the compiler supports ANSI C or is a C++ compiler, as enums.
This helps debuggers producing symbols instead of values.
+* Reports
+ In addition to --verbose, bison supports --report=THINGS, which
+ produces additional information:
+
+ `itemset' complete the core item sets with their closure
+ `lookahead' explicitly associate lookaheads to items
+
\f
Changes in version 1.35, 2002-03-25: