How to Automatically Run C++11 on Sublime Text 3 on macOS?

I'd like to automatically run c++ using Sublime Text 3 build system:

It works when I manually set the build system:

> Tools > Build System > C++11

What should I be changing to be able to set,

> Tools > Build System > Automatic 

and run C++11?

C++11.build-system

{
    "cmd": ["g++", "-std=c++11", "-o", "${file_path}/${file_base_name}", "${file}"],
    "file_regex": "^(..[^:]*):([0-9]+):?([0-9]+)?:? (.*)$",
    "working_dir": "${file_path}",
    "selector": "source.c, source.c++",
    "quiet": true,
    "variants":
    [
        {
            "name": "Run",
            "cmd": ["bash", "-c", "g++ '${file}' -o '${file_path}/${file_base_name}' && '${file_path}/${file_base_name}'"]
        },
        {
            "name": "Build without C++11",
            "cmd": ["g++ '${file}' -o '${file_path}/${file_base_name}'"]
        }
    ]
}