tce-load -i compiletc meson libvulkan-dev shaderc-dev lcms2-dev glad

wget https://github.com/haasn/libplacebo/archive/v7.349.0/libplacebo-7.349.0.tar.gz

cd libplacebo-7.349.0

sed -e "20s/$/,/" -e "21i cxx.find_library('glslang', required: false)" -i src/glsl/meson.build

mkdir build
cd build

CC="gcc -flto -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -flto -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti" meson setup --prefix=/usr/local --localstatedir=/var --buildtype=plain -Ddemos=false

ninja [0m 32.16s]
sudo ninja install

libplacebo 7.351.0

  Optional features
    d3d11        : NO
    dovi         : YES
    gl-proc-addr : YES
    glslang      : NO
    lcms         : YES
    libdovi      : NO
    opengl       : YES
    shaderc      : YES
    vk-proc-addr : YES
    vulkan       : YES
    xxhash       : NO

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