Index: openacs-4/packages/acs-tcl/tcl/00-icanuse-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/Attic/00-icanuse-procs.tcl,v
diff -u -r1.1.2.10 -r1.1.2.11
--- openacs-4/packages/acs-tcl/tcl/00-icanuse-procs.tcl	22 Jul 2020 12:34:20 -0000	1.1.2.10
+++ openacs-4/packages/acs-tcl/tcl/00-icanuse-procs.tcl	23 Jul 2020 11:58:47 -0000	1.1.2.11
@@ -92,6 +92,8 @@
 ::acs::register_icanuse "ns_writer"       {[info commands ::ns_writer]       ne ""}
 ::acs::register_icanuse "ns_hash"         {[info commands ::ns_hash]         ne ""}
 
+catch {ns_ictl trace foo} ::errorMsg
+::acs::register_icanuse "ns_ictl trace idle" {"idle" in [split $::errorMsg " "]}
 
 #
 # Add some compatibility procs for AOLserver or older NaviServer versions