I'm trying to compile a DLL using DMC for use in a sample DMD program, but the link stage keeps failing and I can't figure out why. The C source:

```
#include <stdio.h>
#ifdef __DMC__
#define WIN32_LEAN_AND_MEAN
#include <windows.h>

BOOL APIENTRY DllMain(HANDLE hModule, DWORD reason, LPVOID lpReserved) {
    switch (reason)
    {
    case DLL_PROCESS_ATTACH:
    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
    case DLL_PROCESS_DETACH:
       break;
    }
    return TRUE;
}

#endif

int some_c_function(int a) {
    printf("Hello, D! From C! %d", a);
    return a + 20;
}

```
The definition file:

EXPORTS
    DllMain
    some_c_function

The command line:
dmc -mn -WD dll-testing.cpp kernel32.lib clib.def

The errors:

OPTLINK : Error 180: No Match Found for Export/ENTRY -  : DllMain
OPTLINK : Error 180: No Match Found for Export/ENTRY -  : some_c_function
OPTLINK : Warning 148: USE16/USE32 Mismatch : DGROUP
C:\dm\bin\..\lib\SNN.lib(dllstart)
 Error 83: Illegal frame on start address
OPTLINK : Warning 174: 32-bit Segments Inappropriate for 16-bit Segmented output

OPTLINK : Error 81: Cannot EXPORT : DllMain
OPTLINK : Error 81: Cannot EXPORT : some_c_function
clib.obj(clib)
 Error 35: Cannot Reach TARGET from FRAME at Relative 00024H  from
 Segment _TEXT
 FRAME  = Frame of Group FLAT 0000
 TARGET = External Symbol _printf 001ACH
 FIXUPP Type = 32-bit Conditional JMP

I've tried ditching the def file and using __declspec(dllexport) directly on the functions and got the same result. Does anyone know how to compile a DLL with DMC?