tce-load -i compiletc intltool cairo-dev exo-dev garcon-dev libwnck-dev gobject-introspection-dev vala-dev

wget https://archive.xfce.org/src/xfce/xfce4-panel/4.18/xfce4-panel-4.18.6.tar.bz2

cd xfce4-panel-4.18.6

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 [1m 1.55s]
sudo make install

Build Configuration:

* Debug Support:          no
* GNU Visibility:         yes