Index: generic/predefined.h
===================================================================
diff -u -r74b7a4066526ff5f5a8080ed907f71c9ed5c7700 -r3cbf24ff95e38976cdc905ec0e8014d9d754ad6f
--- generic/predefined.h	(.../predefined.h)	(revision 74b7a4066526ff5f5a8080ed907f71c9ed5c7700)
+++ generic/predefined.h	(.../predefined.h)	(revision 3cbf24ff95e38976cdc905ec0e8014d9d754ad6f)
@@ -26,9 +26,9 @@
 "::nsf::proc ::nsf::mixin {object -per-object:switch classes} {\n"
 "set rel [expr {${per-object} ? \"object-mixin\" : \"class-mixin\"}]\n"
 "if {[lindex $classes 0] ne \"\"} {\n"
-"set oldSetting [::nsf::relation $object $rel]\n"
-"uplevel [list ::nsf::relation $object $rel [linsert $oldSetting 0 $classes]]} else {\n"
-"uplevel [list ::nsf::relation $object $rel \"\"]}}\n"
+"set oldSetting [::nsf::relation::get $object $rel]\n"
+"uplevel [list ::nsf::relation::set $object $rel [linsert $oldSetting 0 $classes]]} else {\n"
+"uplevel [list ::nsf::relation::set $object $rel \"\"]}}\n"
 "::nsf::method::provide autoname {::nsf::method::alias autoname ::nsf::methods::object::autoname}\n"
 "::nsf::method::provide exists   {::nsf::method::alias exists   ::nsf::methods::object::exists}\n"
 "::nsf::method::provide volatile {::nsf::method::alias volatile   ::nsf::methods::object::volatile}\n"