+2005-12-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Improve wording for unused-value warnings.
+
+2005-12-22 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
+ (b4_yysymprint_generate): Rename as...
+ (b4_yy_symbol_print_generate): this.
+ Generate yy_symbol_print instead of yysymprint.
+ Generate also yy_symbol_value_print, and use it.
+
+2005-12-22 Akim Demaille <akim@epita.fr>
+
+ * NEWS: Warn about unused values.
+ * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
+ a `used' member.
+ (symbol_list_n_get, symbol_list_n_used_set): New.
+ (symbol_list_n_type_name_get): Use symbol_list_n_get.
+ * src/scan-gram.l (handle_action_dollar): Flag used symbols.
+ * src/reader.c (grammar_current_rule_check): Check that values are
+ used.
+ * src/symtab.c (symbol_print): Accept 0.
+ * tests/existing.at: Remove the type information.
+ Empty the actions.
+ Remove useless actions (beware of mid-rule actions: perl -000
+ -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
+ * tests/actions.at (Exotic Dollars): Use unused values.
+ * tests/calc.at: Likewise.
+ * tests/glr-regression.at (No users destructors if stack 0 deleted):
+ Likewise.
+
+ * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
+ rule_useful_p.
+
2005-12-21 Paul Eggert <eggert@cs.ucla.edu>
Undo 2005-12-01 tentative license wording change. The wording is