tce-load -i intltool gtk3-dev gtk3-gir gobject-introspection-dev

cd libpeas-1.8.1

patch -Np1 -i ../libpeas-1.8.1-gjs_fixes-1.patch

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

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

make
sudo make install

Configuration:

        Source code location          : .
        Compiler                      : gcc -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe
        Installation prefix           : /usr/local
        Build libpeas-gtk             : yes
        Coverage testing              : no (disabled, use --enable-gcov to enable)
        Glade Catalog                 : no
        Disable deprecated features   : yes

Languages support:

        Python 2 support              : no (PyGObject not found)
        Python 3 support              : no (python3 not found)
        Javascript support (Seed)     : no
        Javascript support (GJS)      : no