Merge remote-tracking branch 'cgal/6.1.x-branch' into 'cgal/main'

2025-11-06 10:07:15 +01:00 · 2025-11-06 10:07:15 +01:00 · 3b0d95e0e5
parent c63a3d721e ffda347171
commit 3b0d95e0e5
91 changed files with 219 additions and 146 deletions
--- a/Barycentric_coordinates_2/benchmark/Barycentric_coordinates_2/CMakeLists.txt
+++ b/Barycentric_coordinates_2/benchmark/Barycentric_coordinates_2/CMakeLists.txt
@ -1,9 +1,7 @@
 # Created by the script cgal_create_cmake_script.
 # This is the CMake script for compiling a CGAL application.
-
-project(Barycentric_coordinates_2_Benchmarks)
-
 cmake_minimum_required(VERSION 3.12...3.31)
+project(Barycentric_coordinates_2_Benchmarks)

 find_package(CGAL REQUIRED COMPONENTS Core)

@ -14,8 +12,9 @@ create_single_source_cgal_program("benchmark_polygon_16_vertices.cpp")
 create_single_source_cgal_program("benchmark_polygon_100_vertices.cpp")
 create_single_source_cgal_program("benchmark_mv_34_vertices.cpp")

-find_package(Eigen3 3.1.0 QUIET) # (3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("benchmark_hm_4_vertices.cpp")
  target_link_libraries(benchmark_hm_4_vertices PRIVATE CGAL::Eigen3_support)
--- a/Barycentric_coordinates_2/examples/Barycentric_coordinates_2/CMakeLists.txt
+++ b/Barycentric_coordinates_2/examples/Barycentric_coordinates_2/CMakeLists.txt
@ -17,8 +17,9 @@ create_single_source_cgal_program("terrain_height_modeling.cpp")
 # this code is deprecated:
 create_single_source_cgal_program("deprecated_coordinates.cpp")

-find_package(Eigen3 3.1.0 QUIET) # (3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("affine_coordinates.cpp")
  target_link_libraries(affine_coordinates PRIVATE CGAL::Eigen3_support)
--- a/Barycentric_coordinates_2/test/Barycentric_coordinates_2/CMakeLists.txt
+++ b/Barycentric_coordinates_2/test/Barycentric_coordinates_2/CMakeLists.txt
@ -42,8 +42,9 @@ create_single_source_cgal_program("test_wp_deprecated_api.cpp")
 create_single_source_cgal_program("test_mv_deprecated_api.cpp")
 create_single_source_cgal_program("test_dh_deprecated_api.cpp")

-find_package(Eigen3 3.1.0 QUIET) # (3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("test_hm_unit_square.cpp")
  target_link_libraries(test_hm_unit_square PRIVATE CGAL::Eigen3_support)
--- a/Basic_viewer/examples/Basic_viewer/CMakeLists.txt
+++ b/Basic_viewer/examples/Basic_viewer/CMakeLists.txt
@ -11,7 +11,7 @@ project(Basic_viewer_Examples)

 #CGAL_Qt6 is needed for the drawing.
 find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt6)
-find_package(Eigen3 3.1.0)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 create_single_source_cgal_program("draw_lcc.cpp")
--- a/Bounding_volumes/examples/Approximate_min_ellipsoid_d/CMakeLists.txt
+++ b/Bounding_volumes/examples/Approximate_min_ellipsoid_d/CMakeLists.txt
@ -4,7 +4,7 @@ project(Approximate_min_ellipsoid_d_Examples)
 find_package(CGAL REQUIRED)

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 # create a target per cppfile
--- a/Bounding_volumes/test/Bounding_volumes/CMakeLists.txt
+++ b/Bounding_volumes/test/Bounding_volumes/CMakeLists.txt
@ -7,7 +7,7 @@ project(Bounding_volumes_Tests)
 find_package(CGAL REQUIRED COMPONENTS Core)

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 # create a target per cppfile
--- a/CGAL_ipelets/demo/CGAL_ipelets/CMakeLists.txt
+++ b/CGAL_ipelets/demo/CGAL_ipelets/CMakeLists.txt
@ -20,8 +20,9 @@ set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_RUNTIME_OUTPUT_DIRECTORY}")

 find_package(CGAL REQUIRED COMPONENTS Core)

