10079 smatch Makefile changes for usr/src/lib

*** 20,29 ****
--- 20,30 ----
  #
  #
  # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
+ # Copyright (c) 2018, Joyent, Inc.
  
  LIBRARY=        libkvm.a
  VERS=           .1
  
  OBJECTS=        kvm.o kvm_getcmd.o
*** 46,55 ****
--- 47,58 ----
  
  CPPFLAGS = -D_KMEMUSER -D_LARGEFILE64_SOURCE=1 -I.. $(CPPFLAGS.master)
  
  CERRWARN +=     -_gcc=-Wno-uninitialized
  
+ SMOFF += signed
+ 
  CLOBBERFILES += test test.o
  
  .KEEP_STATE:
  
  lint: lintcheck