tce-load -i compiletc python3.8 libxml2-bin

wget https://xorg.freedesktop.org/archive/individual/proto/xcb-proto-1.15.tar.xz

cd xcb-proto-1.15

PYTHON=python3 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 --sysconfdir=/etc

make
make install