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires the Eigen library, and will not be compiled.")
  return()
--- a/Classification/examples/Classification/CMakeLists.txt
+++ b/Classification/examples/Classification/CMakeLists.txt
@ -23,8 +23,9 @@ if(NOT TARGET CGAL::Boost_iostreams_support)
  set(Classification_dependencies_met FALSE)
 endif()

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires the Eigen library, and will not be compiled.")
  set(Classification_dependencies_met FALSE)
--- a/Classification/test/Classification/CMakeLists.txt
+++ b/Classification/test/Classification/CMakeLists.txt
@ -23,8 +23,9 @@ if(NOT TARGET CGAL::Boost_iostreams_support)
  set(Classification_dependencies_met FALSE)
 endif()

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires the Eigen library, and will not be compiled.")
  set(Classification_dependencies_met FALSE)
--- a/Frechet_distance/examples/Frechet_distance/CMakeLists.txt
+++ b/Frechet_distance/examples/Frechet_distance/CMakeLists.txt
@ -7,7 +7,7 @@ project( Frechet_distance_Examples )
 find_package(CGAL REQUIRED QUIET OPTIONAL_COMPONENTS Core )


-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 create_single_source_cgal_program( "Frechet_distance_2.cpp" )
--- a/Frechet_distance/test/Frechet_distance/CMakeLists.txt
+++ b/Frechet_distance/test/Frechet_distance/CMakeLists.txt
@ -6,11 +6,12 @@ project( Frechet_distance_Tests )

 find_package(CGAL REQUIRED)

+find_package(Eigen3 QUIET)
+
+include(CGAL_Eigen3_support)

 create_single_source_cgal_program( "Frechet-IssueOct25.cpp" )

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
-include(CGAL_Eigen3_support)
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program( "Frechet_distance_test.cpp" )
  target_link_libraries(Frechet_distance_test PRIVATE CGAL::Eigen3_support)
--- a/Frechet_distance/test/Frechet_distance/data/scripts/CMakeLists.txt
+++ b/Frechet_distance/test/Frechet_distance/data/scripts/CMakeLists.txt
@ -6,8 +6,7 @@ project( classical_Frechet_distance )

 find_package(CGAL REQUIRED)

-
-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 create_single_source_cgal_program("Compute_classical_Frechet_distance_3.cpp")
--- a/Generator/examples/Generator/CMakeLists.txt
+++ b/Generator/examples/Generator/CMakeLists.txt
@ -28,8 +28,9 @@ create_single_source_cgal_program("random_segments1.cpp")
 create_single_source_cgal_program("random_segments2.cpp")
 create_single_source_cgal_program("sphere_d.cpp")

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("random_points_in_tetrahedral_mesh_3.cpp")
  target_link_libraries(random_points_in_tetrahedral_mesh_3 PRIVATE CGAL::Eigen3_support)
--- a/Generator/test/Generator/CMakeLists.txt
+++ b/Generator/test/Generator/CMakeLists.txt
@ -15,8 +15,9 @@ create_single_source_cgal_program("test_tetrahedron_3.cpp")
 create_single_source_cgal_program("test_triangle_2.cpp")
 create_single_source_cgal_program("test_triangle_3.cpp")

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("generic_random_test.cpp")
  target_link_libraries(generic_random_test PRIVATE CGAL::Eigen3_support)
--- a/GraphicsView/demo/Bounding_volumes/CMakeLists.txt
+++ b/GraphicsView/demo/Bounding_volumes/CMakeLists.txt
@ -8,7 +8,7 @@ find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt6)

 find_package(Qt6 QUIET COMPONENTS Widgets)

-find_package(Eigen3 3.1.91 QUIET) #(requires 3.1.91 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 if(NOT TARGET CGAL::Eigen3_support)
--- a/GraphicsView/demo/Polygon/CMakeLists.txt
+++ b/GraphicsView/demo/Polygon/CMakeLists.txt
@ -6,8 +6,9 @@ project(Polygon_Demo)

 find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt6 Core)

