allow multiple keywords on one line

direct/src/dcparser/dcParser.h.prebuilt

@@ -1,7 +1,7 @@
-/* A Bison parser, made by GNU Bison 2.0.  */
+/* A Bison parser, made by GNU Bison 1.875b.  */
 
 /* Skeleton parser for Yacc-like parsing with Bison,
-   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 
    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

direct/src/dcparser/dcParser.yxx

@@ -264,11 +264,16 @@ typedef_decl:
         ;
 
 keyword_decl:
-        KW_KEYWORD IDENTIFIER
+        KW_KEYWORD keyword_decl_list
+	;
+
+keyword_decl_list:
+	empty
+        | keyword_decl_list IDENTIFIER
 {
   dc_file->add_keyword($2);
 }
-        | KW_KEYWORD KEYWORD
+        | keyword_decl_list KEYWORD
 {
   // This keyword has already been defined.  But since we are now
   // explicitly defining it, clear its bitmask, so that we will have a