PostgreSQL seems to have an environment file that allows settings environment variables. On Linux (Kubuntu 11.10 in my case), it is located at e.g. /etc/postgresql/8.4/main/environment
and empty by default, apart from a few helpful comments.
On Mac OSX Lion, the file does not seem to exist: I would expect it at e.g. /Library/PostgreSQL/9.0/data/
as that's where all the other configuration files are, but it is not there - and if I create it, it does not seem to be used.
How can I set environment variables for the PostgreSQL server on Mac OSX ?