu\n", res);
+	      fprintf (stderr, "ref: %lu\n", ref);
+	      abort ();
+	    }
+	}
+      mini_random_scan_op (OP_SCAN1, MAXBITS, a, &b, &ref);
+      res = mpz_scan1 (a, b);
+      if (res != ref)
+	{
+	  fprintf (stderr, "mpz_scan1 failed:\n");
+	  dump ("a", a);
+	  fprintf (stderr, "b: %lu\n", b);
+	  fprintf (stderr, "r: %lu\n", res);
+	  fprintf (stderr, "ref: %lu\n", ref);
+	  abort ();
+	}
+      if (mpz_sgn (a) > 0 && ref != ~ (mp_bitcnt_t) 0)
+	{
+	  res = mpn_scan1 (a->_mp_d, b);
+	  if (res != ref)
+	    {
+	      fprintf (stderr, "mpn_scan1 failed:\n");
+	      dump ("a", a);
+	      fprintf (stderr, "b: %lu\n", b);
+	      fprintf (stderr, "r: %lu\n", res);
+	      fprintf (stderr, "ref: %lu\n", ref);
+	      abort ();
+	    }
+	}
+    }
+  mpz_clear (a);
+}