diff -ruN postgresql-7.4.13-old/src/test/regress/pg_regress.sh postgresql-7.4.13/src/test/regress/pg_regress.sh
--- postgresql-7.4.13-old/src/test/regress/pg_regress.sh	2003-08-07 15:36:31.000000000 +0100
+++ postgresql-7.4.13/src/test/regress/pg_regress.sh	2003-10-12 11:48:32.000000000 +0100
@@ -355,6 +355,10 @@
         (exit 2); exit
     fi
 
+ 
+    echo "unix_socket_directory = '/tmp'" >>$PGDATA/postgresql.conf
+    psql_options="$psql_options --host=/tmp"
+
 
     # ----------
     # Start postmaster
