tce-load -i compiletc meson evolution-data-server-dev gsettings-desktop-schemas-dev libadwaita-dev

wget https://download.gnome.org/sources/gnome-calendar/45/gnome-calendar-45.1.tar.xz

cd gnome-calendar-45.1

mkdir build
cd build

CC="gcc -flto -mtune=generic -Os -pipe" CXX="g++ -flto -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" meson --prefix=/usr/local --localstatedir=/var --buildtype=plain

ninja [0m 59.64s]
sudo ninja install

gnome-calendar 45.1

    Source       : /usr/src/gnome-calendar-45.1
    Prefix       : /usr/local

  Development
    Debug        : False
    Tracing      : False

  User defined options
    buildtype    : plain
    localstatedir: /var
    prefix       : /usr/local