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/printf/obvprintf.c b/third_party/gmp/printf/obvprintf.c
new file mode 100644
index 0000000..7563c11
--- /dev/null
+++ b/third_party/gmp/printf/obvprintf.c
@@ -0,0 +1,53 @@
+/* gmp_obstack_vprintf -- formatted output to an obstack.
+
+Copyright 2001, 2002, 2018 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+The GNU MP Library 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 copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#include "config.h"
+
+#if HAVE_OBSTACK_VPRINTF
+
+#include <stdarg.h>
+#include <obstack.h>
+#include <string.h>
+
+#include "gmp-impl.h"
+
+
+int
+gmp_obstack_vprintf (struct obstack *ob, const char *fmt, va_list ap)
+{
+ ASSERT (! MEM_OVERLAP_P (obstack_base(ob), obstack_object_size(ob),
+ fmt, strlen(fmt)+1));
+
+ return __gmp_doprnt (&__gmp_obstack_printf_funs, ob, fmt, ap);
+}
+
+#else
+typedef int __gmp_dummy_typedef;
+#endif /* HAVE_OBSTACK_VPRINTF */