tce-load -i compiletc python3.8-meson pango-dev gdk-pixbuf-dev at-spi2-atk-dev libepoxy-dev libxkbcommon-dev graphene-dev gobject-introspection-dev iso-codes libXrandr-dev libXcursor-dev libXinerama-dev libsass cups-dev gst-plugins-bad-dev pango-gir gdk-pixbuf-gir atk-gir at-spi2-core-gir graphene-gir py3.8gobject-dev

wget https://download.gnome.org/sources/gtk/4.6/gtk-4.6.5.tar.xz

cd gtk-4.6.5

mkdir build
cd build

CC="gcc -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" meson --prefix=/usr/local --localstatedir=/var --buildtype=plain -Dbroadway-backend=true -Dvulkan=enabled

[-fno-rtti fails]

ninja [23m 0.73s]
sudo ninja install

gtk 4.6.5

    Display backends: broadway
                      wayland
                      x11
    Print backends  : cups
                      file
    Media backends  : gstreamer

  Features
    Vulkan support  : True
    Cloud support   : False
    Sysprof support : False
    Colord support  : False
    Tracker support : False

  Toolchain
    Compiler        : gcc
    Linker          : ld.bfd

  Build
    Debugging       : False
    Optimization    : 0
    Introspection   : True
    Documentation   : False
    Man pages       : False
    Tests           : True
    Install tests   : False
    Demos           : True
    Examples        : True

  Directories
    prefix          : /usr/local
    includedir      : /usr/local/include
    libdir          : /usr/local/lib
    datadir         : /usr/local/share

  Subprojects
    gi-docgen       : NO python3 is missing modules: jinja2, markdown, markupsafe, pygments, toml, typogrify

  User defined options
    buildtype       : plain
    localstatedir   : /var
    prefix          : /usr/local
    broadway-backend: true
    vulkan          : enabled