Can't install from a local Portfile (macports 2.0)

[doug livesey]

Hi -- I've been following the instructions here (
http://guide.macports.org/#development.local-repositories) to try to install
GCC 4.6.1 on my Mac.
I've done everything right, I think, but when I try to run the install, I
get this error:
  Error: Unable to execute port: could not read
"/Users/douglivesey/src/ports/lang/gcc461/Portfile": permission denied

I've tried chow-ing the whole of my local ports repository to my account, to
root, and to nobody, but I still get the error.
Could someone offer me any advice?
I'm on macports 2.0
Cheers,
   Doug.
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