tce-load -i compiletc meson libdrm-dev wayland-protocols-dev libXvmc-dev libXdamage-dev libxshmfence-dev libXxf86vm-dev libXrandr-dev gettext libelf-dev zstd-dev glslang python3.11-mako python3.11-pyyaml libdisplay-info-dev

[ensure llvm* is not present or libgallium will link against it]

wget https://mesa.freedesktop.org/archive/mesa-26.1.3.tar.xz
wget https://www.linuxfromscratch.org/patches/blfs/svn/mesa-add_xdemos-4.patch

cd mesa-26.1.3

patch -Np1 -i ../mesa-add_xdemos-4.patch

mkdir build
cd build

CC="gcc -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe -DNDEBUG" meson --prefix=/usr/local --buildtype=plain -Dvalgrind=disabled -Dplatforms="x11,wayland" -Dgallium-drivers="vc4,v3d,virgl,zink" -Dvulkan-drivers="broadcom" -Dlibunwind=disabled -Dvideo-codecs="h264dec,h265dec" ../

[-fno-rtti fails]

ninja [10m 53.27s]
sudo ninja install

mesa 26.1.3

  Directories
    prefix           : /usr/local
    libdir           : lib
    includedir       : include

  Common C and C++ arguments
    c_cpp_args       : -mtls-dialect=desc

  OpenGL
    OpenGL           : YES
    ES1              : YES
    ES2              : YES
    GLVND            : NO

  DRI
    Platform         : drm
    Driver dir       : /usr/local/lib/dri

  GLX
    Enabled          : YES
    Provider         : dri

  EGL
    Enabled          : YES
    Drivers          : builtin:egl_dri2 builtin:egl_dri3
    Platforms        : x11 wayland surfaceless drm xcb

  GBM
    Enabled          : YES
    External libgbm  : NO
    Backends path    : /usr/local/lib/gbm

  Vulkan
    Drivers          : broadcom
    Platforms        : x11 wayland surfaceless drm xcb
    ICD dir          : share/vulkan/icd.d
    Intel Ray tracing: NO

  Video
    Codecs           : h264dec h265dec
    APIs             : vulkan

  LLVM
    Required         : auto

  Gallium
    Enabled          : YES
    Drivers          : vc4 v3d virgl zink
    Platforms        : x11 wayland surfaceless drm xcb
    Frontends        : mesa
    HUD lm-sensors   : NO

  Perfetto
    Enabled          : NO

  Teflon (TensorFlow Lite delegate)
    Enabled          : NO

  Subprojects
    llvm             : NO Neither a subproject directory nor a llvm.wrap file was found.

  User defined options
    buildtype        : plain
    gallium-drivers  : vc4,v3d,virgl,zink
    libunwind        : disabled
    platforms        : x11,wayland
    prefix           : /usr/local
    valgrind         : disabled
    video-codecs     : h264dec,h265dec
    vulkan-drivers   : broadcom