tce-load -i compiletc cmake perl5 intltool clang desktop-file-utils libxslt-dev pugixml-dev gtk3-dev lensfun-dev libgphoto2-dev librsvg-dev exiv2-dev openjpeg-dev iso-codes libsecret-dev sdl2-dev lua-dev bash

wget https://github.com/darktable-org/darktable/releases/download/release-5.2.1/darktable-5.2.1.tar.xz

cd darktable-5.2.1

mkdir build
cd build

sudo ln -s /tmp/tcloop/gcc_libs-dev/usr/local/lib/libgomp.spec /usr/lib

cmake -LAH -DCMAKE_C_FLAGS_RELEASE="-flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" -DCMAKE_CXX_FLAGS_RELEASE="-flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" -DCMAKE_INSTALL_PREFIX=/usr/local -DCMAKE_INSTALL_LOCALSTATEDIR=/var -DCMAKE_BUILD_TYPE=Release -DCMAKE_VERBOSE_MAKEFILE=TRUE ../

find . -name flags.make -type f -exec sed -i 's/-march=native  -g//g' {} \;
find . -name flags.make -type f -exec sed -i 's/-O3//g' {} \;
find . -name link.txt -type f -exec sed -i 's/-march=native  -g//g' {} \;
find . -name link.txt -type f -exec sed -i 's/-O3//g' {} \;

make [23m 31.14s]
sudo make install

----

clinfo --list
Platform #0: rusticl
 `-- Device #0: V3D 7.1.10.2

RUSTICL_ENABLE=v3d OCL_IGNORE_SELF_TEST=1 darktable -d opencl
darktable 5.2.1
Copyright (C) 2012-2025 Johannes Hanika and other contributors.

Compile options:
  Bit depth              -> 64 bit
  Exiv2                  -> 0.27.7
  Lensfun                -> 0.3.4
  Debug                  -> DISABLED
  SSE2 optimizations     -> DISABLED
  OpenMP                 -> ENABLED
  OpenCL                 -> ENABLED
  Lua                    -> ENABLED  - API version 9.5.0
  Colord                 -> DISABLED
  gPhoto2                -> ENABLED
  OSMGpsMap              -> DISABLED - map view is NOT available
  GMIC                   -> DISABLED - Compressed LUTs are NOT supported
  GraphicsMagick         -> DISABLED
  ImageMagick            -> DISABLED
  libavif                -> DISABLED
  libheif                -> DISABLED
  libjxl                 -> DISABLED
  LibRaw                 -> ENABLED  - Version 0.22.0-Devel202502
  OpenJPEG               -> ENABLED
  OpenEXR                -> DISABLED
  WebP                   -> ENABLED

See https://www.darktable.org/resources/ for detailed documentation.
See https://github.com/darktable-org/darktable/issues/new/choose to report bugs.

     0.0001 [dt starting]
 darktable -d opencl
     0.3343 [opencl_init] opencl disabled via darktable preferences
     0.3391 [opencl_init] opencl library 'libOpenCL' found on your system and loaded, preference 'default path'
     0.4645 [opencl_init] found 1 platform
[opencl_init] found 1 device

[dt_opencl_device_init]
OpenCL Mesa platform `Mesa/X.org' --> `V3D 7.1.10.2'
   DEVICE:                   0: 'V3D 7.1.10.2', NEW
   CONF KEY:                 cldevice_v5_rusticlv3d71102
   PLATFORM, VENDOR & ID:    rusticl, Mesa:Mesa/X.org, ID=5348
   CANONICAL NAME:           rusticlv3d71102
   DRIVER VERSION:           25.0.5
   DEVICE VERSION:           OpenCL 3.0 
   DEVICE_TYPE:              GPU, unified mem
   *** The OpenCL driver doesn't provide image support. See also 'clinfo' output ***
[opencl_init] no suitable devices found.
     0.4649 [opencl_init] FINALLY: opencl PREFERENCE=OFF is NOT AVAILABLE and NOT ENABLED.

clinfo | grep -i image
  Image support                                   No

Coming in mesa 25.2.x?

----

-- The following features have been enabled:

 * OpenMP-based threading, used for parallelization of the library
 * XML reading, used for loading of data/cameras.xml
 * Lossy JPEG decoding, used for DNG Lossy JPEG compression decoding
 * ZLIB decoding, used for DNG Deflate compression decoding

-- The following OPTIONAL packages have been found:

 * FFI
 * zstd
 * LLVM
 * Gphoto2 (required version >= 2.5)
 * WebP (required version >= 0.3.0)
 * OpenJPEG
 * IsoCodes (required version >= 3.66)
 * Libsecret
 * Lua54 (required version >= 5.4)
 * Cups
 * SDL2, low level access to audio, keyboard, mouse, joystick, and graphics hardware, <https://www.libsdl.org/>
 * X11

-- The following REQUIRED packages have been found:

 * Threads
 * Gettext
 * GTK3 (required version >= 3.24.15)
 * LibXml2 (required version >= 2.6)
 * LensFun
 * SQLite3 (required version >= 3.26)
 * GIO
 * GThread
 * GModule
 * PangoCairo
 * Rsvg2
 * PNG
 * TIFF
 * LCMS2
 * JsonGlib
 * CURL (required version >= 7.56)
 * Exiv2 (required version >= 0.27.2)
 * Pugixml (required version >= 1.5), Light-weight, simple and fast XML parser, <http://pugixml.org/>
   Used for loading of data/cameras.xml
 * Glib
 * ZLIB, software library used for data compression
   Used for decoding DNG Deflate compression
 * JPEG, free library for handling the JPEG image data format, implements a JPEG codec
   Used for decoding DNG Lossy JPEG compression
 * OpenMP, Open Multi-Processing, <https://www.openmp.org/>
   Used for parallelization of the library

-- The following OPTIONAL packages have not been found:

 * Imath (required version >= 3.1)
 * OpenEXR
 * JXL (required version >= 0.7.0)
 * libavif
 * libheif (required version >= 1.13.0)
 * PortMidi, Portable MIDI library, <https://github.com/PortMidi/portmidi>
   Used for hardware MIDI input devices
 * GraphicsMagick
 * GMIC
 * ICU
 * OSMGpsMap
 * Colord