<ftream> errors under g++ 3.2.2

  > file IO using <fstream> gives error messages about implicit typenames
  > being deprecated, and I can't for the life of me figure out what to do
  > my code to make the compiler happy

Change your /usr/include/g++/fstream as follows:

--- /usr/include/g++/fstream    Sun Jun 29 09:17:46 2003
+++ fstream     Sun Jun 29 11:33:38 2003
_at__at_ -299,12 +299,12 _at__at_
 
   // Generic definitions.
   template <typename _CharT, typename _Traits>
-    basic_filebuf<_CharT, _Traits>::int_type
+    typename basic_filebuf<_CharT, _Traits>::int_type
     basic_filebuf<_CharT, _Traits>::underflow() 
     { return _M_underflow_common(false); }
 
   template <typename _CharT, typename _Traits>
-    basic_filebuf<_CharT, _Traits>::int_type
+    typename basic_filebuf<_CharT, _Traits>::int_type
     basic_filebuf<_CharT, _Traits>::uflow() 
     { return _M_underflow_common(true); }