tasks.json

// © 2020 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "Makefile", // You can choose your own label.
            "type": "shell",
            "command": "make",
            // Make this the default build command.
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "presentation": {
                "reveal": "always"
            },
            // You can pass all the building arguments here.
            "args": [
                "all",
                "--debug", // Enable debug mode.
                "-j24", // Launch no more than 24 jobs in parallel
                "-l20" // Stop launching jobs if system load average is too high
            ]
        },
        {
            "label": "buildTest", // for building test cases before running it.
            "command": "make", // Could be any other shell command
            "args": [
                "tests",
                "-j24", // Launch no more than 24 jobs in parallel
                "-l20" // Stop launching jobs if system load average is too high
            ],
            "type": "shell"
        }
    ]
}