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This demo requires the Eigen library, and will not be compiled.")
  return()
--- a/Heat_method_3/examples/Heat_method_3/CMakeLists.txt
+++ b/Heat_method_3/examples/Heat_method_3/CMakeLists.txt
@ -7,8 +7,9 @@ project(Heat_method_3_Examples)
 # CGAL and its components
 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.3.0 QUIET)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: These examples require the Eigen library (3.3 or greater), and will not be compiled.")
  return()
--- a/Heat_method_3/test/Heat_method_3/CMakeLists.txt
+++ b/Heat_method_3/test/Heat_method_3/CMakeLists.txt
@ -7,8 +7,9 @@ project(Heat_method_3_Tests)
 # CGAL and its components
 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.3.0 QUIET)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: These tests require the  Eigen library (3.3 or greater), and will not be compiled.")
  return()
--- a/Installation/cmake/modules/CGAL_Eigen3_support.cmake
+++ b/Installation/cmake/modules/CGAL_Eigen3_support.cmake
@ -1,3 +1,10 @@
+if((EIGEN3_FOUND OR Eigen3_FOUND) AND NOT TARGET CGAL::Eigen3_support)
+  if ("${Eigen3_VERSION}" VERSION_LESS "3.3.7")
+    set (EIGEN3_FOUND 0)
+    find_package(Eigen3 3.3.7 QUIET) # (3.3.7 or greater)
+  endif()
+endif()
+
 if((EIGEN3_FOUND OR Eigen3_FOUND) AND NOT TARGET CGAL::Eigen3_support)
  if(NOT TARGET Threads::Threads)
    find_package(Threads REQUIRED)
--- a/Isosurfacing_3/benchmark/Isosurfacing_3/CMakeLists.txt
+++ b/Isosurfacing_3/benchmark/Isosurfacing_3/CMakeLists.txt
@ -6,7 +6,7 @@ project( Isosurfacing_3_benchmark )

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 find_package(TBB)
--- a/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt
+++ b/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt
@ -6,7 +6,7 @@ project( Isosurfacing_3_Examples )

 find_package(CGAL REQUIRED COMPONENTS ImageIO)

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 find_package(TBB QUIET)
--- a/Isosurfacing_3/test/Isosurfacing_3/CMakeLists.txt
+++ b/Isosurfacing_3/test/Isosurfacing_3/CMakeLists.txt
@ -4,7 +4,7 @@ project(Isosurfacing_3_Tests)

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 find_package(TBB QUIET)
--- a/Jet_fitting_3/examples/Jet_fitting_3/CMakeLists.txt
+++ b/Jet_fitting_3/examples/Jet_fitting_3/CMakeLists.txt
@ -7,8 +7,9 @@ project(Jet_fitting_3_Examples)
 find_package(CGAL REQUIRED)

 # use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)

  # Link with Boost.ProgramOptions (optional)
--- a/Jet_fitting_3/test/Jet_fitting_3/CMakeLists.txt
+++ b/Jet_fitting_3/test/Jet_fitting_3/CMakeLists.txt
@ -7,8 +7,9 @@ project(Jet_fitting_3_Tests)
 find_package(CGAL REQUIRED)

 # use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("blind_1pt.cpp")
  target_link_libraries(blind_1pt PRIVATE CGAL::Eigen3_support)
--- a/Kinetic_space_partition/examples/Kinetic_space_partition/CMakeLists.txt
+++ b/Kinetic_space_partition/examples/Kinetic_space_partition/CMakeLists.txt
@ -8,7 +8,7 @@ project(Kinetic_space_partition_Examples)
 find_package(CGAL REQUIRED)
 include(CGAL_CreateSingleSourceCGALProgram)

-find_package(Eigen3 3.1.0 REQUIRED)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 if(TARGET CGAL::Eigen3_support)
--- a/Kinetic_space_partition/test/Kinetic_space_partition/CMakeLists.txt
+++ b/Kinetic_space_partition/test/Kinetic_space_partition/CMakeLists.txt
@ -8,7 +8,7 @@ project(Kinetic_space_partition_Tests)
 find_package(CGAL REQUIRED)
 include(CGAL_CreateSingleSourceCGALProgram)

-find_package(Eigen3 3.1.0 REQUIRED)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 set(targets kinetic_3d_test_all issue_8624)
--- a/Kinetic_surface_reconstruction/examples/Kinetic_surface_reconstruction/CMakeLists.txt
+++ b/Kinetic_surface_reconstruction/examples/Kinetic_surface_reconstruction/CMakeLists.txt
@ -8,7 +8,7 @@ project(Kinetic_surface_reconstruction_Examples)
 find_package(CGAL REQUIRED)
 include(CGAL_CreateSingleSourceCGALProgram)

-find_package(Eigen3 3.1.0 REQUIRED)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 if(TARGET CGAL::Eigen3_support)
--- a/Kinetic_surface_reconstruction/test/Kinetic_surface_reconstruction/CMakeLists.txt
+++ b/Kinetic_surface_reconstruction/test/Kinetic_surface_reconstruction/CMakeLists.txt
@ -8,7 +8,7 @@ project(Kinetic_surface_reconstruction_Tests)
 find_package(CGAL REQUIRED)
 include(CGAL_CreateSingleSourceCGALProgram)

