tce-load -i intltool gnome-online-accounts-dev gobject-introspection-dev libgee-dev libgdata-dev evolution-dev vala-dev

cd california-0.1.2

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  --localstatedir=/var

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

make
sudo make install

Options:
        Unity support:          no