tce-load -i compiletc https://github.com/sass/libsass/archive/3.6.4/libsass-3.6.4.tar.gz cd libsass-3.6.4 find . -name Makefile -type f -exec sed -i 's/-O2//g' {} \; make CC="gcc -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" BUILD=shared [6m 53.37s] sudo make CC="gcc -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" BUILD=shared install