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

@@ -37,11 +37,11 @@
 
 CPPFLAGS +=     $(_D_XOPEN_EXTN)
 CFLAGS +=       $(CCVERBOSE)
 CERRWARN +=     -_gcc=-Wno-parentheses
 CERRWARN +=     -_gcc=-Wno-uninitialized
-LDLIBS +=       -lxnet -lmd -lsocket
+LDLIBS +=       -lxnet -lmd
 CLEAN_FILES +=  $(ROUTEDOBJS) $(RTQUERYOBJS)
 CLOBBERFILES += $(ROUTEDPROG) $(RTQUERYPROG)
 #
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