Index: Makefile.in
===================================================================
diff -u -N -r37c87756387c17e0f2f43634c0d452a91f91c844 -rdf76a8d9ffa43e250f5cf6b82e229fa51dac3026
--- Makefile.in	(.../Makefile.in)	(revision 37c87756387c17e0f2f43634c0d452a91f91c844)
+++ Makefile.in	(.../Makefile.in)	(revision df76a8d9ffa43e250f5cf6b82e229fa51dac3026)
@@ -583,6 +583,7 @@
 	$(TCLSH) $(src_test_dir_native)/method-require.test -libdir $(PLATFORM_DIR) $(TESTFLAGS)
 	$(TCLSH) $(src_test_dir_native)/interceptor-slot.test -libdir $(PLATFORM_DIR) $(TESTFLAGS)
 	$(TCLSH) $(src_test_dir_native)/alias.test -libdir $(PLATFORM_DIR) $(TESTFLAGS)
+	$(TCLSH) $(src_test_dir_native)/double-alias.test -libdir $(PLATFORM_DIR) $(TESTFLAGS)
 	$(TCLSH) $(src_test_dir_native)/protected.test -libdir $(PLATFORM_DIR) $(TESTFLAGS)
 	$(TCLSH) $(src_test_dir_native)/forward.test -libdir $(PLATFORM_DIR) $(TESTFLAGS)
 	$(TCLSH) $(src_test_dir_native)/mixinof.test -libdir $(PLATFORM_DIR) $(TESTFLAGS)
Index: tests/alias.test
===================================================================
diff -u -N -r3ccbf1417d84765af57693523035ecf857e37428 -rdf76a8d9ffa43e250f5cf6b82e229fa51dac3026
--- tests/alias.test	(.../alias.test)	(revision 3ccbf1417d84765af57693523035ecf857e37428)
+++ tests/alias.test	(.../alias.test)	(revision df76a8d9ffa43e250f5cf6b82e229fa51dac3026)
@@ -803,6 +803,46 @@
 }
 
 #
+# Test namespace of aliased methods coming from different namespaces
+#
+nx::test case proc-alias-target-namespace {
+
+    proc foo {} {
+	set :foo 1
+	namespace current
+    }
+    
+    namespace eval ns1 {
+	proc bar {} {
+	    set :bar 1
+	    namespace current
+	}
+    }
+    namespace eval ns2 {
+	nx::Object create o {
+	    :public object alias foo ::foo
+	    :public object alias bar ::ns1::bar
+	    :public object method baz {} {namespace current}
+	}
+    }
+
+    namespace eval ns3 {
+	nx::Object create o
+	set handle [o public object method FOO {} {namespace current}]
+	::ns2::o public object alias FOO $handle
+    }
+
+    #
+    # The following tests show, that the defining namespace of the
+    # target method prevails always
+    #
+    ? {ns2::o foo} ::    "alias to a global Tcl proc"
+    ? {ns2::o bar} ::ns1 "alias to a namespaced Tcl proc"
+    ? {ns2::o baz} ::ns2 "a method defined locally in ns2::o"
+    ? {ns2::o FOO} ::ns3 "alias to to method defined in ::ns3"
+}
+
+#
 # Local variables:
 #    mode: tcl
 #    tcl-indent-level: 2
Index: tests/double-alias.tcl
===================================================================
diff -u -N
--- tests/double-alias.tcl	(revision 0)
+++ tests/double-alias.tcl	(revision df76a8d9ffa43e250f5cf6b82e229fa51dac3026)
@@ -0,0 +1,173 @@
+package prefer latest
+package require nx::test
+
+
+nx::test case alias-redefine-method1 {
+    #
+    # redefine an object method by an alias pointing to an alias
+    #
+    proc ::foo args {;}
+    
+    nx::Object create o
+    ? {::o public object method BAR {} {;}} ::o::BAR
+    ? {::nsf::method::alias ::o bar ::foo} ::o::bar
+
+    ? {info commands ::o::bar} ::o::bar              "::o::bar exists"
+    ? {info commands ::o::BAR} ::o::BAR              "a command ::o::BAR exists"
+    ? {::nsf::method::alias o BAR ::o::bar} ::o::BAR "redefine an object method with an alias (pointing to an alias) 87a2"
+}
+
+nx::test case alias-redefine-method2 {
+    #
