bustage fix part #2

mailnews/import/comm4x/src/Makefile.in

@@ -107,6 +107,10 @@ EXTRA_DSO_LDOPTS = \
 	$(MOZ_XPCOM_OBSOLETE_LIBS) \
 	$(NULL)
 
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
+EXTRA_DSO_LDOPTS += $(TK_LIBS)
+endif
+
 else
 
 # we don't want the shared lib, but we want to force the creation of a static lib.