tce-load -i compiletc meson intltool gsettings-desktop-schemas-dev openssl-dev gnutls38-dev

wget https://download.gnome.org/sources/glib-networking/2.78/glib-networking-2.78.0.tar.xz

cd glib-networking-2.78.0

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 -Dlibproxy=disabled -Dgnutls=enabled -Dopenssl=enabled

ninja [0m 8.81s]
sudo ninja install

glib-networking 2.78.0

    GnuTLS support           : YES
    OpenSSL support          : YES
    Environment proxy support: NO
    libproxy support         : NO
    GNOME proxy support      : YES

  User defined options
    buildtype                : plain
    localstatedir            : /var
    prefix                   : /usr/local
    gnutls                   : enabled
    libproxy                 : disabled
    openssl                  : enabled