tce-load -wil compiletc python3.9 libnftnl-dev gmp-dev readline-dev jansson-dev

https://www.netfilter.org/projects/nftables/files/nftables-1.1.1.tar.xz

cd nftables-1.1.1

CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --localstatedir=/var --disable-static --disable-man-doc --with-python-bin=/usr/local/bin/python3 --with-json --with-cli=readline

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

make [0m 28.27s]
mkdir /tmp/dest
make DESTDIR=/tmp/dest install

nft configuration:
  cli support:			readline
  enable debugging symbols:	yes
  use mini-gmp:			no
  enable man page:              no
  libxtables support:		no
  json output support:          yes