Wxwidgets: setup.h not found

Help
1

Hello, I installed wxwidgets, my lsp recognizes it and it’s there, but I get the error „setup.h not found“. Can anybody help?

2

Please provide the shell.nix that you’re using as well as the exact command and code that you’re using.

3

This is my flake.nix:

{
  description = "A nix flake for C++ developement";
  outputs = { self, nixpkgs, }:
    let
      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
      forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
        pkgs = import nixpkgs {
          inherit system;
        };
      });
    in
    {
      devShells = forEachSupportedSystem ({ pkgs }: {
        default = pkgs.mkShell {
          packages = with pkgs; [
            gcc
            clang
            wxGTK32
          ];
          shellHook = ''
            exec zsh
          '';
        };
      });
    };
}

But when using that, the lsp doesnt recognize any headers… wtf
Nvm, that was because clang and gcc were included. But still, setup.h not found