Index: TODO
===================================================================
diff -u -rf0d274241d978847f40deb439e17172d7d8716d9 -rc15b56a1490c74cfca4ffd2bf54034526dcf8ef2
--- TODO	(.../TODO)	(revision f0d274241d978847f40deb439e17172d7d8716d9)
+++ TODO	(.../TODO)	(revision c15b56a1490c74cfca4ffd2bf54034526dcf8ef2)
@@ -2460,12 +2460,14 @@
   "protected", as well as for "class-object"
 - extended regression test
 
-TODO:
+- serializer: catch for object-level alias apparently 
+  not needed anymore (search for ns_cache_flush)
+- silence compilation when compiled without dtrace
 
 
-- serializer: check, why catch is needed for object-level alias 
-  (search for ns_cache_flush)
 
+TODO:
+
 - document value added replacements of Tcl functions
 
 - object parameter type forward:
Index: generic/nsf.c
===================================================================
diff -u -r65f8883a4596ea98365b7de1652700e3ac7394cc -rc15b56a1490c74cfca4ffd2bf54034526dcf8ef2
--- generic/nsf.c	(.../nsf.c)	(revision 65f8883a4596ea98365b7de1652700e3ac7394cc)
+++ generic/nsf.c	(.../nsf.c)	(revision c15b56a1490c74cfca4ffd2bf54034526dcf8ef2)
@@ -14772,13 +14772,15 @@
 NsfConfigureCmd(Tcl_Interp *interp, int configureoption, Tcl_Obj *valueObj) {
   int bool;
 
+#if defined(NSF_DTRACE)
   if (NSF_DTRACE_CONFIGURE_PROBE_ENABLED()) {
     /* TODO: opts copied from tclAPI.h; maybe make global value? */
     static CONST char *opts[] = {
       "debug", "dtrace", "filter", "profile", "softrecreate", 
       "objectsystems", "keepinitcmd", "checkresults", "checkarguments", NULL};
     NSF_DTRACE_CONFIGURE_PROBE((char *)opts[configureoption-1], valueObj ? ObjStr(valueObj) : NULL);
   }
+#endif
 
   if (configureoption == ConfigureoptionObjectsystemsIdx) {
     NsfObjectSystem *osPtr;
Index: library/serialize/serializer.tcl
===================================================================
diff -u -r65f8883a4596ea98365b7de1652700e3ac7394cc -rc15b56a1490c74cfca4ffd2bf54034526dcf8ef2
--- library/serialize/serializer.tcl	(.../serializer.tcl)	(revision 65f8883a4596ea98365b7de1652700e3ac7394cc)
+++ library/serialize/serializer.tcl	(.../serializer.tcl)	(revision c15b56a1490c74cfca4ffd2bf54034526dcf8ef2)
@@ -671,7 +671,11 @@
 	# TODO look into the code, why we need the catch here. I found
 	# the problem with an object level alias for ns_cache_flush
 	set source ""
-	catch {set source [$x ::nsf::methods::class::info::method definition [lindex $definition end]]}
+	set source [$x ::nsf::methods::class::info::method definition [lindex $definition end]]
+#	if {
+#	    [catch {set source [$x ::nsf::methods::class::info::method definition [lindex $definition end]]} errorMsg] } {
+#	  puts stderr "+++++ serializer: could not get definition of '[lindex $definition end]': $errorMsg"
+#	}
 	if {$source ne ""} {
 	  set obj [lindex $source 0]
 	  if {$obj eq $x} {