tce-load -i intltool glib2-dev python-dev

cd gobject-introspection-1.42.0

CFLAGS="-march=i486 -mtune=i686 -Os -pipe" CXXFLAGS="-march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --disable-static

[-flto does not work]

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

make
sudo make install