tce-load -i compiletc cyrus-sasl-dev spice-protocol libcacard-dev celt-dev gst-plugins-good gst-plugins-bad-dev gst-plugins-ugly gst-libav opus-dev orc-dev liblz4-dev

https://www.spice-space.org/download/releases/spice-0.14.2.tar.bz2

cd spice-0.14.2

CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --disable-static --localstatedir=/var --enable-smartcard --enable-gstreamer=1.0 --enable-celt051

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make [6m 32.18s]
sudo make install

        Spice 0.14.2
        ==============

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

        LZ4 support:              yes
        Smartcard:                yes
        GStreamer:                1.0
        SASL support:             yes
        Manual:                   no


configure: WARNING: The vp9enc GStreamer element(s) are missing. You should be able to find them in the gst-plugins-good 1.0 package.

configure: WARNING: The GStreamer video encoder can be built but may not work.