-all: centos7/generated debian8/generated ubuntu1204/generated ubuntu1404/generated
+all: centos7/generated debian8/generated ubuntu1204/generated ubuntu1404/generated ubuntu1604/generated
centos7/generated: common-generated-all
test -d centos7/generated || mkdir centos7/generated
test -d ubuntu1404/generated || mkdir ubuntu1404/generated
cp -rlt ubuntu1404/generated common-generated/*
-GOTARBALL=go1.7.1.linux-amd64.tar.gz
+ubuntu1604/generated: common-generated-all
+ test -d ubuntu1604/generated || mkdir ubuntu1604/generated
+ cp -rlt ubuntu1604/generated common-generated/*
+
+GOTARBALL=go1.7.5.linux-amd64.tar.gz
common-generated-all: common-generated/$(GOTARBALL)