Update contrib/tools/bison to 3.6.4

9febd1b3a041f2e2083c076fbde9680a7cdc9b9e

1 files changed, 34 insertions, 0 deletions

diff --git a/contrib/tools/bison/lib/readline.h b/contrib/tools/bison/lib/readline.h
new file mode 100644
index 0000000000..0d9a00308c
--- /dev/null
+++ b/contrib/tools/bison/lib/readline.h
@@ -0,0 +1,34 @@
+/* readline.h --- Simple implementation of readline.
+   Copyright (C) 2005, 2009-2020 Free Software Foundation, Inc.
+   Written by Simon Josefsson
+
+   This program 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.
+
+   This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#ifndef GL_READLINE_H
+#define GL_READLINE_H
+
+#if HAVE_READLINE_READLINE_H
+/* <readline/readline.h> makes use of the FILE type without including
+   <stdio.h> itself. */
+# include <stdio.h>
+# include <readline/readline.h>
+#else
+/* Prints a prompt PROMPT and then reads and returns a single line of
+   text from the user.  If PROMPT is NULL or the empty string, no
+   prompt is displayed.  The returned line is allocated with malloc;
+   the caller should free the line when it has finished with it. */
+extern char *readline (const char *prompt);
+#endif
+
+#endif /* GL_READLINE_H */