code review 4824041: lib9: use $PWD in getwd

lib9: use $PWD in getwd

This makes the full file paths recorded by 6g
prefer $PWD over the actual directory name
(relevant when $PWD gets to the current directory
via symlinks).  It's what everyone else does, and
what people expect.

[rsc, 2011-07-22 05:15:00]

Hello iant, r (cc: golang-dev@googlegroups.com),

I'd like you to review this change to
https://go.googlecode.com/hg/

[r, 2011-07-22 05:20:31]

LGTM

[iant, 2011-07-22 05:40:14]

LGTM

Thanks.

[mattn, 2011-07-22 05:49:15]

Is this work on windows?
Then, not good.

On 2011/07/22 05:15:00, rsc wrote:
> Hello iant, r (cc: mailto:golang-dev@googlegroups.com),
> 
> I'd like you to review this change to
> https://go.googlecode.com/hg/

[rsc, 2011-07-23 01:21:00]

On Fri, Jul 22, 2011 at 01:49,  <mattn.jp@gmail.com> wrote:
> Is this work on windows?
> Then, not good.

It should work on Windows.  Whether it does
depends on whether mingw sets st_dev and st_ino
so that they match only when looking at the same
directory.  I expect that it does, or else many other
things would not work on mingw.

Russ

[rsc, 2011-07-23 01:21:19]

*** Submitted as http://code.google.com/p/go/source/detail?r=0b4b62c02a57 ***

lib9: use $PWD in getwd

This makes the full file paths recorded by 6g
prefer $PWD over the actual directory name
(relevant when $PWD gets to the current directory
via symlinks).  It's what everyone else does, and
what people expect.

R=iant, r, mattn.jp
CC=golang-dev
http://codereview.appspot.com/4824041