tce-load -i compiletc meson libvulkan-dev graphene-dev iso-codes gst-plugins-bad-dev gettext gobject-introspection-dev pango-gir gdk-pixbuf2-gir at-spi2-core-gir graphene-gir shaderc

wget https://download.gnome.org/sources/gtk/4.20/gtk-4.20.2.tar.xz

cd gtk-4.20.2

mkdir build
cd build

CC="gcc -flto -mtune=generic -Os -pipe" CXX="g++ -flto -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" meson setup --prefix=/usr/local --localstatedir=/var --buildtype=plain -Dbroadway-backend=true -Dcolord=enabled -Dvulkan=enabled -Dintrospection=enabled

ninja [1h 5m 30s]
sudo ninja install

gtk 4.20.2

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

  Features
    Vulkan support   : true
    Cloud support    : false
    Sysprof support  : false
    Colord support   : true
    Tracker support  : false
    AccessKit support: false

  Toolchain
    Compiler         : gcc
    Linker           : ld.bfd

  Build
    Debugging        : false
    Optimization     : plain
    Introspection    : true
    Documentation    : false
    Man pages        : false
    Testsuite        : true
    Tests            : true
    Demos            : true
    Examples         : true

  Directories
    Prefix           : /usr/local
    Includedir       : /usr/local/include
    Libdir           : /usr/local/lib
    Datadir          : /usr/local/share

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