tce-load -i intltool gtk3-dev upower-dev

cd gnome-power-manager-3.22.0

CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe" ./configure --prefix=/usr/local --disable-static --localstatedir=/var

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

make
sudo make install

                    GNOME Power Manager 3.22.0
                  =============================

        prefix:                    /usr/local
        datadir:                   ${datarootdir}
        compiler:                  gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe
        cflags:                    -g -O2
        cppflags:                   -g -fexceptions
        Self test support:         no