all: 5threads simple return-vals sendFunction 5threads: GO111MODULE="off" go build -v -x -o ~/go/bin/5threads 5threads.go 5threads simple: GO111MODULE="off" go build -v -x -o ~/go/bin/simple-worker simple-worker.go simple-worker main1: GO111MODULE="off" go build -v -x -o ~/go/bin/main1 main.go main1 return-vals: GO111MODULE="off" go build -v -x -o ~/go/bin/return-vals return-vals.go return-vals sendFunction: GO111MODULE="off" go build -v -x -o ~/go/bin/sendFunction sendFunction.go sendFunction