Add libgmp 6.2.0 to third_party
Don't build it yet. That will come in the next review.
Change-Id: Idf3266558165e5ab45f4a41c98cc8c838c8244d5
diff --git a/third_party/gmp/tests/mpn/t-toom53.c b/third_party/gmp/tests/mpn/t-toom53.c
new file mode 100644
index 0000000..ddbf177
--- /dev/null
+++ b/third_party/gmp/tests/mpn/t-toom53.c
@@ -0,0 +1,8 @@
+#define mpn_toomMN_mul mpn_toom53_mul
+#define mpn_toomMN_mul_itch mpn_toom53_mul_itch
+
+#define MIN_AN 17
+#define MIN_BN(an) (1 + 2*(((an) + 4) / (size_t) 5))
+#define MAX_BN(an) ((3*(an) - 11) >> 2)
+
+#include "toom-shared.h"