pg_hba.conf and postgresql.conf in old installation directory

I have installed the PostgreSQL 9.4 on my MacBook via MacPorts, and I am trying to edit pg_hba.conf, but I don't see it in my current installation. Furthermore, psql is reporting that config_file is in my old 9.3 directory! How should I fix this? $ port select --list postgresql Available versions for postgresql: none postgresql93 postgresql94 (active) $ psql --version psql (PostgreSQL) 9.4.1 $ psql -U postgres -c 'SHOW config_file' config_file ---------------------------------------------- /Library/PostgreSQL/9.3/data/postgresql.conf (1 row) $ ls /Library/PostgreSQL/9.3/data PG_VERSION pg_hba.conf pg_notify pg_stat_tmp pg_xlog base pg_ident.conf pg_serial pg_subtrans postgresql.conf global pg_log pg_snapshots pg_tblspc postmaster.opts pg_clog pg_multixact pg_stat pg_twophase postmaster.pid $ ls /Library/PostgreSQL/9.4/data ls: /Library/PostgreSQL/9.4/data: No such file or directory $ ls /Library/PostgreSQL/9.4 ls: /Library/PostgreSQL/9.4: No such file or directory $ psql -U postgres -c 'SHOW data_directory' data_directory ------------------------------ /Library/PostgreSQL/9.3/data (1 row) $ locate pg_hba.conf /Library/PostgreSQL/9.3/share/postgresql/pg_hba.conf.sample /opt/local/share/postgresql93/pg_hba.conf.sample /opt/local/share/postgresql94/pg_hba.conf.sample $ ls /opt/local/share/postgresql94 conversion_create.sql postgres.bki snowball_create.sql extension postgres.description sql_features.txt information_schema.sql postgres.shdescription system_views.sql pg_hba.conf.sample postgresql.conf.sample timezone pg_ident.conf.sample psqlrc.sample timezonesets pg_service.conf.sample recovery.conf.sample tsearch_data