content/2015/keeping-up/go_build.log

$ cat hello.go
package main

import "fmt"

func main() {
     fmt.Println("Hello World!")
}

$ go run -gccgoflags="-fgo-optimize-allocs" hello.go
Hello World!

$ go version
go version go1.4.2 gccgo (GCC) 6.0.0 20150714 (experimental) linux/amd64