$NetBSD$
BSDs don't support long options
--- client/Makefile.orig	2016-08-29 21:52:12.870263205 +0000
+++ client/Makefile	2016-08-29 21:52:39.329840759 +0000
@@ -24,8 +24,8 @@
 
 install : all
 	$(INSTALL) -d ${DESTDIR}$(prefix)/bin
-	$(INSTALL) -s --strip-program=${CROSS_COMPILE}${STRIP} mosquitto_pub ${DESTDIR}${prefix}/bin/mosquitto_pub
-	$(INSTALL) -s --strip-program=${CROSS_COMPILE}${STRIP} mosquitto_sub ${DESTDIR}${prefix}/bin/mosquitto_sub
+	$(INSTALL) -s mosquitto_pub ${DESTDIR}${prefix}/bin/mosquitto_pub
+	$(INSTALL) -s mosquitto_sub ${DESTDIR}${prefix}/bin/mosquitto_sub
 
 uninstall :
 	-rm -f ${DESTDIR}${prefix}/bin/mosquitto_pub
