[cgal] add eigen3/tbb/ceres/openmesh features, split qt-svg out of qt

ports/cgal/usage

@@ -3,3 +3,37 @@ The package cgal provides CMake targets:
     find_package(CGAL CONFIG REQUIRED)
     target_link_libraries(main PRIVATE CGAL::CGAL)
 
+Each optional feature below requires linking its support target explicitly, per-target.
+find_package() uses CONFIG REQUIRED: enabling one of these features guarantees the
+dependency is installed, so treat it as mandatory rather than probing for it.
+
+"eigen3":
+
+    find_package(Eigen3 CONFIG REQUIRED)
+    include(CGAL_Eigen3_support)
+    target_link_libraries(main PRIVATE CGAL::Eigen3_support)
+
+"qt" ("qt-svg" needs no extra CMake, it's picked up automatically):
+
+    find_package(Qt6 CONFIG REQUIRED COMPONENTS OpenGL OpenGLWidgets Widgets OPTIONAL_COMPONENTS Svg)
+    include(CGAL_SetupCGAL_Qt6Dependencies)
+    target_link_libraries(main PRIVATE Qt6::Widgets CGAL::Qt6_moc_and_resources Qt6::OpenGLWidgets)
+    CGAL_setup_CGAL_Qt6_dependencies(main)
+
+"tbb":
+
+    find_package(TBB CONFIG REQUIRED)
+    include(CGAL_TBB_support)
+    target_link_libraries(main PRIVATE CGAL::TBB_support)
+
+"ceres":
+
+    find_package(Ceres CONFIG REQUIRED)
+    include(CGAL_Ceres_support)
+    target_link_libraries(main PRIVATE CGAL::Ceres_support)
+
+"openmesh":
+
+    find_package(OpenMesh CONFIG REQUIRED)
+    include(CGAL_OpenMesh_support)
+    target_link_libraries(main PRIVATE CGAL::OpenMesh_support)

ports/cgal/vcpkg.json

@@ -1,9 +1,10 @@
 {
   "name": "cgal",
   "version": "6.2",
+  "port-version": 1,
   "description": "The Computational Geometry Algorithms Library (CGAL) is a C++ library that aims to provide easy access to efficient and reliable algorithms in computational geometry.",
   "homepage": "https://github.com/CGAL/cgal",
-  "license": "GPL-3.0-or-later AND LGPL-3.0-or-later AND BSL-1.0",
+  "license": "GPL-3.0-or-later AND LGPL-3.0-or-later AND BSL-1.0 AND MIT",
   "supports": "!xbox",
   "dependencies": [
     "boost-accumulators",
@@ -63,17 +64,54 @@
     "zlib"
   ],
   "features": {
+    "ceres": {
+      "description": "Ceres Solver integration for nonlinear least-squares optimization in mesh processing algorithms",
+      "dependencies": [
+        "ceres"
+      ]
+    },
+    "eigen3": {
+      "description": "Eigen3 library integration",
+      "dependencies": [
+        "eigen3"
+      ]
+    },
+    "openmesh": {
+      "description": "OpenMesh library integration",
+      "dependencies": [
+        "openmesh"
+      ]
+    },
     "qt": {
-      "description": "Qt GUI support for CGAL",
+      "description": "Qt GUI support",
       "dependencies": [
-        "eigen3",
         {
           "name": "qtbase",
-          "default-features": false
+          "default-features": false,
+          "features": [
+            "widgets"
+          ]
+        }
+      ]
+    },
+    "qt-svg": {
+      "description": "SVG icon support for the Qt GUI feature",
+      "dependencies": [
+        {
+          "name": "cgal",
+          "default-features": false,
+          "features": [
+            "qt"
+          ]
         },
-        "qtdeclarative",
         "qtsvg"
       ]
+    },
+    "tbb": {
+      "description": "Intel TBB support for parallel algorithms",
+      "dependencies": [
+        "tbb"
+      ]
     }
   }
 }

scripts/ci.feature.baseline.txt

@@ -172,6 +172,7 @@ ceres[cuda]:arm64-linux=cascade
 ceres[lapack]:arm64-linux=cascade
 ceres[suitesparse]:arm64-linux=cascade
 cgal[qt]:arm64-linux=cascade
+cgal[qt-svg]:arm64-linux=cascade
 cgns[core,fortran,hdf5,legacy,lfs,mpi,tests](osx | (linux&!arm64))=combination-fails # ["fortran","hdf5","mpi"]: Could NOT find MPI (missing: MPI_Fortran_FOUND) (found version "3.1")
 cgns[fortran]:arm64-linux=feature-fails
 cgns[fortran](windows | android)=feature-fails # No fortran compiler installed

versions/baseline.json

@@ -1690,7 +1690,7 @@
     },
     "cgal": {
       "baseline": "6.2",
-      "port-version": 0
+      "port-version": 1
     },
     "cgicc": {
       "baseline": "3.2.20",

versions/c-/cgal.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "b462c716943d128187e489730bcb2a7292b76953",
+      "version": "6.2",
+      "port-version": 1
+    },
     {
       "git-tree": "ee44afa940e03a2edfb5bf1576952aff668a2e2a",
       "version": "6.2",