How to configure vscode to find clang libraries?

Beginners
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1

Based on this SO post, I created a FindClassDecls.cpp file and I try to setup a VSCode in macOS to find the required clang headers. So I’ve tried to add the output of these two commands:

  • llvm-config --cflags and
  • clang -E - -v < /dev/null 2>&1 | grep "^ /" | grep clang

to the “includePath” entry in .vscode/c_cpp_properties.json. So my .json looks like this:

{
    "configurations": [
        {
            "name": "Mac",
            "includePath": [
                "${workspaceFolder}/**",
                "/opt/homebrew/Cellar/llvm/15.0.7_1/include",
                "/opt/homebrew/Cellar/llvm/15.0.7_1/lib/clang/15.0.7/include"
            ],
            "defines": [],
            "macFrameworkPath": [
                "/Library/Developer/CommandLineTools/SDKs/MacOSX13.sdk/System/Library/Frameworks"
            ],
            "compilerPath": "/opt/homebrew/opt/llvm/bin/clang",
            "cStandard": "c17",
            "cppStandard": "c++14",
            "intelliSenseMode": "macos-clang-arm64"
        }
    ],
    "version": 4
}

And this is my tasks.json:

{
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C++: clang++ build active file",
            "command": "/opt/homebrew/opt/llvm/bin/clang++",
            "args": [
                "-fcolor-diagnostics",
                "-fansi-escape-codes",
                "-g",
                "${file}",
                "-o",
                "${fileDirname}/${fileBasenameNoExtension}"
            ],
            "options": {
                "cwd": "${fileDirname}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "detail": "Task generated by Debugger."
        }
    ],
    "version": "2.0.0"
}

However, the required headers are still not found ('clang/AST/ASTConsumer.h' file not found). These are the first lines of the .cpp file:

#include "clang/AST/ASTConsumer.h"
#include "clang/AST/RecursiveASTVisitor.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/FrontendAction.h"
#include "clang/Tooling/Tooling.h"

Any idea what could be missing?
My environment:

> clang --version
Homebrew clang version 15.0.7
Target: arm64-apple-darwin22.2.0
Thread model: posix
InstalledDir: /opt/homebrew/opt/llvm/bin

> llvm-config --version --prefix --includedir --libdir --libs
15.0.7
/opt/homebrew/Cellar/llvm/15.0.7_1
/opt/homebrew/Cellar/llvm/15.0.7_1/include
/opt/homebrew/Cellar/llvm/15.0.7_1/lib
-lLLVM-15