(hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)

[bison.git] / NEWS

diff --git a/NEWS b/NEWS
index a24eebc245089f3b1b02348018c2d899f61cfa5b..9c34410e803833a26c7c5e633273c563e1afc805 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,44 @@
 Bison News
 ----------
 
+Changes in version 1.75a:
+
+* Bison can no longer be built by a K&R C compiler; it requires C89 or
+  later to be built.  This change originally took place a few versions
+  ago, but nobody noticed until we recently asked someone to try
+  building Bison with a K&R C compiler.
+
+Changes in version 1.75:
+
+* Bison should now work on 64-bit hosts.
+
+* Indonesian translation thanks to Tedi Heriyanto.
+
+* GLR parsers
+  Fix spurious parse errors.
+
+* Pure parsers
+  Some people redefine yyerror to steal yyparse' private variables.
+  Reenable this trick until an official feature replaces it.
+
+* Type Clashes
+  In agreement with POSIX and with other Yaccs, leaving a default
+  action is valid when $$ is untyped, and $1 typed:
+
+       untyped: ... typed;
+
+  but the converse remains an error:
+
+       typed: ... untyped;
+
+* Values of mid-rule actions
+  The following code:
+
+       foo: { ... } { $$ = $1; } ...
+
+  was incorrectly rejected: $1 is defined in the second mid-rule
+  action, and is equal to the $$ of the first mid-rule action.
+
 Changes in version 1.50, 2002-10-04:
 
 * GLR parsing
@@ -11,7 +49,7 @@ Changes in version 1.50, 2002-10-04:
   %dprec and %merge on grammar rules allow parse-time resolution of
   ambiguities.  Contributed by Paul Hilfinger.
 
-  Unfortunately GLR parsing does not yet work properly on 64-bit hosts
+  Unfortunately Bison 1.50 does not work properly on 64-bit hosts
   like the Alpha, so please stick to 32-bit hosts for now.
 
 * Output Directory