Is this RDMD bug ?

[novice2 via Digitalmars-d-learn]

I have 2 reduced files, wich i can't compile with new (DMD 2.066) 
rdmd.exe under Windows 7 32-bit.

Command: rdmd --force --build-only aaa.d
Message "Error 42: Symbol Undefined _D3etc3bbb3fooFZi"
But command: dmd aaa.d etc\bbb.d
Compile without errors.
And then i replace rdmd.exe by old (from DMD 2.065) compile OK 
too.

Can anybody reproduce this?


/*** begin of file aaa.d ***/
import etc.bbb;

void main()
{
  int i = foo();
}
/***/


/*** begin of file etc\bbb.d ***/
module etc.bbb;

public int foo()
{
  return 1;
}
/***/