Add native Windows binary for bison.

bison/src/bison/2.4.1/bison-2.4.1-src/src/reduce.h

+/* Grammar reduction for Bison.
+
+   Copyright (C) 2000, 2001, 2002, 2007 Free Software Foundation, Inc.
+
+   This file is part of Bison, the GNU Compiler Compiler.
+
+   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 <http://www.gnu.org/licenses/>.  */
+
+#ifndef REDUCE_H_
+# define REDUCE_H_
+
+void reduce_grammar (void);
+void reduce_output (FILE *out);
+bool reduce_token_unused_in_grammar (symbol_number i);
+bool reduce_nonterminal_useless_in_grammar (symbol_number i);
+void reduce_free (void);
+
+extern symbol_number nuseless_nonterminals;
+extern rule_number nuseless_productions;
+#endif /* !REDUCE_H_ */