[Flex-help] Hello. Problems with flex 2.5.4 and gcc 3.3

[<mik...@ya...>]

I have just started using flex on Mac OSX and all was working fine until I
tried to gernerate a C++ scanner. Seems there is a problem with flex and gcc
3.3. I get errors regarding istream. I have seen these problems documented
but not yet found a solution. The errors are:

In file included from /usr/include/FlexLexer.h:50,
                 from lex.cpp.cc:240:
/usr/include/gcc/darwin/3.3/c++/backward/iostream.h:36: error: using 
   declaration `istream' introduced ambiguous type `istream'
lex.cpp.cc: In member function `virtual int cppFlexLexer::yylex()':
lex.cpp.cc:648: error: cannot convert `std::istream*' to `istream*' in 
   assignment
lex.cpp.cc: In member function `void cppFlexLexer::yy_load_buffer_state()':
lex.cpp.cc:1181: error: cannot convert `istream*' to `std::istream*' in 
   assignment
lex.cpp.cc: In member function `void 
   cppFlexLexer::yy_init_buffer(yy_buffer_state*, std::istream*)':
lex.cpp.cc:1232: error: cannot convert `std::istream*' to `istream*' in 
   assignment


Can anyone help??

=====
Regards

Chaffinch
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