tce-load -i compiletc meson libxfce4-ui-dev gobject-introspection-dev libstartup-notification-dev

wget https://download.gnome.org/sources/libwnck/43/libwnck-43.0.tar.xz

cd libwnck-43.0

mkdir build
cd build

CC="gcc -flto -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -flto -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti" meson --prefix=/usr/local --localstatedir=/var --buildtype=plain

ninja [0m 16.73s]
sudo ninja install

pycairo 1.25.1

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