-find_package(Eigen3 3.1.0 REQUIRED)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 if(TARGET CGAL::Eigen3_support)
--- a/Lab/demo/Lab/CMakeLists.txt
+++ b/Lab/demo/Lab/CMakeLists.txt
@ -51,12 +51,14 @@ if(Qt6_FOUND)
  add_compile_definitions(QT_NO_KEYWORDS)
 endif(Qt6_FOUND)

-find_package(Eigen3 3.2.0 QUIET) #(requires 3.2.0 or greater)
+find_package(Eigen3 QUIET)
+include(CGAL_Eigen3_support)
+
 set_package_properties(
  Eigen3 PROPERTIES
  DESCRIPTION "A library for linear algebra."
  PURPOSE "Required for most plugins (Meshing, Mesh and Point Set Processing, etc.).")
-include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message(STATUS "NOTICE: Eigen was not found.")
 endif()
--- a/Lab/demo/Lab/Plugins/Mesh_3/CMakeLists.txt
+++ b/Lab/demo/Lab/Plugins/Mesh_3/CMakeLists.txt
@ -78,8 +78,9 @@ target_link_libraries(
 CGAL_Lab_target_use_c3t3_type(mesh_3_optimization_plugin)

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  target_link_libraries(mesh_3_optimization_plugin PRIVATE CGAL::Eigen3_support)
 else()
--- a/Lab/demo/Lab/Plugins/PMP/CMakeLists.txt
+++ b/Lab/demo/Lab/Plugins/PMP/CMakeLists.txt
@ -28,7 +28,6 @@ target_link_libraries(extrude_plugin PRIVATE scene_surface_mesh_item
                                             scene_selection_item)

 if(TARGET CGAL::Eigen3_support)
-  if("${Eigen3_VERSION}" VERSION_GREATER "3.1.90")
  qt6_wrap_ui( acvd_remeshingUI_FILES ACVD_remeshing_dialog.ui)
  cgal_lab_plugin(acvd_remeshing_plugin ACVD_remeshing_plugin ${acvd_remeshingUI_FILES} KEYWORDS PMP)
  target_link_libraries(acvd_remeshing_plugin PUBLIC scene_surface_mesh_item scene_points_with_normal_item scene_polygon_soup_item CGAL::Eigen3_support)
@ -84,9 +83,6 @@ if(TARGET CGAL::Eigen3_support)
 else()
  message(STATUS "NOTICE: The hole filling and fairing plugins require Eigen 3.2 (or higher) and will not be available.")
 endif()
-else()
-  message(STATUS "NOTICE: The hole filling and fairing plugins require Eigen 3.2 (or higher) and will not be available.")
-endif()

 qt6_wrap_ui(soupUI_FILES Repair_soup.ui)
 cgal_lab_plugin(orient_soup_plugin Orient_soup_plugin ${soupUI_FILES}
--- a/Lab/demo/Lab/Plugins/Surface_mesh_deformation/CMakeLists.txt
+++ b/Lab/demo/Lab/Plugins/Surface_mesh_deformation/CMakeLists.txt
@ -1,6 +1,6 @@
 include(CGALlab_macros)

-if(TARGET CGAL::Eigen3_support AND "${Eigen3_VERSION}" VERSION_GREATER "3.1.90")
+if(TARGET CGAL::Eigen3_support)

  qt6_wrap_ui(editionUI_FILES Deform_mesh.ui)
  add_item(scene_edit_item
--- a/Lab/demo/Lab/Plugins/Tetrahedral_remeshing/CMakeLists.txt
+++ b/Lab/demo/Lab/Plugins/Tetrahedral_remeshing/CMakeLists.txt
@ -14,7 +14,7 @@ cgal_lab_plugin(
 target_link_libraries(tetrahedral_remeshing_plugin PRIVATE scene_c3t3_item
                                                           ${OPENGL_gl_LIBRARY})
 CGAL_Lab_target_use_c3t3_type(tetrahedral_remeshing_plugin)
-find_package(Eigen3 3.1.0 REQUIRED) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
 if(TARGET CGAL::Eigen3_support)
  target_link_libraries(tetrahedral_remeshing_plugin PRIVATE CGAL::Eigen3_support)
--- a/Mesh_3/examples/Mesh_3/CMakeLists.txt
+++ b/Mesh_3/examples/Mesh_3/CMakeLists.txt
@ -19,8 +19,9 @@ if(CGAL_ACTIVATE_CONCURRENT_MESH_3 OR "$ENV{CGAL_ACTIVATE_CONCURRENT_MESH_3}")
 endif()

