10079 smatch Makefile changes for usr/src/lib

*** 20,30 ****
--- 20,32 ----
  #
  #
  # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
+ # Copyright (c) 2018, Joyent, Inc.
  
+ 
  LIBRARY= libdyn.a
  VERS= .1
  
  DYNOBJS= \
          dyn_create.o \
*** 61,70 ****
--- 63,74 ----
  CFLAGS +=       $(CCVERBOSE) -I..
  LDLIBS +=       -lc
  
  CERRWARN +=     -_gcc=-Wno-unused-variable
  
+ SMOFF += no_if_block
+ 
  .KEEP_STATE:
  
  all:    $(LIBS)
  
  lint:   lintcheck