Index: /trunk/psastro/src/psastro.c
===================================================================
--- /trunk/psastro/src/psastro.c	(revision 10781)
+++ /trunk/psastro/src/psastro.c	(revision 10782)
@@ -2,5 +2,5 @@
 
 static void usage (void) {
-    psErrorStackPrint(stderr, "USAGE: psastro [-file image(s)] [-list imagelist] (output)\n");
+    fprintf (stderr, "USAGE: psastro [-file image(s)] [-list imagelist] (output)\n");
     exit (2);
 }
@@ -10,6 +10,8 @@
     psTimerStart ("complete");
 
+    psastroErrorRegister();              // register our error codes/messages
+
     // model inits are needed in pmSourceIO
-    // XXX do we want to do the local model inits a la psphot?
+    // models defined in psphot/src/models are not available in psastro
     pmModelGroupInit ();