POSIX: warn if %prec's token was not defined.

[bison.git] / ChangeLog

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+2009-12-30  Joel E. Denny  <jdenny@clemson.edu>
+
+       POSIX: warn if %prec's token was not defined.
+       Reported by Florian Krohm at
+       <http://lists.gnu.org/archive/html/bug-bison/2009-12/msg00005.html>.
+       * NEWS (2.4.2): Document.
+       * src/reader.c (grammar_rule_check): Implement.
+       (grammar_current_rule_prec_set): Add comments explaining that we
+       here assume a %prec identifier is a token, but we still manage
+       to support POSIX.
+       * tests/input.at (%prec's token must be defined): New test
+       group.
+
 2009-12-31  Joel E. Denny  <jdenny@clemson.edu>
 
        * HACKING (Release Procedure): Recommend a secure automake.