Thanks gentlemen :-)

> Date: Mon, 20 May 2013 08:17:33 +0200
> From: stefanha@gmail.com
> To: mcheung63@hotmail.com
> CC: qemu-devel@nongnu.org
> Subject: Re: [Qemu-devel] This is an out of tree build but your source tree
>
> On Mon, May 20, 2013 at 4:33 AM, Peter Cheung <mcheung63@hotmail.com> wrote:
> > /Users/peter/workspace/qemu_latest>make
> > Makefile:16: *** This is an out of tree build but your source tree
> > (/Users/peter/workspace/qemu_latest) seems to have been used for an in-tree
> > build. You can fix this by running "make distclean && rm -rf *-linux-user
> > *-softmmu" in your source tree. Stop.
> >
> > even i run "make distclean && rm -rf *-linux-user *-softmmu", it doesn't
> > help.
>
> Are you trying to do an out-of-tree build? If yes, run the distclean
> command in the _source tree_ and not in your out-of-tree directory.
>
> If you are not trying to do an out-of-tree build then maybe the
> Makefile is buggy here on Mac OS X:
> ifneq ($(realpath $(SRC_PATH)),$(realpath .))
>
> Please add $(realpath $(SRC_PATH)) and $(realpath .) to the error
> message. That way you can confirm whether the path matching makes
> sense.
>
> Stefan
>