8516 Suppress gcc errors with -Wno- in Makefile for usr/src/cmd

*** 18,27 ****
--- 18,28 ----
  #
  # CDDL HEADER END
  #
  
  #
+ # Copyright 2017 Gary Mills
  # Copyright (c) 2017 Peter Tribble.
  # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  
*** 32,41 ****
--- 33,45 ----
  
  include $(SRC)/cmd/svr4pkg/Makefile.svr4pkg
  
  LDLIBS  +=      -lpkg -ladm -lgen
  
+ # Suppress errors for: funcSigint funcSighup pls pld
+ lock.o := CERRWARN += -_gcc=-Wno-unused-but-set-variable
+ 
  .KEEP_STATE:
  all:            $(PROG)
  
  install:        all $(ROOTPROG)