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: All examples require the Eigen3 library, and will not be compiled.")
  return()
--- a/Mesh_3/test/Mesh_3/CMakeLists.txt
+++ b/Mesh_3/test/Mesh_3/CMakeLists.txt
@ -7,8 +7,9 @@ project( Mesh_3_Tests )
 find_package(CGAL REQUIRED COMPONENTS ImageIO)

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if (NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires the Eigen library, and will not be compiled.")
  return()
--- a/NewKernel_d/test/NewKernel_d/CMakeLists.txt
+++ b/NewKernel_d/test/NewKernel_d/CMakeLists.txt
@ -14,6 +14,7 @@ find_package(CGAL REQUIRED)

 find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  file(
    GLOB cppfiles
--- a/Number_types/test/Number_types/CMakeLists.txt
+++ b/Number_types/test/Number_types/CMakeLists.txt
@ -80,8 +80,10 @@ if(NOT CGAL_DISABLE_GMP)
  create_single_source_cgal_program( "Gmpfi.cpp" )
  create_single_source_cgal_program( "Gmpfr_bug.cpp" )
  create_single_source_cgal_program( "test_eigen.cpp" )
-  find_package(Eigen3 3.2.0 QUIET) #(requires 3.2.0 or greater)
+
+  find_package(Eigen3 QUIET)
  include(CGAL_Eigen3_support)
+
  if (TARGET CGAL::Eigen3_support)
    target_link_libraries(test_eigen PRIVATE CGAL::Eigen3_support)
  endif()
--- a/Optimal_bounding_box/benchmark/Optimal_bounding_box/CMakeLists.txt
+++ b/Optimal_bounding_box/benchmark/Optimal_bounding_box/CMakeLists.txt
@ -7,8 +7,9 @@ project(Optimal_bounding_box_Benchmark)
 # CGAL and its components
 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires the Eigen library, and will not be compiled.")
  return()
--- a/Optimal_bounding_box/examples/Optimal_bounding_box/CMakeLists.txt
+++ b/Optimal_bounding_box/examples/Optimal_bounding_box/CMakeLists.txt
@ -6,8 +6,9 @@ project(Optimal_bounding_box_Examples)

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires the Eigen library, and will not be compiled.")
  return()
--- a/Optimal_bounding_box/test/Optimal_bounding_box/CMakeLists.txt
+++ b/Optimal_bounding_box/test/Optimal_bounding_box/CMakeLists.txt
@ -6,8 +6,9 @@ project(Optimal_bounding_box_Tests)

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires the Eigen library, and will not be compiled.")
  return()
--- a/Orthtree/examples/Orthtree/CMakeLists.txt
+++ b/Orthtree/examples/Orthtree/CMakeLists.txt
@ -18,8 +18,9 @@ create_single_source_cgal_program("quadtree_build_from_point_vector.cpp")
 create_single_source_cgal_program("octree_surface_mesh.cpp")
 create_single_source_cgal_program("quadtree_build_manually.cpp")

-find_package(Eigen3 3.1.91 QUIET) #(requires 3.1.91 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if (TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("orthtree_build.cpp")
  target_link_libraries(orthtree_build PRIVATE CGAL::Eigen3_support)
--- a/Periodic_3_mesh_3/examples/Periodic_3_mesh_3/CMakeLists.txt
+++ b/Periodic_3_mesh_3/examples/Periodic_3_mesh_3/CMakeLists.txt
@ -8,8 +8,9 @@ project(Periodic_3_mesh_3_Examples)
 find_package(CGAL REQUIRED)

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires the Eigen library, and will not be compiled.")
  return()
--- a/Periodic_3_mesh_3/test/Periodic_3_mesh_3/CMakeLists.txt
+++ b/Periodic_3_mesh_3/test/Periodic_3_mesh_3/CMakeLists.txt
@ -7,8 +7,9 @@ project(Periodic_3_mesh_3_Tests)
 find_package(CGAL REQUIRED COMPONENTS ImageIO)

