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

*** 18,27 ****
--- 18,28 ----
  #
  # CDDL HEADER END
  #
  
  #
+ # Copyright 2017 Gary Mills
  # Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  
  # cmd/vi/port/Makefile
*** 59,68 ****
--- 60,73 ----
  CERRWARN += -_gcc=-Wno-unused-label
  CERRWARN += -_gcc=-Wno-unused-value
  CERRWARN += -_gcc=-Wno-uninitialized
  CERRWARN += -_gcc=-Wno-address
  
+ # Suppress errors for: tmp1 n
+ ex_vmain.o exobjs.xpg4/ex_vmain.o exobjs.xpg6/ex_vmain.o := \
+     CERRWARN += -_gcc=-Wno-unused-but-set-variable
+ 
  #
  # For message catalogue files
  #
  POFILES= $(EXOBJS:%.o=%.po) expreserve.po exrecover.po
  POFILE= port.po