x11vnc `stack smashing detected` - disable detection, as a non-root user

x11vnc-stack-smashing-detected-solution.mk

# On my system, I don't have root access. So here's how I built it
# as a non-root user, without `sudo` or the ability to
# install packages, although many packages were already installed.
#
# In particular, I had to download and build LibVNCServer,
# and configure x11vnc to use it the one I had built

mkdir -p ~/bin/x11vnc

cd ~/bin/x11vnc
wget https://github.com/LibVNC/libvncserver/archive/refs/tags/LibVNCServer-0.9.13.zip
unzip LibVNCServer-0.9.13.zip
cd libvncserver-LibVNCServer-0.9.13/
mkdir build
cd build
cmake ..
cmake --build .
cd ~/bin/v11vnc
wget https://github.com/LibVNC/x11vnc/archive/refs/tags/0.9.16.zip
unzip 0.9.16.zip
cd x11vnc-0.9.16
autoreconf -fiv
set VNCSROOT=$HOME/bin/x11vnc/libvncserver-LibVNCServer-0.9.13
env LIBVNCSERVER_CFLAGS="-L $VNCSROOT/build/ -I $VNCSROOT -I $VNCSROOT/build" \
    LIBVNCSERVER_LIBS="-lvncserver" \
    LIBVNCCLIENT_CFLAGS="-I $VNCSROOT/build" \
    LIBVNCCLIENT_LIBS="-L $VNCSROOT/build/ -lvncclient" \
    ./configure \
    --prefix=$HOME/bin/x11vnc/installed \
    CFLAGS='-g -O2 -fno-stack-protector'
make -j
make install

# To run x11vnc from there, use:
# $HOME/bin/x11vnc/installed/bin/x11vnc