opencollada: drop

Unmaintained upstream (no updates since 2018-11-26 (~7.5 years), and
unmaintained in Nixpkgs as well. Only one consumer where it is optional,
so disable the feature.

pkgs/by-name/op/opencollada/package.nix

@@ -1,77 +0,0 @@
-{
-  cmake,
-  dos2unix,
-  fetchFromGitHub,
-  fetchpatch,
-  lib,
-  libxml2,
-  pcre,
-  pkg-config,
-  stdenv,
-}:
-
-stdenv.mkDerivation (finalAttrs: {
-  pname = "opencollada";
-  version = "1.6.68";
-
-  src = fetchFromGitHub {
-    owner = "KhronosGroup";
-    repo = "OpenCOLLADA";
-    rev = "v${finalAttrs.version}";
-    sha256 = "1ym16fxx9qhf952vva71sdzgbm7ifis0h1n5fj1bfdj8zvvkbw5w";
-  };
-
-  # Fix freaky dos-style CLRF things
-  prePatch = ''
-    dos2unix CMakeLists.txt
-  '';
-
-  patches = [
-    # fix build with gcc 13
-    (fetchpatch {
-      url = "https://gitweb.gentoo.org/repo/gentoo.git/plain/media-libs/opencollada/files/opencollada-1.6.68-gcc13.patch?id=b76590f9fb8615da3da9d783ad841c0e3881a27b";
-      hash = "sha256-oi/QhNPRnuSHfJJ071/3wnjLeg4zZUL6NwSGYvgkb/k=";
-    })
-
-    # fix pcre
-    (fetchpatch {
-      url = "https://gitweb.gentoo.org/repo/gentoo.git/plain/media-libs/opencollada/files/opencollada-1.6.63-pcre-fix.patch";
-      hash = "sha256-igrwgmNwDKYwj6xWvWrryT5ARWJpztVmlQ0HCLQn5+Q=";
-    })
-
-    # fix build with cmake 4
-    (fetchpatch {
-      url = "https://gitweb.gentoo.org/repo/gentoo.git/plain/media-libs/opencollada/files/opencollada-1.6.68-cmake4.patch?id=42f1e0614c4d056841fdc162c29a04ff0e910139";
-      hash = "sha256-gbF6PPalJGgXGu4W7EptYeDq8418JdGH50LIqKqGKX0=";
-    })
-  ];
-
-  postPatch = ''
-    # Drop blanket -Werror as it tends to fail on newer toolchain for
-    # minor warnings. In this case it was gcc-13 build failure.
-    substituteInPlace DAEValidator/CMakeLists.txt --replace-fail ' -Werror"' '"'
-  ''
-  + lib.optionalString stdenv.hostPlatform.isDarwin ''
-    substituteInPlace GeneratedSaxParser/src/GeneratedSaxParserUtils.cpp \
-      --replace math.h cmath
-  '';
-
-  nativeBuildInputs = [
-    cmake
-    pkg-config
-    dos2unix
-  ];
-
-  propagatedBuildInputs = [
-    libxml2
-    pcre
-  ];
-
-  meta = {
-    description = "Library for handling the COLLADA file format";
-    homepage = "https://github.com/KhronosGroup/OpenCOLLADA/";
-    maintainers = [ ];
-    platforms = lib.platforms.unix;
-    license = lib.licenses.mit;
-  };
-})

pkgs/development/python-modules/ifcopenshell/default.nix

@@ -24,7 +24,6 @@
   mpfr,
   nlohmann_json,
   opencascade-occt_7_6,
-  opencollada,
   pcre,
   zlib,
 
@@ -102,7 +101,6 @@ buildPythonPackage rec {
     mpfr
     nlohmann_json
     opencascade-occt
-    opencollada
     pcre
   ];
 
@@ -138,12 +136,11 @@ buildPythonPackage rec {
     "-DBUILD_SHARED_LIBS=ON"
     "-DBUILD_IFCPYTHON=ON"
     "-DCITYJSON_SUPPORT=OFF"
+    "-DCOLLADA_SUPPORT=OFF"
     "-DEIGEN_DIR=${eigen}/include/eigen3"
     "-DJSON_INCLUDE_DIR=${nlohmann_json}/include/"
     "-DOCC_INCLUDE_DIR=${opencascade-occt}/include/opencascade"
     "-DOCC_LIBRARY_DIR=${lib.getLib opencascade-occt}/lib"
-    "-DOPENCOLLADA_INCLUDE_DIR=${opencollada}/include/opencollada"
-    "-DOPENCOLLADA_LIBRARY_DIR=${lib.getLib opencollada}/lib/opencollada"
     "-DSWIG_EXECUTABLE=${swig}/bin/swig"
     "-DLIBXML2_INCLUDE_DIR=${libxml2.dev}/include/libxml2"
     "-DLIBXML2_LIBRARIES=${lib.getLib libxml2}/lib/libxml2${stdenv.hostPlatform.extensions.sharedLibrary}"

pkgs/top-level/aliases.nix

@@ -1530,6 +1530,7 @@ mapAliases {
   openbabel3 = openbabel; # Added 2025-09-17
   openbsdCross = throw "'openbsdCross' has been renamed to/replaced by 'openbsd'"; # Converted to throw 2025-10-27
   opencl-clang = throw "opencl-clang has been integrated into intel-graphics-compiler"; # Added 2025-09-10
+  opencollada = throw "opencollada has been removed, as it is unmaintained upstream"; # Added 2026-04-26
   opencollada-blender = throw "opencollada-blender has been removed, as it is unmaintained upstream"; # Added 2026-04-26
   opencolorio_1 = throw "'opencolorio_1' has been removed. Use opencolorio instead"; # Added 2026-01-03
   openconnect_gnutls = throw "'openconnect_gnutls' has been renamed to/replaced by 'openconnect'"; # Converted to throw 2025-10-27