core/pkgs/by-name/li/libjpeg-turbo/default.nix

{
  lib,
  stdenv,
  fetchFromGitHub,
  fetchpatch,
  cmake,
  nasm,
  openjdk,
  enableJava ? false, # whether to build the java wrapper
  enableJpeg7 ? false, # whether to build libjpeg with v7 compatibility
  enableJpeg8 ? false, # whether to build libjpeg with v8 compatibility
  enableStatic ? stdenv.hostPlatform.isStatic,
  enableShared ? !stdenv.hostPlatform.isStatic,

# for passthru.tests
# , dvgrab
# , epeg
# , freeimage
# , gd
# , graphicsmagick
# , imagemagick
# , imlib2
# , jhead
# , libjxl
# , mjpegtools
# , opencv
# , python3
# , vips
# , testers
}:

assert !(enableJpeg7 && enableJpeg8); # pick only one or none, not both

stdenv.mkDerivation (finalAttrs: {

  pname = "libjpeg-turbo";
  version = "3.0.2";

  src = fetchFromGitHub {
    owner = "libjpeg-turbo";
    repo = "libjpeg-turbo";
    rev = finalAttrs.version;
    hash = "sha256-xHjd0WHN50b75wdWPHUwfmJGsiWKmj+zA59UwakIo74=";
  };

  patches =
    [
      (fetchpatch {
        name = "CMAKE_CROSSCOMPILING_EMULATOR=env-fix.patch";
        url = "https://github.com/libjpeg-turbo/libjpeg-turbo/compare/36c51dd3eb60ebde3ca77d3cfa7df3422f1aaaf1..b6ee1016abbc55116304ad396cf88aa19391e10a.patch";
        hash = "sha256-dNwXicvZEsG02TBaM5nYMlZ+VczT/Dfx6ZM/6huZpwE=";
      })

      # This is needed by freeimage
      ./0001-Compile-transupp.c-as-part-of-the-library.patch
    ]
    ++ lib.optionals (!stdenv.hostPlatform.isMinGW) [
      ./0002-Make-exported-symbols-in-transupp.c-weak.patch
    ]
    ++ lib.optionals stdenv.hostPlatform.isMinGW [ ./mingw-boolean.patch ];

  outputs = [
    "bin"
    "dev"
    "dev_private"
    "out"
    "man"
    "doc"
  ];

  postFixup = ''
    moveToOutput include/transupp.h $dev_private
  '';

  nativeBuildInputs = [
    cmake
    nasm
  ] ++ lib.optionals enableJava [ openjdk ];

  cmakeFlags =
    [
      "-DENABLE_STATIC=${if enableStatic then "1" else "0"}"
      "-DENABLE_SHARED=${if enableShared then "1" else "0"}"
    ]
    ++ lib.optionals enableJava [ "-DWITH_JAVA=1" ]
    ++ lib.optionals enableJpeg7 [ "-DWITH_JPEG7=1" ]
    ++ lib.optionals enableJpeg8 [ "-DWITH_JPEG8=1" ]
    ++ lib.optionals stdenv.hostPlatform.isRiscV [
      # https://github.com/libjpeg-turbo/libjpeg-turbo/issues/428
      # https://github.com/libjpeg-turbo/libjpeg-turbo/commit/88bf1d16786c74f76f2e4f6ec2873d092f577c75
      "-DFLOATTEST=fp-contract"
    ];

  doInstallCheck = true;
  installCheckTarget = "test";

  # passthru.tests = {
  #   inherit
  #     dvgrab
  #     epeg
  #     freeimage
  #     gd
  #     graphicsmagick
  #     imagemagick
  #     imlib2
  #     jhead
  #     libjxl
  #     mjpegtools
  #     opencv
  #     vips;
  #   inherit (python3.pkgs) pillow imread pyturbojpeg;
  #   pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;
  # };

  meta = with lib; {
    homepage = "https://libjpeg-turbo.org/";
    description = "A faster (using SIMD) libjpeg implementation";
    license = licenses.ijg; # and some parts under other BSD-style licenses
    pkgConfigModules = [
      "libjpeg"
      "libturbojpeg"
    ];
    maintainers = with maintainers; [
      vcunat
      colemickens
      kamadorueda
    ];
    platforms = platforms.all;
  };
})