tce-load -i compiletc glib2-dev vala-dev intltool gobject-introspection-dev

wget https://archive.xfce.org/src/xfce/libxfce4util/4.18/libxfce4util-4.18.2.tar.bz2

cd libxfce4util-4.18.2

CC="gcc -flto -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -flto -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --disable-static --localstatedir=/var --disable-debug

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

make [0m 6.01s]
sudo make install

Build Configuration:

* Debug Support:  no
* GNU Visibility: yes