prompt display when cd to dir symoblic link

[Harald Becker]

On 02.04.2015 09:28, Denys Vlasenko wrote:
> Yes, bash shows that, but the *real* getcwd system call
> returns "/hdd1/test" in this case.
>
> You *can't* have a symlink as a current directory.
> It's just not possible in Linux.

So just modify santosh's question:

Why can't we use and display the same value for \w in prompt string, as 
the pwd command does? IMO it should exactly do that.

... but I can't find the location in BB ash.c, where this \w is replaced 
with the directory name :( ... (any hint?)

--
Harald