tce-load -i compiletc xorg-proto

wget https://www.x.org/pub/individual/lib/libXau-1.0.12.tar.xz

cd libXau-1.0.12

CC="gcc -flto -mtune=generic -Os -pipe" CXX="g++ -flto -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --disable-static --localstatedir=/var --sysconfdir=/etc

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

make [0m 0.74s]
sudo make install