cin, cout, and cerr undefined

[Tim Zimmerlin]

Folks,

I am using the c++ and nostdinit options with flex 2.5.4 on Cygwin on 
Windows Server 2003. I have written my own LexerInput() function, so 
yyin is not used. In fact stream IO is not used.

The code is years old and fully operational on NT 4.0. So, I figured 
that porting it would be easy. Running flex and bison is easy, but the 
C++ compiler gives several errors rooted on cin, cout, and cerr being 
undefined.

I have diff'd the old and new flex outputs. There are a few differences 
and the only relevant ones have to do with stream IO include files and 
classes.

Is this a change or bug in flex?

Thanks,
Tim