"I want to be involved in Macedonia and Iceland. I wouldn't be here if I didn't," the Rangers defender told the Daily Record.
"I will not retire myself and I am available for Scotland. It has been that way for a while now.
"That's how I feel about playing for my country.
"I'm realistic. I know I'm not going to be here forever but I want to play as long as I can enjoy it for as long as I can."