在Raspberry Pi上本地编译QtWebEngine

Question

我正在尝试在Raspberry Pi 3上编译QtWebEngine。整个Qt库都已编译正常，但是当我尝试使用QtWebEngine在目录中运行make时，会得到以下信息：

pi@raspberrypi:~/qt5/qtwebengine$ /usr/local/qt5/bin/qmake 

Running configuration tests...
Done running configuration tests.

Configure summary:

Qt WebEngine:
  Embedded build ......................... yes
  Pepper Plugins ......................... no
  Printing and PDF ....................... no
  Proprietary Codecs ..................... no
  Spellchecker ........................... yes
  Native Spellchecker .................... no
  WebRTC ................................. no
  Use System Ninja ....................... no
  Geolocation ............................ no
  WebChannel support ..................... yes
  Use v8 snapshot ........................ yes
  Kerberos Authentication ................ no
  Building v8 snapshot supported ......... yes
  Use ALSA ............................... yes
  Use PulseAudio ......................... no
      Optional system libraries used:
    re2 .................................. no
    icu .................................. no
    libwebp, libwebpmux and libwebpdemux . no
    opus ................................. no
    ffmpeg ............................... no
    libvpx ............................... no
    snappy ............................... no
    glib ................................. no
    zlib ................................. no
    minizip .............................. no
    libevent ............................. no
    jsoncpp .............................. no
    protobuf ............................. no
    libxml2 and libxslt .................. no
    lcms2 ................................ no
    png .................................. no
    JPEG ................................. yes
    harfbuzz ............................. no
    freetype ............................. no
    x11 .................................. no
  Required system libraries:
    fontconfig ........................... no
    dbus ................................. no
    nss .................................. no
    khr .................................. yes
    glibc ................................ yes
  Required system libraries for qpa-xcb:
    libdrm ............................... no
    xcomposite ........................... no
    xcursor .............................. no
    xi ................................... no
    xtst ................................. no

WARNING: Thumb instruction set is required to build ffmpeg for QtWebEngine.

Qt is now configured for building. Just run 'make'.
Once everything is built, you must run 'make install'.
Qt will be installed into '/usr/local/qt5'.

Prior to reconfiguration, make sure you remove any leftovers from
the previous build.


pkg-config is required
QtWebEngine will not be built.

问题：

1. 为什么无法编译？因为有fontconfig，dbus和nss库？

2. 我已经尝试安装libfontconfig1-dev，但是已经安装了。与dbus和nss相同。

3. 我在做什么错了？

Answer 1

您缺少pkg-config，并且未检测到库。注意“ pkg-config是必需的”。您很有可能在没有pkg-config支持的情况下编译了qt。