On Mon, 29 Mar 2010, Richard Stallman wrote: > POSIX specifies that an error be reported for any identifier that does > not appear on the LHS of a grammar rule and that is not defined by > %token, %left, %right, or %nonassoc. Bison 2.3b and later lost this > error report for the case when an identifier appears only after a > %prec directive. It is now restored. However, for backward > compatibility with recent Bison releases, it is only a warning for > now. In Bison 2.5 and later, it will return to being an error. > > Why not keep it as a warning only?
Fine with me. Any opinions from anyone else? Thanks.
