tce-load -i compiletc

wget https://github.com/sass/libsass/archive/3.6.5/libsass-3.6.5.tar.gz

cd libsass-3.6.5

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

make CC="gcc -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" BUILD=shared [5m 30.26s]

[-fno-exceptions fails]

sudo make CC="gcc -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" BUILD=shared install