As a user who compiles Qt himself, I'm left in the dark regarding the configuration of QtConnectivity

-- Configure summary:

Building for: linux-clang-libc++ (x86_64, CPU features: mmx sse sse2)
Compiler: clang 10.0.0
Build options:
  Mode ................................... release (with debug info)
  Optimize release build for size ........ no
  Fully optimize release builds (-O3) .... no
  Building shared libraries .............. yes
  Using C standard ....................... C11
  Using C++ standard ..................... C++20
  Using ccache ........................... no
  Using new DTAGS ........................ yes
  Relocatable ............................ yes
  Using precompiled headers .............. yes
  Using LTCG ............................. no
  Using Intel CET ........................ no
  Target compiler supports:
    SSE .................................. SSE2 SSE3 SSSE3 SSE4.1 SSE4.2
    AVX .................................. AVX AVX2 VAES
    AVX512 ............................... F ER CD PF DQ BW VL IFMA VBMI AVX512VBMI2
    Other x86 ............................ AES F16C RDRAND SHA
  Sanitizers:
    Addresses ............................ no
    Threads .............................. no
    Memory ............................... no
    Fuzzer (instrumentation only) ........ no
    Undefined ............................ no
  Build parts ............................ libs tests tools
Qt modules and options:
  Qt Concurrent .......................... yes
  Qt D-Bus ............................... yes
  Qt D-Bus directly linked to libdbus .... yes
  Qt Gui ................................. yes
  Qt Network ............................. yes
  Qt PrintSupport ........................ yes
  Qt Sql ................................. yes
  Qt Testlib ............................. yes
  Qt Widgets ............................. yes
  Qt Xml ................................. yes
Support enabled for:
  Using pkg-config ....................... yes
  udev ................................... yes
  Using system zlib ...................... yes
  Zstandard support ...................... yes
  Thread support ......................... yes
Common build options:
  Linker can resolve circular dependencies  yes
Qt Core:
  backtrace .............................. yes
  DoubleConversion ....................... yes
    Using system DoubleConversion ........ yes
  GLib ................................... yes
  ICU .................................... yes
  Using system libb2 ..................... yes
  Built-in copy of the MIME database ..... yes
  cpp/winrt base ......................... no
  Tracing backend ........................ <none>
  Logging backends:
    journald ............................. no
    syslog ............................... no
    slog2 ................................ no
  PCRE2 .................................. yes
    Using system PCRE2 ................... yes
  CLONE_PIDFD support in forkfd .......... yes
Qt Sql:
  SQL item models ........................ yes
Qt Network:
  getifaddrs() ........................... yes
  IPv6 ifname ............................ yes
  libproxy ............................... no
  Linux AF_NETLINK ....................... yes
  OpenSSL ................................ yes
    Qt directly linked to OpenSSL ........ no
  OpenSSL 1.1 ............................ yes
  DTLS ................................... yes
  OCSP-stapling .......................... yes
  SCTP ................................... yes
  Use system proxies ..................... yes
  GSSAPI ................................. yes
  Brotli Decompression Support ........... no
  qTopLevelDomain() ...................... yes
    Built-in publicsuffix database ....... yes
    System publicsuffix database ......... yes
Core tools:
  Android deployment tool ................ yes
  macOS deployment tool .................. no
  Windows deployment tool ................ no
  qmake .................................. yes
Qt Gui:
  Accessibility .......................... yes
  FreeType ............................... yes
    Using system FreeType ................ yes
  HarfBuzz ............................... yes
    Using system HarfBuzz ................ yes
  Fontconfig ............................. yes
  Image formats:
    GIF .................................. yes
    ICO .................................. yes
    JPEG ................................. yes
      Using system libjpeg ............... yes
    PNG .................................. yes
      Using system libpng ................ yes
  Text formats:
    HtmlParser ........................... yes
    CssParser ............................ yes
    OdfWriter ............................ yes
    MarkdownReader ....................... yes
      Using system libmd4c ............... yes
    MarkdownWriter ....................... yes
  EGL .................................... yes
  OpenVG ................................. no
  OpenGL:
    Desktop OpenGL ....................... yes
    OpenGL ES 2.0 ........................ no
    OpenGL ES 3.0 ........................ no
    OpenGL ES 3.1 ........................ no
    OpenGL ES 3.2 ........................ no
  Vulkan ................................. yes
  Session Management ..................... yes
Features used by QPA backends:
  evdev .................................. yes
  libinput ............................... yes
  HiRes wheel support in libinput ........ no
  INTEGRITY HID .......................... no
  mtdev .................................. yes
  tslib .................................. yes
  xkbcommon .............................. yes
  X11 specific:
    XLib ................................. yes
    XCB Xlib ............................. yes
    EGL on X11 ........................... yes
    xkbcommon-x11 ........................ yes
    xcb-sm ............................... yes
QPA backends:
  DirectFB ............................... no
  EGLFS .................................. yes
  EGLFS details:
    EGLFS OpenWFD ........................ no
    EGLFS i.Mx6 .......................... no
    EGLFS i.Mx6 Wayland .................. no
    EGLFS RCAR ........................... no
    EGLFS EGLDevice ...................... yes
    EGLFS GBM ............................ no
    EGLFS VSP2 ........................... no
