std.complex

[eles]

Hello,
 I just installed dmd 2.045 (unarchived in c:\dmd2) and put c:
\dmd2\windows2\bin on path.

 Compiling the following:

import std.complex;

int main(){

	return 0;
}

fails with:

C:\dmd2>dmd test.d
OPTLINK (R) for Win32  Release 8.00.2
Copyright (C) Digital Mars 1989-2009  All rights reserved.
http://www.digitalmars.com/ctg/optlink.html
test.obj(test)
 Error 42: Symbol Undefined _D3std7complex12__ModuleInfoZ
--- errorlevel 1

why?