10080 smatch Makefile changes for usr/src/cmd

@@ -20,18 +20,22 @@
 # CDDL HEADER END
 #
 #
 # Copyright (c) 1989 by Sun Microsystems, Inc.
 #
+# Copyright (c) 2018, Joyent, Inc.
 
 PROG= factor
 
 include ../Makefile.cmd
 
 LDLIBS += -lm
 CERRWARN += -_gcc=-Wno-implicit-function-declaration
 
+# not linted
+SMATCH=off
+
 .KEEP_STATE:
 
 all: $(PROG) 
 
 install: all $(ROOTPROG)