    EGLFS Mali ........................... no
    EGLFS Raspberry Pi ................... no
    EGLFS X11 ............................ yes
  LinuxFB ................................ yes
  VNC .................................... yes
  VK_KHR_display ......................... yes
  QNX:
    lgmon ................................ no
    IMF .................................. no
  XCB:
    Using system-provided xcb-xinput ..... no
    GL integrations:
      GLX Plugin ......................... yes
        XCB GLX .......................... yes
      EGL-X11 Plugin ..................... yes
  Windows:
    Direct 2D ............................ no
    Direct 2D 1.1 ........................ no
    DirectWrite .......................... no
    DirectWrite 3 ........................ no
Qt Widgets:
  GTK+ ................................... yes
  Styles ................................. Fusion Windows
Qt Testlib:
  Tester for item models ................. yes
Qt PrintSupport:
  CUPS ................................... yes
Qt Sql Drivers:
  DB2 (IBM) .............................. no
  InterBase .............................. no
  MySql .................................. yes
  OCI (Oracle) ........................... no
  ODBC ................................... no
  PostgreSQL ............................. no
  SQLite ................................. yes
    Using system provided SQLite ......... no
Further Image Formats:
  JasPer ................................. no
  MNG .................................... yes
  TIFF ................................... yes
    Using system libtiff ................. yes
  WEBP ................................... yes
    Using system libwebp ................. yes
Qt QML:
  QML network support .................... yes
  QML debugging and profiling support .... yes
  QML just-in-time compiler .............. yes
  QML XML http request ................... yes
  QML Locale ............................. yes
Qt QML Models:
  QML list model ......................... yes
  QML delegate model ..................... yes
Qt Quick:
  AnimatedImage item ..................... yes
  Canvas item ............................ yes
  Support for Qt Quick Designer .......... yes
  Flipable item .......................... yes
  GridView item .......................... yes
  ListView item .......................... yes
  TableView item ......................... yes
  TreeView item .......................... yes
  Path support ........................... yes
  PathView item .......................... yes
  Positioner items ....................... yes
  Repeater item .......................... yes
  ShaderEffect item ...................... yes
  Sprite item ............................ yes
Qt Quick Templates 2:
  Hover support .......................... yes
  Multi-touch support .................... yes
  Calendar support ....................... yes
Qt Quick Controls 2:
  Styles ................................. Basic Fusion Imagine iOS Material Universal macOS Windows
Qt Multimedia:
  GStreamer 1.0 .......................... no
  FFmpeg ................................. no
  Video for Linux ........................ yes
  VAAPI support .......................... no
  PulseAudio ............................. yes
  Linux DMA buffer support ............... yes
  MMRenderer ............................. no
  AVFoundation ........................... no
  Windows Media Foundation ............... no
Qt 3D:
  Assimp ................................. yes
  System Assimp .......................... no
  Use SSE2 instructions .................. yes
  Use AVX2 instructions .................. no
  Aspects:
    Render aspect ........................ yes
    Input aspect ......................... yes
    Logic aspect ......................... yes
    Animation aspect ..................... yes
    Extras aspect ........................ yes
Qt 3D APIs:
  Vulkan ................................. yes
Qt 3D Renderers:
  OpenGL Renderer ........................ yes
  RHI Renderer ........................... yes
Qt3D Geometry Loaders:
  Autodesk FBX ........................... no
Qt 5 Compatibility Libraries:
  iconv .................................. no
Qt Charts Types:
  Area Chart ............................. yes
  Line Chart ............................. yes
  Spline Chart ........................... yes
  Scatter Chart .......................... yes
  Bar Chart .............................. yes
  Pie Chart .............................. yes
  Boxplot Chart .......................... yes
  Candlestick Chart ...................... yes
Qt Axis Types:
  DateTime Axis .......................... yes
Qt Tools:
  Qt Assistant ........................... yes
  QDoc ................................... yes
  Clang-based lupdate parser ............. yes
  Qt Designer ............................ yes
  Qt Distance Field Generator ............ yes
  Qt Linguist ............................ yes
  pixeltool .............................. yes
  qdbus .................................. yes
  Qt Attributions Scanner ................ yes
  qtdiag ................................. yes
  qtplugininfo ........................... yes
Serial Port:
  ntddmodm ............................... no
Qt Opcua:
  Open62541 .............................. yes
  Unified Automation C++ SDK ............. no
  Support for namespace 0 NodeId names ... yes
  Namespace 0 NodeIds generator .......... no
  Open62541 security support ............. yes
  Support for global discovery server .... yes
QtQuick3D:
  Assimp ................................. yes
  System Assimp .......................... no
Qt Remote Objects:
  High Availability Manager (ham) ........ no
Qt Scxml:
  ECMAScript data model for QtScxml ...... yes
Qt Sensors:
  sensorfw ............................... no
  sensorfw_enabled_with_cmake ............ no
Qt SerialBus:
  Socket CAN ............................. yes
  Socket CAN FD .......................... yes
  SerialPort Support ..................... yes
Qt TextToSpeech:
  Flite .................................. no
  Flite with ALSA ........................ no
  Speech Dispatcher ...................... no
Qt Virtualkeyboard:
  Desktop integration .................... yes
  Built-in layouts ....................... yes
  Key navigation ......................... no
  Retro style as default ................. no
