title: Automatic Build in Sublime Text is not working for C++
body: <p>I have created the Custom Build System for C++ file. Below is my Build System:</p>
  
  <pre><code>{
      "cmd": ["g++", "-Wall", "-time", "$file", "-o", "$file_base_name","&amp;&amp;", "start", "cmd","/c","${file_base_name}","^&amp;","cmd","/c","pause"],
          "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)",
          "working_dir": "${project_path:${folder}}",
          "selector": "source.cpp",
          "shell": true,    
  }
  </code></pre>
  
  <p>The thing is, it is working only if I select this build system manually. If I specify  Automatic build system, the system's c++ build system is working instead of mine. How to change this behavior? </p>