tce-load -i compiletc python3.6-dev

https://www.riverbankcomputing.com/static/Downloads/sip/4.19.17/sip-4.19.17.tar.gz

cd sip-4.19.17

python3 configure.py --sip-module=PyQt5.sip

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

make CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe"

sudo make CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe" install