tce-load -i compiletc meson gtk4-dev gtk4-gir gobject-introspection-dev vala-dev appstream-dev libsass

wget https://download.gnome.org/sources/libadwaita/1.6/libadwaita-1.6.9.tar.xz

cd libadwaita-1.6.9

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 -Dexamples=false

ninja [11m 57.20s]
sudo ninja install

libadwaita 1.6.9

  Options
    Tests        : true
    Examples     : false
    Documentation: false
    Introspection: true
    Vapi         : true

  User defined options
    buildtype    : plain
    examples     : false
    localstatedir: /var
    prefix       : /usr/local