Reduce lint

@@ -113,10 +113,16 @@
 
 CPPFLAGS +=     $(CPPFLAGS_$(PROG))
 OBJS +=         $(OBJS_$(PROG))
 SRCS +=         $(SRCS_$(PROG))
 
+# For lint, always include ptools_common.c, but suppress the "defined but
+# not used" error, in case a given ptool doesn't need it.
+SRCS +=         ../../common/ptools_common.c
+LINTFLAGS +=    -xerroff=E_NAME_DEF_NOT_USED2
+LINTFLAGS64 +=  -xerroff=E_NAME_DEF_NOT_USED2
+
 INSTALL_NEW=
 INSTALL_LEGACY=$(RM) $(ROOTPROCBINSYMLINK) ; \
         $(LN) -s ../../bin/$(PROG) $(ROOTPROCBINSYMLINK)
 
 .KEEP_STATE: