Bison News
----------
-Changes in version 1.75c:
+
+Changes in version 1.75e, 2002-12-24:
+
+* If the user does not define YYSTYPE as a macro, Bison now declares it
+ using typedef instead of defining it as a macro. POSIX requires this.
+ For consistency, YYLTYPE is also declared instead of defined.
+
+* %union directives can now have a tag before the `{', e.g., the
+ directive `%union foo {...}' now generates the C code
+ `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
+ The default union tag is `YYSTYPE', for compatibility with Solaris 9 Yacc.
+ For consistency, YYLTYPE's struct tag is now `YYLTYPE' instead of `yyltype'.
+
+* `yystype' and `yyltype' are now obsolescent macros instead of being
+ typedefs or tags; they are no longer documented and will be
+ withdrawn in a future release.
+
+* References to the experimental %lex-param and %parse-param directives
+ have been temporarily removed from the manual, since we don't want
+ users to rely upon these features quite yet.
+
+Changes in version 1.75d, 2002-12-13:
+
+* Semicolons are once again optional at the end of grammar rules.
+ This reverts to the behavior of Bison 1.33 and earlier, and improves
+ compatibility with Yacc.
+
+* Type clashes now generate warnings, not errors.
+
+* Yacc command and library now available
+ The Bison distribution now installs a yacc command, as POSIX requires.
+ Also, Bison now installs a small library liby.a containing
+ implementations of Yacc-compatible yyerror and main functions.
+ This library is normally not useful, but POSIX requires it.
+
+* %lex-param, %parse-param
+ These now take just one operand, not two.
+
+* The documentation now emphasizes that yylex and yyerror must be
+ declared before use. C99 requires this.
+
+* The documentation license has been upgraded to version 1.2
+ of the GNU Free Documentation License.
+
+Changes in version 1.75c, 2002-11-25:
+
+* "parse error" -> "syntax error"
+ Bison now uniformly uses the term "syntax error"; formerly, the code
+ and manual sometimes used the term "parse error" instead. POSIX
+ requires "syntax error" in diagnostics, and it was thought better to
+ be consistent.
+
+* "parsing stack overflow..." -> "parser stack overflow"
+ GLR parsers now report "parser stack overflow" as per the Bison manual.
+
+* GLR and inline
+ Users of Bison have to decide how they handle the portability of the
+ C keyword `inline'.
Changes in version 1.75b, 2002-11-13:
-----
-Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free
+Software Foundation, Inc.
-This file is part of GNU Autoconf.
+This file is part of Bison, the GNU Compiler Compiler.
-GNU Autoconf is free software; you can redistribute it and/or modify
+Bison 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 2, or (at your option)
any later version.
-GNU Autoconf is distributed in the hope that it will be useful,
+Bison 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.