+    # redefine an object method by an alias pointing to an object method
+    #
+    proc ::foo args {;}
+    
+    nx::Object create o
+    ? {::o public object method BAR {} {;}} ::o::BAR
+    ? {::o public object method FOO {} {;}} ::o::FOO
+
+    ? {info commands ::o::FOO} ::o::FOO              "a command ::o::FOO exists"
+    ? {info commands ::o::BAR} ::o::BAR              "a command ::o::BAR exists"
+    ? {::nsf::method::alias o BAR ::o::FOO} ::o::BAR "redefine an object method with an alias (pointing to a method) 87a2"
+}
+
+
+nx::test case alias-double-alias-proc {
+
+    proc ::foo args {;}
+    nx::Object create o
+
+    ? {info commands ::o::FOO} ""                    "a command ::o::FOO' does not exist"
+    ? {info commands ::o::BAR} ""                    "a command ::o::BAR does not exist"
+    ? {::nsf::method::alias o FOO ::foo}    ::o::FOO "define an object alias based on existing ::foo"
+    ? {::nsf::method::alias o BAR ::o::FOO} ::o::BAR "define an object alias based on alias based on existing ::o::FOO"
+}
+
+nx::test case alias-double-alias-define {
+    #
+    # same as alias-double-reference-proc, but method instead of proc as target of o::FOO
+    #
+    proc ::foo args {;}
+
+    nx::Object create o
+    ? {::nsf::method::alias ::o bar ::foo} ::o::bar
+
+    ? {info commands ::o::bar} ::o::bar              "::o::bar exists"
+    ? {info commands ::o::FOO} ""                    "a command ::o::FOO' does not exists"
+    ? {info commands ::o::BAR} ""                    "a command ::o::BAR does not exist"
+    ? {::nsf::method::alias o FOO ::o::bar} ::o::FOO "define an object alias based on existing ::o::bar"
+    ? {::nsf::method::alias o BAR ::o::FOO} ::o::BAR "define an object alias based on alias based on existing (?) ::o::bar"
+}
+
+
+nx::test case alias-double-alias-redefine {
+    #
+    # same as alias-double-reference-define, but redefined instead of new definition
+    #
+    proc ::foo args {;}
+    
+    nx::Object create o
+    ? {::nsf::method::alias ::o FOO ::foo} ::o::FOO
+    ? {::nsf::method::alias ::o bar ::foo} ::o::bar
+
+    ? {info commands ::o::bar} ::o::bar              "::o::bar exists"
+    ? {info commands ::o::FOO} ::o::FOO              "a command ::o::FOO' exists"
+    ? {info commands ::o::BAR} ""                    "a command ::o::BAR does not exist"
+    ? {::nsf::method::alias o FOO ::o::bar} ::o::FOO "redefine an object alias based on existing ::o::bar"
+    ? {::nsf::method::alias o BAR ::o::FOO} ::o::BAR "define an object alias based on alias based on existing ::o::FOO"
+}
+
+nx::test case alias-double-alias-redefine0 {
+    #
+    # same as alias-double-reference-define, but redefined second cmd instead of new definition
+    #
+    proc ::foo args {;}
+    
+    nx::Object create o
+    ? {::o public object method BAR {} {;}} ::o::BAR
+    ? {::nsf::method::alias ::o bar ::foo} ::o::bar
+
+    ? {info commands ::o::bar} ::o::bar              "::o::bar exists"
+    ? {info commands ::o::FOO} ""                    "a command ::o::FOO' does not exist"
+    ? {info commands ::o::BAR} ::o::BAR              "a command ::o::BAR exists"
+    ? {::nsf::method::alias o FOO ::foo} ::o::FOO    "define an object alias based on existing ::foo"
+    ? {::nsf::method::alias o BAR ::o::FOO} ::o::BAR "redefine an object alias based on alias based on existing ::o::FOO 87a2"
+}
+
