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 = libdtrace_jni.a
  VERS = .1
  
  LIBSRCS = \
*** 49,58 ****
--- 50,61 ----
  CFLAGS += $(CCVERBOSE) $(C_BIGPICFLAGS)
  CFLAGS64 += $(CCVERBOSE) $(C_BIGPICFLAGS64)
  
  CERRWARN += -_gcc=-Wno-uninitialized
  
+ SMOFF += all_func_returns
+ 
  LDLIBS += -lc -luutil -ldtrace -lproc
  
  LINTLIB =
  
  LFLAGS = -t -v