tce-load -i compiletc 

http://bitmath.org/code/mtdev/mtdev-1.1.6.tar.bz2

cd mtdev-1.1.6

CC="gcc -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --disable-static --localstatedir=/var --sysconfdir=/etc --build=aarch64-unknown-linux

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

make [0m 4.04s]
make install