+nx::test case alias-double-alias-redefine1 {
+    #
+    # same as alias-double-reference-define, but redefined second cmd instead of new definition
+    #
+    proc ::foo args {;}
+    
+    nx::Object create o
+    ? {::o public object method BAR {} {;}} ::o::BAR
+    ? {::nsf::method::alias ::o bar ::foo} ::o::bar
+
+    ? {info commands ::o::bar} ::o::bar              "::o::bar exists"
+    ? {info commands ::o::FOO} ""                    "a command ::o::FOO' does not exist"
+    ? {info commands ::o::BAR} ::o::BAR              "a command ::o::BAR exists"
+    ? {::nsf::method::alias o FOO ::o::bar} ::o::FOO "define an object alias based on existing ::o::bar"
+    ? {::nsf::method::alias o BAR ::o::FOO} ::o::BAR "redefine an object alias based on alias based on existing ::o::FOO 87a2"
+}
+
+nx::test case alias-double-alias-redefine2 {
+    #
+    # same as alias-double-reference-define, but redefined twice instead of new definition
+    #
+    proc ::foo args {;}
+    
+    nx::Object create o
+    ? {::nsf::method::alias ::o FOO ::foo} ::o::FOO
+    ? {::o public object method BAR {} {;}} ::o::BAR
+    ? {::nsf::method::alias ::o bar ::foo} ::o::bar
+
+    ? {info commands ::o::bar} ::o::bar              "::o::bar exists"
+    ? {info commands ::o::FOO} ::o::FOO              "a command ::o::FOO' exists"
+    ? {info commands ::o::BAR} ::o::BAR              "a command ::o::BAR exists"
+    ? {::nsf::method::alias o FOO ::o::bar} ::o::FOO "redefine an object alias based on existing ::o::bar"
+    ? {::nsf::method::alias o BAR ::o::FOO} ::o::BAR "redefine an object alias based on alias based on existing ::o::FOO 87a2"
+}
+
+
+
+nx::test case alias-double-alias-object-method-redefine {
+
+    proc ::foo args {;}
+    
+    nx::Object create o
+    ? {::nsf::method::alias ::o FOO ::foo} ::o::FOO
+    ? {::o public object method bar {} {;}} ::o::bar
+
+    ? {info commands ::o::bar} ::o::bar              "handle ::o::bar exists"
+    ? {info commands ::o::FOO} ::o::FOO              "a command ::o::FOO' exists"
+    ? {info commands ::o::BAR} ""                    "a command ::o::BAR does not exist"
+    ? {::nsf::method::alias o FOO ::o::bar} ::o::FOO "redefine an object alias based on existing (?) ::o::bar"
+    ? {::nsf::method::alias o BAR ::o::FOO} ::o::BAR "define an object alias based on alias based on existing ::o::FOO"
+    ? {info exists ::nsf::alias(::o,FOO,1)} 1
+    ? {info exists ::nsf::alias(::o,BAR,1)} 1
+    
+    o public object method bar {} {}
+    ? {info exists ::nsf::alias(::o,FOO,1)} 1
+    ? {info exists ::nsf::alias(::o,BAR,1)} 1
+}
+
+
+nx::test case alias-double-alias-object-method-redefine2 {
+
+    proc ::foo args {;}
+    
+    nx::Object create o
+    ? {::nsf::method::alias ::o FOO ::foo} ::o::FOO
+    ? {::o public object method BAR {} {;}} ::o::BAR
+    ? {::o public object method bar {} {;}} ::o::bar
+
+    ? {info commands ::o::bar} ::o::bar              "handle ::o::bar exists"
+    ? {info commands ::o::FOO} ::o::FOO              "a command ::o::FOO' exists"
+    ? {info commands ::o::BAR} ::o::BAR              "a command ::o::BAR does not exist"
+    ? {::nsf::method::alias o FOO ::o::bar} ::o::FOO "redefine an object alias based on existing (?) ::o::bar"
+    ? {::nsf::method::alias o BAR ::o::FOO} ::o::BAR "redefine an object alias based on alias based on existing ::o::FOO 87a2"
+}
+
+