Index: openacs-4/packages/acs-tcl/tcl/01-database-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/Attic/01-database-procs.tcl,v
diff -u -r1.1.2.49 -r1.1.2.50
--- openacs-4/packages/acs-tcl/tcl/01-database-procs.tcl	21 Feb 2023 10:59:22 -0000	1.1.2.49
+++ openacs-4/packages/acs-tcl/tcl/01-database-procs.tcl	20 Apr 2023 15:49:48 -0000	1.1.2.50
@@ -2764,9 +2764,22 @@
 
     @param dbn The database name to use.  If empty_string, uses the default database.
 } {
+    #
+    # First, we try to get the postgres folder from the conf.
+    #
     set pool [lindex [db_available_pools $dbn] 0]
     set driver [ns_config "ns/db/pool/$pool" Driver]
-    return [ns_config "ns/db/driver/$driver" pgbin]
+    set pgbin [ns_config "ns/db/driver/$driver" pgbin]
+
+    if {$pgbin eq ""} {
+        #
+        # When the pgbin conf is missing, we guess the folder from the
+        # psql location.
+        #
+        set pgbin [file dirname [util::which psql]]
+    }
+
+    return $pgbin
 }