tce-load -i compiletc meson libgee-dev evolution-data-server-dev vala-dev gobject-introspection-dev intltool readline-dev libgee-gir evolution-data-server-gir

https://ftp.gnome.org/pub/GNOME/sources/folks/0.14/folks-0.14.0.tar.xz

cd folks-0.14.0

mkdir build
cd build

CC="gcc -mtune=generic -Os -pipe" CXX="g++ -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" meson --prefix=/usr/local --localstatedir=/var --buildtype=plain -Dbluez_backend=false [otherwise needs dbusmock] -Dtelepathy_backend=false

ninja [0m 47.82s]
sudo ninja install

[lto causes folks to fail at run time with cannot register existing type 'FolksSmallSet']