tce-load -i compiletc meson glib2-dev gobject-introspection-dev

wget https://gstreamer.freedesktop.org/src/gstreamer/gstreamer-1.26.2.tar.xz

cd gstreamer-1.26.2

patch -Rp3 -i ../gstreamer_lib.diff

mkdir build
cd build

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

[-Dgst_debug=false breaks webkit]

ninja [1m 42.70s]
sudo ninja install

gstreamer 1.26.2

    Plugins      : coreelements, coretracers

  User defined options
    buildtype    : plain
    doc          : disabled
    libexecdir   : /usr/local/lib
    localstatedir: /var
    prefix       : /usr/local