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/obprntffuns.c b/third_party/gmp/printf/obprntffuns.c
new file mode 100644
index 0000000..a23e4e8
--- /dev/null
+++ b/third_party/gmp/printf/obprntffuns.c
@@ -0,0 +1,73 @@
+/* __gmp_obstack_printf_funs -- support for gmp_obstack_printf and
+ gmp_obstack_vprintf.
+
+ THE FUNCTIONS IN THIS FILE ARE FOR INTERNAL USE ONLY. THEY'RE ALMOST
+ CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR DISAPPEAR COMPLETELY IN
+ FUTURE GNU MP RELEASES.
+
+Copyright 2001, 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
+
+#define _GNU_SOURCE /* ask glibc <stdio.h> for obstack_vprintf */
+
+#include <stdarg.h>
+#include <stdio.h> /* for obstack_vprintf */
+#include <string.h>
+#include <obstack.h>
+
+#include "gmp-impl.h"
+
+
+static int
+gmp_obstack_memory (struct obstack *ob, const char *ptr, size_t len)
+{
+ obstack_grow (ob, ptr, len);
+ return len;
+}
+
+static int
+gmp_obstack_reps (struct obstack *ob, int c, int reps)
+{
+ obstack_blank (ob, reps);
+ memset ((char *) obstack_next_free(ob) - reps, c, reps);
+ return reps;
+}
+
+const struct doprnt_funs_t __gmp_obstack_printf_funs = {
+ (doprnt_format_t) obstack_vprintf,
+ (doprnt_memory_t) gmp_obstack_memory,
+ (doprnt_reps_t) gmp_obstack_reps
+};
+
+#else
+typedef int __gmp_dummy_typedef;
+#endif /* HAVE_OBSTACK_VPRINTF */