I'm having a problem.

I have the following files:

========mtest.d===========
module mtest;

int c;

static this()
{
c = 3;
}

int add(int x, int y)
{
return x + y;
}

void compile(char[] pattern, char[] attributes)
{

}

===========add.d============
import mtest;

int main()
{
int a = add(1, 2);
return 0;
}


when I compile it, I get this in the console:
D:\dmd\test>..\bin\dmd add.d
D:\dmd\bin\..\..\dm\bin\link.exe add,,,user32+kernel32/noi;
OPTLINK (R) for Win32  Release 7.50B1
Copyright (C) Digital Mars 1989 - 2001  All Rights Reserved

add.obj(add)
Error 42: Symbol Undefined _D5mtest3addFiiZi
--- errorlevel 1

it doesn't matter what symbols I'm using, it always comes up as Error 42: Symbol Undefined if it's from a module.

Does anyone have any insights?

Thanks
-Deja