Bison 2.1 failes to generate C++ parser

[Daniel Kraft]

Hello!

I was trying to create a C++ parser with Bison 2.1; according to the 
manual, I must use the "lalr1.cc" skeleton for this, and require 
%defines.  But using the following simple grammar fails:

test.y:

%skeleton "lalr1.cc"
%defines

%%

abc: 'a'

%%

After executing
bison test.y
I do not get test.cc and test.hh as expected (after what is written in 
the manual); however, using an output-file-directive, this can be fixed. 
 What is more critical is that I even can't compile the generated 
parser - and not because references to things like error or yylex are 
missing (they miss of course), but because the generated parser-class 
does not contain a yylex-member at all!

So I get the compile-time error, that yy::parser::parse() references the 
unknown function yylex!  Although the manual says that yylex is a member 
of parser.

Many thanks in advance!
Yours,
Daniel Kraft