tce-load -i compiletc upower-dev libnotify-dev xfce4-panel-dev

wget https://archive.xfce.org/src/xfce/xfce4-power-manager/4.20/xfce4-power-manager-4.20.0.tar.bz2

cd xfce4-power-manager-4.20.0

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

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

make [0m 33.78s]
sudo make install