tce-load -i compiletc meson gnome-desktop-dev 

cd gnome-font-viewer-3.28.0

mkdir build
cd build

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

ninja
sudo ninja install

        GNOME Font Viewer 3.22.0
        ==========================

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

        Now type 'make' to build gnome-font-viewer