Linking C and D

[monarch_dodra]

I'm trying to get the hello world of cross compiling working:

main.d
//----
extern (C) void foo();
void main()
{
     foo();
}
//----

foo.c
//----
#include <stdio.h>

void foo()
{
   printf("hello world");
}
//----

I can't seem to get the executable to link correctly.

I'm using gcc and dmd on windows.

I'm building foo.c with:
gcc -c foo.c -o foo.obj

Then I build my exe with:
dmd foo.obj main.d

But I get:
OPTLINK (R) for Win32  Release 8.00.12
Copyright (C) Digital Mars 1989-2010  All rights reserved.
http://www.digitalmars.com/ctg/optlink.html
test.obj Offset 00000H Record Type 004C
  Error 138: Module or Dictionary corrupt
--- errorlevel 1

...Help ?