--- a/ExecutableFunction.st	Sat Nov 21 18:31:31 2015 +0100
+++ b/ExecutableFunction.st	Sat Nov 21 18:31:40 2015 +0100
@@ -11,6 +11,8 @@
 "
 "{ Package: 'stx:libbasic' }"
 
+"{ NameSpace: Smalltalk }"
+
 Object subclass:#ExecutableFunction
 	instanceVariableNames:'code*'
 	classVariableNames:''
@@ -69,6 +71,10 @@
 
 !ExecutableFunction class methodsFor:'queries'!
 
+isAbstract
+    ^ self == ExecutableFunction
+!
+
 isBuiltInClass
     "return true if this class is known by the run-time-system.
      Here, true is returned for myself, false for subclasses."
@@ -453,10 +459,10 @@
 !ExecutableFunction class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libbasic/ExecutableFunction.st,v 1.59 2014-03-20 17:04:25 vrany Exp $'
+    ^ '$Header$'
 !
 
 version_CVS
-    ^ '$Header: /cvs/stx/stx/libbasic/ExecutableFunction.st,v 1.59 2014-03-20 17:04:25 vrany Exp $'
+    ^ '$Header$'
 ! !