tce-load -i compiletc glib2-dev vala-dev

wget https://archive.xfce.org/src/xfce/libxfce4util/4.20/libxfce4util-4.20.1.tar.bz2

cd libxfce4util-4.20.1

CC="gcc -flto -mtune=generic -Os -pipe" CXX="g++ -flto -mtune=generic -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 5.80s]
sudo make install