tce-load -i compiletc meson gtk4mm-dev pulseaudio-dev

wget https://www.freedesktop.org/software/pulseaudio/pavucontrol/pavucontrol-6.1.tar.xz

cd pavucontrol-6.1

mkdir build
cd build

CC="gcc -flto -march=armv8-a+crc -mtune=cortex-a53 -Os -pipe" CXX="g++ -flto -march=armv8-a+crc -mtune=cortex-a53 -Os -pipe" meson setup --prefix=/usr/local --localstatedir=/var --buildtype=plain -Dlynx=false ../

[-fno-rtti fails]

ninja [0m 29.42s]
sudo ninja install

pavucontrol 6.1

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