Enable native Wayland support

.github/workflows/linux.yml

@@ -31,7 +31,7 @@ jobs:
       CMAKE_VER: "3.16.3"
       UPLOAD_ARTIFACT: "false"
       ONLY_CACHE: "false"
-      MANUAL_CACHING: "5"
+      MANUAL_CACHING: "6"
       DOC_PATH: "docs/building-cmake.md"
 
     steps:
@@ -55,13 +55,13 @@ jobs:
           sudo apt-get install software-properties-common -y && \
           sudo apt-get install git libexif-dev liblzma-dev libz-dev libssl-dev \
           libgtk2.0-dev libice-dev libsm-dev libicu-dev libdrm-dev dh-autoreconf \
-          autoconf automake build-essential libass-dev libfreetype6-dev \
+          autoconf automake build-essential libxml2-dev libass-dev libfreetype6-dev \
           libgpac-dev libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev \
           libvorbis-dev libenchant-dev libxcb1-dev libxcb-image0-dev libxcb-shm0-dev \
           libxcb-xfixes0-dev libxcb-keysyms1-dev libxcb-icccm4-dev libatspi2.0-dev \
           libxcb-render-util0-dev libxcb-util0-dev libxcb-xkb-dev libxrender-dev \
-          libasound-dev libpulse-dev libxcb-sync0-dev libxcb-randr0-dev bison \
-          libx11-xcb-dev libffi-dev libncurses5-dev pkg-config texi2html yasm \
+          libasound-dev libpulse-dev libxcb-sync0-dev libxcb-randr0-dev libegl1-mesa-dev \
+          libx11-xcb-dev libffi-dev libncurses5-dev pkg-config texi2html bison yasm \
           zlib1g-dev xutils-dev python-xcbgen chrpath gperf wget -y --force-yes && \
           sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && \
           sudo apt-get update && \
@@ -350,6 +350,18 @@ jobs:
           cd ..
           rm -rf libxkbcommon
 
+      - name: Libwayland.
+        run: |
+          cd $LibrariesPath
+
+          git clone -b 1.16 https://gitlab.freedesktop.org/wayland/wayland
+          cd wayland
+          ./autogen.sh --enable-static --disable-documentation
+          make -j$(nproc)
+          sudo make install
+          cd ..
+          rm -rf wayland
+
       - name: Qt 5.12.5 cache.
         id: cache-qt
         uses: actions/cache@v1
@@ -363,8 +375,8 @@ jobs:
 
           git clone -b v5.12.5 --depth=1 git://code.qt.io/qt/qt5.git qt_${QT}
           cd qt_${QT}
-          perl init-repository --module-subset=qtbase,qtimageformats,qtsvg
-          git submodule update qtbase qtimageformats qtsvg
+          perl init-repository --module-subset=qtbase,qtwayland,qtimageformats,qtsvg
+          git submodule update qtbase qtwayland qtimageformats qtsvg
           cd qtbase
           git apply ../../patches/qtbase_${QT}.diff
           cd src/plugins/platforminputcontexts
@@ -386,7 +398,6 @@ jobs:
           -qt-xcb \
           -system-freetype \
           -fontconfig \
-          -no-opengl \
           -no-gtk \
           -static \
           -dbus-runtime \