9852 enable ld(1) guidance and deflib assertions for the illumos build

@@ -68,10 +68,11 @@
 
 obj.o := CERRWARN += -erroff=E_CONST_OBJ_SHOULD_HAVE_INITIZR
 obj.o := CERRWARN += -erroff=E_IMPLICIT_DECL_FUNC_RETURN_INT
 
 LDLIBS          += -lsecdb -lsocket -lnsl -lscf -lxml2
+ADJUNCT_LIBS    = libxml2.so
 
 .KEEP_STATE:
 
 all:    $(PROG)