tce-load -i compiletc curl-dev libxslt-dev icu70-dev yajl2-dev

wget https://download.librdf.org/source/raptor2-2.0.16.tar.gz

cd raptor2-2.0.16

CC="gcc -flto -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -flto -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --localstatedir=/var --disable-static

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

make [0m 18.86s]
sudo make install

Raptor build summary:
  RDF parsers available     : rdfxml ntriples turtle trig guess rss-tag-soup rdfa nquads grddl json
  RDF parsers enabled       : rdfxml ntriples turtle trig guess rss-tag-soup rdfa nquads grddl json
  RDF serializers available : rdfxml rdfxml-abbrev turtle mkr ntriples rss-1.0 dot html json atom nquads
  RDF serializers enabled   : rdfxml rdfxml-abbrev turtle mkr ntriples rss-1.0 dot html json atom nquads
  XML parser                : libxml 2.9.10 via xml2-config
  WWW library               : libcurl 8.4.0 via curl-config
  NFC check library         : ICU UC 70.1