tce-load -i compiletc bzip2-dev

https://downloads.sourceforge.net/infozip/unzip60.tar.gz
http://www.linuxfromscratch.org/patches/blfs/svn/unzip-6.0-consolidated_fixes-1.patch

cd unzip60

patch -Np1 -i ../unzip-6.0-consolidated_fixes-1.patch

find . -name Makefile -type f -exec sed -i 's/-O3//g' {} \;

edit unix/Makefile
CC = gcc -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe
CFLAGS =

make -f unix/Makefile generic [0m 36.70s]
sudo make prefix=/usr/local MANDIR=/usr/local/share/man/man1 -f unix/Makefile install