flex using g++

[Arun Goel]

Hi ,

I am using flex to generate C++ code. I am getting the following error
message..
__________________________________________________________________________
DataQueryParser.C: In member function `virtual int yyFlexLexer::yylex()':
DataQueryParser.C:903: cannot convert `std::istream*' to `istream*' in
   assignment
DataQueryParser.C: In member function `void
   yyFlexLexer::yy_load_buffer_state()':
DataQueryParser.C:1436: cannot convert `istream*' to `std::istream*' in
   assignment
DataQueryParser.C: In member function `void
   yyFlexLexer::yy_init_buffer(yy_buffer_state*, std::istream*)':
DataQueryParser.C:1486: cannot convert `std::istream*' to `istream*' in
   assignment

__________________________________________________________________________

I am using
 #include<iostream> //no .h
 in the input file which is being used to generate the code.
I am using Mandrake 8.2 Linux & g++ 3.1 compiler to compile the generated
C++ file(DataQueryParser.C).

Any idea what I am doing wrong.

Any help will be appreciated..

Regards
----------------
Arun Goel
http://www.crml.uab.edu/~ag