tce-load -wi compiletc git libtool-dev readline-dev autoconf automake dbus-dev coreutils

https://github.com/illiliti/eiwd/archive/refs/tags/1.20-1.tar.gz

git clone git://git.kernel.org/pub/scm/libs/ell/ell.git [ell and eiwd-1.20-1 directories now exist inside same directory]
cd eiwd-1.20-1
ln -sf ../ell ell

./bootstrap

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 --sysconfdir=/usr/local/etc --libexecdir=/usr/local/bin --disable-systemd-service --disable-manual-pages --disable-dbus

sed -i 's/-O2//' Makefile

make [0m 59.53s]
sudo make install