C++ iostream compilation problems

[Geoff Hart]

I'm trying to compile some C++ code, but hit a basic problem
with some of the headers.  Example, even just the single include:

#include <iostream>

yields

wineg++  -c  -mno-cygwin -I.    -o cxx_iostream.o cxx_iostream.cpp
In file included from 
/usr/lib/gcc/i386-redhat-linux/3.4.0/../../../../include/c++/3.4.0/i386-redhat-linux/bits/c++locale.h:42,
                  from 
/usr/lib/gcc/i386-redhat-linux/3.4.0/../../../../include/c++/3.4.0/iosfwd:46,
                  from 
/usr/lib/gcc/i386-redhat-linux/3.4.0/../../../../include/c++/3.4.0/ios:44,
                  from 
/usr/lib/gcc/i386-redhat-linux/3.4.0/../../../../include/c++/3.4.0/ostream:45,
                  from 
/usr/lib/gcc/i386-redhat-linux/3.4.0/../../../../include/c++/3.4.0/iostream:45,
                  from cxx_iostream.cpp:1:
/usr/lib/gcc/i386-redhat-linux/3.4.0/../../../../include/c++/3.4.0/cstdio:167: 
error: `::snprintf' has not been declared
/usr/lib/gcc/i386-redhat-linux/3.4.0/../../../../include/c++/3.4.0/cstdio:168: 
error: `::vfscanf' has not been declared
/usr/lib/gcc/i386-redhat-linux/3.4.0/../../../../include/c++/3.4.0/cstdio:169: 
error: `::vscanf' has not been declared
/usr/lib/gcc/i386-redhat-linux/3.4.0/../../../../include/c++/3.4.0/cstdio:171: 
error: `::vsscanf' has not been declared
....

The error list goes on for a few pages.  This is with Winelib 20041019
on FC2 (gcc 3.4).

Do I need some #defines to correct this?  I tried scanning the gcc
headers with that in mind, but couldn't find any which solved this.

Are the GCC C++ includes incompatible with the winelib headers?

Geoff