10075 make usr/src/tools smatch clean

@@ -28,10 +28,13 @@
 CPPFLAGS +=     -_gcc=-nostdinc
 CPPFLAGS +=     -I. -include fts.h
 CPPFLAGS +=     -I$(NATIVE_ADJUNCT)/include
 LDFLAGS +=      -L$(NATIVE_ADJUNCT)/lib -R$(NATIVE_ADJUNCT)/lib
 
+# 3rd party code
+SMATCH=off
+
 .KEEP_STATE:
 
 all:            $(PROG)
 
 install:        all $(ROOTONBLDMACHPROG)