https://mirrors.edge.kernel.org/pub/linux/utils/net/iproute2/iproute2-5.6.0.tar.xz

tce-load -i bash db-dev iptables-dev compiletc pkg-config

cd iproute2-5.6.0

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

edit Makefile:
ROOTDIR=$(DESTDIR)
PREFIX=/usr/local
LIBDIR=$(PREFIX)/lib
SBINDIR=/usr/local/sbin
CONFDIR=/usr/local/etc/iproute2
DATADIR=$(PREFIX)/share
DOCDIR=$(DATADIR)/doc/iproute2
MANDIR=$(DATADIR)/man
ARPDDIR=/var/lib/arpd
# Path to db_185.h include
DBM_INCLUDE:=$(ROOTDIR)/usr/local/include

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

make
sudo make install