Running nixpkgs-update (https://github.com/NixOS/infra/blob/main/non-critical-infra/modules/nixpkgs-update/README.md) with UPDATE_INFO: cairo 1.18.4 -> 1.18.6 https://repology.org/project/cairo-graphics-library/versions
attrpath: cairo
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Old version 1.18.4" not present in staging derivation file with contents: {
  lib,
  stdenv,
  fetchurl,
  lzo,
  gtk-doc,
  meson,
  ninja,
  pkg-config,
  python3,
  docbook_xsl,
  fontconfig,
  freetype,
  libpng,
  pixman,
  zlib,
  x11Support ? !stdenv.hostPlatform.isDarwin || true,
  libxext,
  libxrender,
  gobjectSupport ? true,
  glib,
  xcbSupport ? x11Support,
  libxcb,
  testers,
}:

let
  inherit (lib) optional optionals;
in
stdenv.mkDerivation (
  finalAttrs:
  let
    inherit (finalAttrs) pname version;
  in
  {
    pname = "cairo";
    version = "1.18.6";

    src = fetchurl {
      url = "https://cairographics.org/${
        if lib.mod (builtins.fromJSON (lib.versions.minor version)) 2 == 0 then "releases" else "snapshots"
      }/${pname}-${version}.tar.xz";
      hash = "sha256-HHZzCBdDN6dGlNoPPsBpwnFFIWOh70VAlkxQwwHxV9Q=";
    };

    outputs = [
      "out"
      "dev"
      "devdoc"
    ];
    outputBin = "dev"; # very small
    separateDebugInfo = true;

    nativeBuildInputs = [
      gtk-doc
      meson
      ninja
      pkg-config
      python3
    ];

    buildInputs = [
      docbook_xsl
      lzo
    ];

    propagatedBuildInputs = [
      fontconfig
      freetype
      pixman
      libpng
      zlib
    ]
    ++ optionals x11Support [
      libxext
      libxrender
    ]
    ++ optionals xcbSupport [ libxcb ]
    ++ optional gobjectSupport glib; # TODO: maybe liblzo but what would it be for here?

    mesonFlags = [
      "-Dgtk_doc=true"

      # error: #error config.h must be included before this header
      "-Dsymbol-lookup=disabled"

      # Only used in tests, causes a dependency cycle
      "-Dspectre=disabled"

      (lib.mesonEnable "glib" gobjectSupport)
      (lib.mesonEnable "tests" finalAttrs.finalPackage.doCheck)
      (lib.mesonEnable "xlib" x11Support)
      (lib.mesonEnable "xcb" xcbSupport)
    ]
    ++ lib.optionals (!stdenv.buildPlatform.canExecute stdenv.hostPlatform) [
      "--cross-file=${builtins.toFile "cross-file.conf" ''
        [properties]
        ipc_rmid_deferred_release = ${
          {
            linux = "true";
            freebsd = "true";
          }
          .${stdenv.hostPlatform.parsed.kernel.name} or "false"
        }
      ''}"
    ];

    preConfigure = ''
      patchShebangs version.py
    '';

    enableParallelBuilding = true;

    doCheck = false; # fails

    postInstall = ''
      # Work around broken `Requires.private' that prevents Freetype
      # `-I' flags to be propagated.
      sed -i "$out/lib/pkgconfig/cairo.pc" \
          -es'|^Cflags:\(.*\)$|Cflags: \1 -I${freetype.dev}/include/freetype2 -I${freetype.dev}/include|g'
    '';

    passthru.tests.pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;

    meta = {
      description = "2D graphics library with support for multiple output devices";
      mainProgram = "cairo-trace";
      longDescription = ''
        Cairo is a 2D graphics library with support for multiple output
        devices.  Currently supported output targets include the X
        Window System, XCB, Quartz, Win32, image buffers, PostScript,
        PDF, and SVG file output.

        Cairo is designed to produce consistent output on all output
        media while taking advantage of display hardware acceleration
        when available (e.g., through the X Render Extension).
      '';
      homepage = "http://cairographics.org/";
      license = with lib.licenses; [
        lgpl2Plus
        mpl10
      ];
      pkgConfigModules = [
        "cairo-pdf"
        "cairo-ps"
        "cairo-svg"
      ]
      ++ lib.optional gobjectSupport "cairo-gobject";
      platforms = lib.platforms.all;
    };
  }
)