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-toom42.c b/third_party/gmp/tests/mpn/t-toom42.c
new file mode 100644
index 0000000..09a4a0c
--- /dev/null
+++ b/third_party/gmp/tests/mpn/t-toom42.c
@@ -0,0 +1,8 @@
+#define mpn_toomMN_mul mpn_toom42_mul
+#define mpn_toomMN_mul_itch mpn_toom42_mul_itch
+
+#define MIN_AN 10
+#define MIN_BN(an) (((an) + 7) >> 2)
+#define MAX_BN(an) ((2*(an)-5) / (size_t) 3)
+
+#include "toom-shared.h"