tce-load -i compiletc

wget https://github.com/hyperrealm/libconfig/releases/download/v1.7.3/libconfig-1.7.3.tar.gz

cd libconfig-1.7.3

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

[-fno-exceptions fails]

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

make [0m 33.32s]
sudo make install