findNativeIncludeDirWindows

fn findNativeIncludeDirWindows(
    self: *LibCInstallation,
    gpa: Allocator,
    io: Io,
    sdk: std.zig.WindowsSdk,
) FindError!void {
    var install_buf: [2]std.zig.WindowsSdk.Installation = undefined;
    const installs = fillInstallations(&install_buf, sdk);

    var result_buf = std.array_list.Managed(u8).init(gpa);
    defer result_buf.deinit();

    for (installs) |install| {
        result_buf.shrinkAndFree(0);
        try result_buf.print("{s}\\Include\\{s}\\ucrt", .{ install.path, install.version });

        var dir = Io.Dir.cwd().openDir(io, result_buf.items, .{}) catch |err| switch (err) {
            error.FileNotFound,
            error.NotDir,
            error.NoDevice,
            => continue,

            else => return error.FileSystem,
        };
        defer dir.close(io);

        dir.access(io, "stdlib.h", .{}) catch |err| switch (err) {
            error.FileNotFound => continue,
            else => return error.FileSystem,
        };

        self.include_dir = try result_buf.toOwnedSlice();
        return;
    }

    return error.LibCStdLibHeaderNotFound;
}