tce-load -i compiletc

http://github.com/unicode-org/icu/releases/download/release-67-1/icu4c-67_1-src.tgz

cd icu/source

comment out the LDFLAGSICUDT flag in config/mh-linux

CC="gcc -march=armv8-a+crc -Os -pipe" CXX="g++ -march=armv8-a+crc -Os -pipe" ./configure --prefix=/usr/local --localstatedir=/var

[-fno-rtti fails]

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

make [17m 32.18s]
sudo make install