tce-load -i compiletc libXext-dev

wget https://www.x.org/archive//individual/lib/libXScrnSaver-1.2.3.tar.bz2

cd libXScrnSaver-1.2.3

CC="gcc -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --localstatedir=/var --sysconfdir=/etc --disable-static

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

make [0m 2.01s]
make install