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

cd baobab-3.8.2

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

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

make
sudo make install

    Baobab 3.8.2

    prefix: /usr/local
    Vala compiler: valac
    C compiler: gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe