Add native Windows binary for bison.

bison/src/bison/2.4.1/bison-2.4.1-src/src/scan-gram.h

+/* Bison Grammar Scanner
+
+   Copyright (C) 2006, 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 SCAN_GRAM_H_
+# define SCAN_GRAM_H_
+
+/* From the scanner.  */
+extern FILE *gram_in;
+extern int gram__flex_debug;
+void gram_scanner_initialize (void);
+void gram_scanner_free (void);
+void gram_scanner_last_string_free (void);
+
+/* These are declared by the scanner, but not used.  We put them here
+   to pacify "make syntax-check".  */
+extern FILE *gram_out;
+extern int gram_lineno;
+
+# define GRAM_LEX_DECL int gram_lex (YYSTYPE *val, location *loc)
+GRAM_LEX_DECL;
+
+#endif /* !SCAN_GRAM_H_ */