Remove dependency on GMP, so that it is easier to run the bench suite.

tests/test-mvariant.c

@@ -21,9 +21,9 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 #include <stdio.h>
-#include <gmp.h>
-
+#include "mympz.h"
 #include "m-string.h"
+
 #include "m-variant.h"
 
 #include "coverage.h"
@@ -138,7 +138,7 @@ static void test_pair(void)
 
 VARIANT_DEF2(triple,
              (s, string_t, STRING_OPLIST),
-             (z, mpz_t, (INIT(mpz_init), INIT_SET(mpz_init_set), SET(mpz_set), CLEAR(mpz_clear) )),
+             (z, my_mpz_t, (INIT(my_mpz_init), INIT_SET(my_mpz_init_set), SET(my_mpz_set), CLEAR(my_mpz_clear) )),
              (i, int, M_DEFAULT_OPLIST) )
 
 static void
@@ -148,10 +148,10 @@ test_triple(void)
   triple_init(t);
   string_t s;
   string_init(s);
-  mpz_t    z;
-  mpz_init(z);
+  my_mpz_t    z;
+  my_mpz_init(z);
 
-  mpz_set_str(z, "125567890456789345784567812345678", 10);
+  my_mpz_set_ui(z, 2556789045);
   string_set_str(s, "FHZKJHFKZUHFKZHFUHZFUHURHYERUYEUIRYEIURYIEYRIU");
   assert( triple_type(t) == triple_EMPTY);
 
@@ -165,9 +165,9 @@ test_triple(void)
   assert( triple_type(t) == triple_z);
   triple_set_z(t, z);
   assert( triple_type(t) == triple_z);
-  assert( mpz_cmp (z, *triple_get_z(t)) == 0);
+  assert( my_mpz_cmp (z, *triple_get_z(t)) == 0);
 
-  mpz_clear(z);
+  my_mpz_clear(z);
   string_clear(s); 
   triple_clear(t);
 }