docs/ide4c/vscode/c_cpp_properties.json

{
    "configurations": [
        {
            "name": "Linux",
            "includePath": [
                "${workspaceFolder}/tools/toolutil",
                "${workspaceFolder}/tools/ctestfw",
                "${workspaceFolder}/common",
                "${workspaceFolder}/i18n"
            ],
            "defines": [
                "U_DISABLE_RENAMING=1"
            ],
            "compilerPath": "/usr/bin/clang",
            "cStandard": "c11",
            "cppStandard": "c++17",
            "intelliSenseMode": "clang-x64"
        }
    ],
    "version": 4
}