v1.0.9 build error on linux about gateway

[jackpal]

Sorry! It should be fixed in v1.0.10

Tested by successfully building and running on Google colab:

%%bash
add-apt-repository ppa:longsleep/golang-backports -y
apt update
apt install golang-go
mkdir -p hello
cd hello

cat << EOF > main.go
package main

import (
    "fmt"

    "github.com/jackpal/gateway"
)

func main() {
    gateway, err := gateway.DiscoverGateway()
    if err != nil {
        fmt.Println(err)
    } else {
        fmt.Println("Gateway:", gateway.String())
   }
}
EOF

go mod init example.com/hello
go mod tidy
go run -v main.go