Default data directory

[Carol Walter <walterc@xxxxxxxxxxx>]

Hello,

We're building a test box for our webmaster to play in.  It needs to  
have the same config as his production box.  The postgres default  
data directory doesn't match the location of the data directory  
location on the production box.  The postgresql.conf file has the  
line that says that it changes the default data location commented  
out.  Is there somewhere else that postgres can get this information?

I can't figure out how the Postgres that's running on the production  
web server knows where to look for its data.

Thanks,
Carol