Compiled on RPI4B-8G with 6.6.47-piCore-v8

Dependencies:
clang
libarchive-dev
lld

Commands:

# bypass iconv test
grep -v 'Requires.private' /usr/local/lib/pkgconfig/libarchive.pc > /tmp/copy
sudo cp -f /tmp/copy /usr/local/lib/pkgconfig/libarchive.pc

wget --no-check-certificate https://github.com/vasi/pixz/releases/download/v1.0.7/pixz-1.0.7.tar.gz

tar -xf pixz-1.0.7.tar.gz

cd pixz-1.0.7/

./configure --prefix=/usr/local CC='clang --gcc-install-dir=/usr/local/lib/gcc/armv7l-unknown-linux-gnueabihf/13.2.0' \
  CFLAGS='-march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -Os -pipe -fno-exceptions -flto=full' \
  LDFLAGS='-Wl,-L/usr/local/lib -fuse-ld=lld -Wl,-O1 -Wl,-rpath=/usr/local/lib'

time make -j4
real    0m 2.88s
user    0m 5.58s
sys     0m 0.39s

make install DESTDIR=/tmp/packing

llvm-strip --strip-unneeded /tmp/packing/usr/local/bin/pixz