Ticket #162: patch-am-1.3.0

$NetBSD$

--- src/rrd_update.c.orig       2008-06-11 01:12:55.000000000 +0200
+++ src/rrd_update.c
@@ -502,6 +502,15 @@ int _rrd_update(
                         rra_step_cnt, updvals, tmpl_idx, tmpl_cnt,
                         &pcdp_summary, version, skip_update,
                         &schedule_smooth) == -1) {
+           if (rrd_test_error()) { /* Should have error string always here */
+               char *save_error;
+
+               /* Prepend file name to error message */
+               if ((save_error = strdup(rrd_get_error())) != NULL) {
+                   rrd_set_error("%s: %s", filename, save_error);
+                   free(save_error);
+               }
+           }
             free(arg_copy);
             break;
         }