Adding upstream version 5.2.37.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

lib/readline/savestring.c

@@ -0,0 +1,40 @@
+/* savestring.c - function version of savestring for backwards compatibility */
+
+/* Copyright (C) 1998,2003,2017 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library (Readline), a library
+   for reading lines of text with interactive input and history editing.      
+
+   Readline is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Readline 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 a copy of the GNU General Public License
+   along with Readline.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#define READLINE_LIBRARY
+
+#include <config.h>
+#ifdef HAVE_STRING_H
+#  include <string.h>
+#endif
+#include "xmalloc.h"
+
+/* Backwards compatibility, now that savestring has been removed from
+   all `public' readline header files. */
+char *
+savestring (const char *s)
+{
+  char *ret;
+
+  ret = (char *)xmalloc (strlen (s) + 1);
+  strcpy (ret, s);
+  return ret;
+}