Creating ZIP archives is not properly handling wchar_t on Windows 11/x64.

[jjYBdx4IL]

The following creates the typical garbled filenames when there is a missing conversion between MultiByte and WideChars:

    if ((src = zip_source_win32w_create(zipFile.wstring().c_str(), 0, -1, &error)) == NULL) {
        ...
    }

    if ((za = zip_open_from_source(src, ZIP_CREATE, &error)) == NULL) {
        ...
    }

The same source works properly when trying to access Unicode files for archiving, though. It's just the zip file's name itself that's mishandled.