Newbie: pg_hba.conf question

Hi all,
I'm trying to use psql on SGI irix 6.
The build and install process seems to be ok, but
when I try to run the regress test suite, the
client commands failed. The postmaster had
started correctly, but no way to connect it.

The error looks like a well known one (see chapter 12 of
admin guide), but I cannot solve it:

The client says:

marcvs> psql
psql: No pg_hba.conf entry for host localhost, user marcvs, database marcvs

The pg_hba.conf in the PGDATA actually contains a line with:

local all trust

- Any well known install problem ?

-MP-

-----------------------------------------------------------------------
Marc POINOT Alias: marcvs Email: poinot(at)onera(dot)fr
ONERA -MFE/DSNA/ELSA Tel: 01.46.73.42.84 Info: elsa-info(at)onera(dot)fr
29, Div. Leclerc Fax: 01.46.73.41.66 Site:
92322 Chatillon FRANCE Project: elsA Web: http://www.onera.fr