[Mingw-users] Installation trouble with 4.3 Alpha

[Scott M. <us...@ar...>]

Now that I can finally compile with gcc 3.4.5, I want to move on to my real 
goal, which is to compile with 4.3 alpha.  After extracting 
gcc-part-c++-4.3.0-20080502-2-mingw32-alpha-bin.tar.gz and 
gcc-part-core-4.3.0-20080502-2-mingw32-alpha-bin.tar.gz on top of my mingw 
installation, I can compile this,

   int main() { }

but not this:

   #include <iostream>

   int main()
   {
     std::cout << "Hello\n";
   }

The latter elicits a zillion diagnostics, beginning with these:

> D:\Temp>gcc hello.cpp
> In file included from d:\apps\mingw4.3alpha\bin\../lib/gcc/mingw32/4.3.0/include/c++/bits/char_traits.h:46,
>                  from d:\apps\mingw4.3alpha\bin\../lib/gcc/mingw32/4.3.0/include/c++/ios:46,
>                  from d:\apps\mingw4.3alpha\bin\../lib/gcc/mingw32/4.3.0/include/c++/ostream:45,
>                  from d:\apps\mingw4.3alpha\bin\../lib/gcc/mingw32/4.3.0/include/c++/iostream:45,
>                  from hello.cpp:1:
> d:\apps\mingw4.3alpha\bin\../lib/gcc/mingw32/4.3.0/include/c++/bits/stl_algobase.h:69:29: error: ext/type_traits.h: No such file or
> directory
> d:\apps\mingw4.3alpha\bin\../lib/gcc/mingw32/4.3.0/include/c++/bits/stl_algobase.h:70:32: error: ext/numeric_traits.h: No such file
> or directory
> In file included from d:\apps\mingw4.3alpha\bin\../lib/gcc/mingw32/4.3.0/include/c++/ios:48,
>                  from d:\apps\mingw4.3alpha\bin\../lib/gcc/mingw32/4.3.0/include/c++/ostream:45,
>                  from d:\apps\mingw4.3alpha\bin\../lib/gcc/mingw32/4.3.0/include/c++/iostream:45,
>                  from hello.cpp:1:
> d:\apps\mingw4.3alpha\bin\../lib/gcc/mingw32/4.3.0/include/c++/bits/ios_base.h:46:27: error: ext/atomicity.h: No such file or direct
> ory

Clearly things are not configured correctly for finding library headers, but I 
see no mention in the installation instructions of what I need to do to address 
this.  Help?

Thanks,

Scott