Undo the parts of the unlocked-I/O change that substituted

[bison.git] / NEWS

diff --git a/NEWS b/NEWS
index 5ce986394529dc5447da12a16c01a61c32b04033..f0710fd80d29e29d23abe90a8f846978ad645ea9 100644 (file)
--- a/NEWS
+++ b/NEWS
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 Bison News
 ----------
 
+Changes in version 2.1a:
+
+* DJGPP support added.
+
+* %require "VERSION"
+  To specify the youngest version of Bison accepted by the grammar file.
+
+* lalr1.cc: The token and value types are now class members.
+  The tokens where defined as free form enums and cpp macros.  YYSTYPE
+  was defined as a free form union.  Both are now class members:
+  tokens are enumerations of the `yy::parser::token' struct, and the
+  semantic values have the `yy::parser::semantic_type' type.
+
+  If you do not want or can update to this scheme, the directive
+  `%define "global_tokens_and_yystype" "1"' triggers the global
+  definition of tokens and YYSTYPE.  This change is suitable both
+  for previous releases of Bison, and this one.
+
+  If you wish to update, then make sure older version of Bison will
+  fail using `%require "2.1a"'.
+
 Changes in version 2.1, 2005-09-16:
 
 * Bison-generated parsers now support the translation of diagnostics like