Re: Bug in pwd

[James Youngman]

On Wed, Feb 16, 2005 at 06:47:26AM -0700, Eric Blake wrote:

> Furthermore, POSIX requires that when -P is specified, that $PWD be
> updated in the calling environment to scrub all symlinks from the
> environment variable that were previously set by a `cd -L' command.  I see
> no possible way to implement that without relying on pwd(1) being a shell
> builtin.  Bash 3.0 does not do this, I'm filing an additional bug in that
> direction.  Is it worth coreutils even maintaining pwd(1) if it can't be
> fully POSIX-compliant?

Yes.  Too many things assume /bin/pwd exists.  In fact some older
systems used to use popen() on /bin/pwd to implement getcwd(), I
think.

Anyway, it seems to me to make sense to maintain the majority of the
functionality of pwd in gnulib, which can allow sharing of code
(e.g. with Bash).

James.