tce-load -i compiletc automake libtool-dev intltool openssl-1.1.1-dev Xorg-7.7-3d-dev libvncserver-dev cairo-dev avahi-dev

https://github.com/LibVNC/x11vnc/archive/0.9.16.tar.gz

cd x11vnc-0.9.16

./autogen.sh

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

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

make [0m 23.42s]
sudo make install