Golang build flags

os_arch.go

// Go 1.6.1, Some combinations are valid, some not
// The known operating systems.
var okgoos = []string{
	"darwin",
	"dragonfly",
	"linux",
	"android",
	"solaris",
	"freebsd",
	"nacl",
	"netbsd",
	"openbsd",
	"plan9",
	"windows",
}

// The known architectures.
var okgoarch = []string{
	"386",
	"amd64",
	"amd64p32",
	"arm",
	"arm64",
	"mips64",
	"mips64le",
	"ppc64",
	"ppc64le",
	"s390x",
}

// Valid combinations
var cgoEnabled = map[string]bool{
	"darwin/386":      true,
	"darwin/amd64":    true,
	"darwin/arm":      true,
	"darwin/arm64":    true,
	"dragonfly/amd64": true,
	"freebsd/386":     true,
	"freebsd/amd64":   true,
	"freebsd/arm":     true,
	"linux/386":       true,
	"linux/amd64":     true,
	"linux/arm":       true,
	"linux/arm64":     true,
	"linux/ppc64le":   true,
	"android/386":     true,
	"android/amd64":   true,
	"android/arm":     true,
	"netbsd/386":      true,
	"netbsd/amd64":    true,
	"netbsd/arm":      true,
	"openbsd/386":     true,
	"openbsd/amd64":   true,
	"solaris/amd64":   true,
	"windows/386":     true,
	"windows/amd64":   true,
	"linux/s390x":     true,
}

run.bash

$ GOOS=<okgoos> GOARCH=<okgoarch> go build ...