How to edit Sublime Text build settings? - sublimetext3

Question

I want to enable -std=gnu++11 in Sublime Text 3's C++ Single File build on Ubuntu 12.04.
I have already upgraded the tool chain to the latest g++ and do not want to see the following error on every build:
error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support is currently experimental, and must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
I browsed to /home/myuname/.config/sublime-text-3 but cannot find any file to edit.
How can I edit the build settings?

Answer 1

edited
My original answer works, but there's a much better way of doing this, by creating your own build system. This use case is exactly why the feature is there.
Go to Tools → Build System → New Build System… (all the way at the bottom) and enter the contents below. Save as C++ 11 Single File.sublime-build, and it will now be accessible in the build system menu. Select it, hit CtrlB to build, and then hit CtrlShiftB to run the resulting program. Or you can use a Build and Run option and call it by hitting CtrlB, then selecting that option.
{
"cmd": ["g++", "-std=gnu++11", "${file}", "-o", "${file_path}/${file_base_name}"],
"file_regex": "^(..[^:]*):([0-9]+):?([0-9]+)?:? (.*)$",
"working_dir": "${file_path}",
"selector": "source.c, source.c++",
"variants":
[
{
"name": "Run",
"cmd": ["${file_path}/${file_base_name}"]
},
{
"name": "Build and Run",
"cmd": ["g++ -std=gnu++11 ${file} -o ${file_path}/${file_base_name} && ${file_path}/${file_base_name}"],
"shell": true
}
]
}
If you need to edit it in the future, the file is in the User folder of Packages. The Packages directory is the one opened when selecting Preferences → Browse Packages…:
Linux: ~/.config/sublime-text-3/Packages or ~/.config/sublime-text/Packages
OS X: ~/Library/Application Support/Sublime Text 3/Packages or ~/Library/Application Support/Sublime Text/Packages
Windows Regular Install: C:\Users\YourUserName\AppData\Roaming\Sublime Text 3\Packages or C:\Users\YourUserName\AppData\Roaming\Sublime Text\Packages
Windows Portable Install: InstallationFolder\Sublime Text 3\Data\Packages InstallationFolder\Sublime Text\Data\Packages
The exact path depends on version and whether or not you upgraded from Sublime Text 3.

Answer 2

In my case, the problem is that in Windows, ST3 was calling py instead of python which was the default. If you change python in "cmd": ["python", "-u", "$file"] for your local python interpreter, the new system should work.
{
"cmd": ["python3", "-u", "$file"],
"file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)",
"selector": "source.python",
"env": {"PYTHONIOENCODING": "utf-8"},
"windows": {
"cmd": ["python", "-u", "$file"],
},
"variants":
[
{
"name": "Syntax Check",
"cmd": ["python3", "-m", "py_compile", "$file"],
"windows": {
"cmd": ["py", "-m", "py_compile", "$file"],
}
}
]
}