  Sensitive Debug ........................ no
  Cerence ................................ no
    Static Linking ....................... no
    Handwriting .......................... no
      Alphabetic ......................... no
      CJK ................................ no
    XT9 .................................. no
      XT9 Debug .......................... no
      XT9 9-key layouts .................. no
    Bundle resources ..................... no
      Handwriting ........................ no
      XT9 ................................ no
  Hunspell ............................... yes
    Using Hunspell copy from 3rdparty/ ... no
  OpenWnn ................................ yes
  MyScript ............................... no
  Language support enabled for:
    Arabic ............................... yes
    Bulgarian ............................ yes
    Czech ................................ yes
    Danish ............................... yes
    German ............................... yes
    Greek ................................ yes
    English GB ........................... yes
    English US ........................... yes
    Spanish .............................. yes
    Spanish Mexico ....................... yes
    Estonian ............................. yes
    Farsi ................................ yes
    Finnish .............................. yes
    French Canada ........................ yes
    French France ........................ yes
    Hebrew ............................... yes
    Hindi ................................ yes
    Croatian ............................. yes
    Hungarian ............................ yes
    Indonesian ........................... yes
    Italian .............................. yes
    Japanese ............................. yes
    Korean ............................... yes
    Malay ................................ yes
    Norwegian ............................ yes
    Dutch ................................ yes
    Polish ............................... yes
    Portuguese Brazil .................... yes
    Portuguese Portugal .................. yes
    Romanian ............................. yes
    Russian .............................. yes
    Slovak ............................... yes
    Slovenian ............................ yes
    Albanian ............................. yes
    Serbian .............................. yes
    Swedish .............................. yes
    Thai ................................. yes
    Turkish .............................. yes
    Ukrainian ............................ yes
    Vietnamese ........................... yes
    Simplified Chinese ................... yes
    Traditional Chinese .................. yes
    HongKong Chinese ..................... no
  Traditional chinese input methods:
    Zhuyin ............................... yes
    Cangjie .............................. yes
Qt Wayland TextInput Protocol V4(WIP) .... no
Qt Wayland Client ........................ yes
Qt Wayland Compositor .................... yes
Qt Wayland Drivers:
  EGL .................................... yes
  Raspberry Pi ........................... no
  DRM EGL ................................ yes
  libhybris EGL .......................... no
  Linux dma-buf server buffer integration  yes
  Shm emulation server buffer integration  yes
  Vulkan-based server buffer integration . yes
Qt Wayland Client Shell Integrations:
  xdg-shell .............................. yes
  ivi-shell .............................. yes
  wl-shell (deprecated) .................. yes
  qt-shell ............................... yes
Qt Wayland Compositor Layer Plugins:
  VSP2 hardware layer integration ........ no
WebEngine Repository Build Options:
  Build Ninja ............................ no
  Build Gn ............................... yes
  Jumbo Build ............................ yes
  Developer build ........................ yes
  Build QtWebEngine Modules:
    Build QtWebEngineCore ................ yes
    Build QtWebEngineWidgets ............. yes
    Build QtWebEngineQuick ............... yes
  Build QtPdf Modules:
    Build QtPdfWidgets ................... yes
    Build QtPdfQuick ..................... yes
  Optional system libraries:
    re2 .................................. yes
    icu .................................. no
    libwebp, libwebpmux and libwebpdemux . yes
    opus ................................. yes
    ffmpeg ............................... no
    libvpx ............................... no
    snappy ............................... yes
    glib ................................. yes
    zlib ................................. yes
    minizip .............................. yes
    libevent ............................. no
    libxml2 and libxslt .................. yes
    lcms2 ................................ yes
    png .................................. yes
    jpeg ................................. yes
    harfbuzz ............................. no
    freetype ............................. yes
    libpci ............................... yes
Qt WebEngineCore:
  Embedded build ......................... no
  Full debug information ................. no
  Sanitizer support ...................... no
  Pepper Plugins ......................... yes
  Printing and PDF ....................... yes
  Proprietary Codecs ..................... yes
  Spellchecker ........................... yes
  WebRTC ................................. yes
  PipeWire over GIO ...................... no
  Geolocation ............................ yes
  WebChannel support ..................... yes
  Kerberos Authentication ................ no
  Extensions ............................. yes
  Support GLX on qpa-xcb ................. yes
  Use ALSA ............................... yes
  Use PulseAudio ......................... yes
Qt WebEngineQuick:
  UI Delegates ........................... yes
Qt PDF:
  Support V8 ............................. yes
  Support XFA ............................ yes
  Support XFA-BMP ........................ yes
  Support XFA-GIF ........................ yes
  Support XFA-PNG ........................ yes
  Support XFA-TIFF ....................... yes
  Bitcode support ........................ no
  Use static runtime ..................... no
 

-- Configuring done
-- Generating done