std.boxer broken?

[Daniel Keep]

Oh, look--it's me and something's not working again :P

Ok, I'm using dmd 0.153 and the included phobos.  When I try to compile
the following:

import std.boxer;
import std.stdio;

int main()
{
    Box x = box(42);
    writefln("The answer to life, the universe, "
            "and everything is: %d", unbox!(int)(x));

    return 0;
}

I get the following error message:

e:\Bin\Bin\link.exe boxtest,,,user32+kernel32/noi;
OPTLINK (R) for Win32  Release 7.50B1
Copyright (C) Digital Mars 1989 - 2001  All Rights Reserved

boxtest.obj(boxtest)
 Error 42: Symbol Undefined _assert_3std5boxer
--- errorlevel 1

Anyone have any idea what I stuffed up?  Other stuff, including
writefln, seems to work fine (well, apart from MinTL but we've already
covered that one), so I'm fairly sure it's linking in phobos.lib properly.

Any advice would be greatly appreciated.

	-- Daniel.

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