tce-load -i compiletc libdisplay-info-dev libwnck-dev xfce4-dev-tools gobject-introspection-dev gtk3-gir

wget https://archive.xfce.org/src/xfce/libxfce4windowing/4.20/libxfce4windowing-4.20.5.tar.bz2

cd libxfce4windowing-4.20.5

CC="gcc -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --localstatedir=/var --disable-static --disable-gtk-doc-html

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make [0m 35.44s]
sudo make install

Build Configuration:
* X11 support:                   yes
* Wayland support:               yes
* Debug support:                 minimum
* GObject Introspection support: yes
* Documentation support:         no
* Test programs:                 no