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires the Eigen library, and will not be compiled.")
  return()
--- a/Point_set_3/examples/Point_set_3/CMakeLists.txt
+++ b/Point_set_3/examples/Point_set_3/CMakeLists.txt
@ -13,8 +13,9 @@ create_single_source_cgal_program("point_set_read_xyz.cpp")
 create_single_source_cgal_program("point_set_advanced.cpp")
 create_single_source_cgal_program("point_set_read_ply.cpp")

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("point_set_algo.cpp")
  target_link_libraries(point_set_algo PRIVATE CGAL::Eigen3_support)
--- a/Point_set_processing_3/examples/Point_set_processing_3/CMakeLists.txt
+++ b/Point_set_processing_3/examples/Point_set_processing_3/CMakeLists.txt
@ -70,8 +70,9 @@ else()
 endif()

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)

  # Executables that require Eigen
--- a/Point_set_processing_3/test/Point_set_processing_3/CMakeLists.txt
+++ b/Point_set_processing_3/test/Point_set_processing_3/CMakeLists.txt
@ -46,8 +46,9 @@ else()
 endif()

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  # Executables that require Eigen
  create_single_source_cgal_program( "normal_estimation_test.cpp" )
--- a/Poisson_surface_reconstruction_3/examples/Poisson_surface_reconstruction_3/CMakeLists.txt
+++ b/Poisson_surface_reconstruction_3/examples/Poisson_surface_reconstruction_3/CMakeLists.txt
@ -21,9 +21,10 @@ endif()
 # Activate Parallelism in Mesh_3
 option(CGAL_ACTIVATE_CONCURRENT_MESH_3 "Activate parallelism in Mesh_3" OFF)

-# Find Eigen3 (requires 3.1.0 or greater)
-find_package(Eigen3 3.1.0 QUIET)
+# Find Eigen3
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  # Executables that require Eigen 3
  create_single_source_cgal_program("poisson_reconstruction_example.cpp")
--- a/Poisson_surface_reconstruction_3/test/Poisson_surface_reconstruction_3/CMakeLists.txt
+++ b/Poisson_surface_reconstruction_3/test/Poisson_surface_reconstruction_3/CMakeLists.txt
@ -20,10 +20,10 @@ if(MSVC)
  message(STATUS "USING RELEASE EXEFLAGS = '${CMAKE_EXE_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS_RELEASE}'")
 endif()

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
-  # Executables that require Eigen 3.1
  if(TARGET CGAL::TBB_support)
    create_single_source_cgal_program("poisson_reconstruction_test_surface_mesher.cpp")
    target_link_libraries(poisson_reconstruction_test_surface_mesher PRIVATE CGAL::Eigen3_support CGAL::TBB_support)
--- a/Polygon_mesh_processing/benchmark/Polygon_mesh_processing/CMakeLists.txt
+++ b/Polygon_mesh_processing/benchmark/Polygon_mesh_processing/CMakeLists.txt
@ -7,8 +7,9 @@ project(Polygon_mesh_processing)
 # CGAL and its components
 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.2.0 QUIET) #(requires 3.2.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: Benchmarks require Eigen 3.2 (or greater), and will not be compiled")
  return()
--- a/Polygon_mesh_processing/examples/Polygon_mesh_processing/CMakeLists.txt
+++ b/Polygon_mesh_processing/examples/Polygon_mesh_processing/CMakeLists.txt
@ -60,8 +60,9 @@ create_single_source_cgal_program("triangle_mesh_autorefinement.cpp")
 create_single_source_cgal_program("soup_autorefinement.cpp")
 create_single_source_cgal_program("snap_polygon_soup.cpp")

-find_package(Eigen3 3.2.0 QUIET) #(requires 3.2.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("acvd_remeshing_example.cpp")
  target_link_libraries(acvd_remeshing_example PUBLIC CGAL::Eigen3_support)
--- a/Polygon_mesh_processing/test/Polygon_mesh_processing/CMakeLists.txt
+++ b/Polygon_mesh_processing/test/Polygon_mesh_processing/CMakeLists.txt
@ -76,8 +76,9 @@ create_single_source_cgal_program("issue_8730.cpp")
 create_single_source_cgal_program("issue_7164.cpp")
 #  create_single_source_cgal_program("test_pmp_repair_self_intersections.cpp")

-find_package(Eigen3 3.2.0 QUIET) #(requires 3.2.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("fairing_test.cpp")
  target_link_libraries(fairing_test PRIVATE CGAL::Eigen3_support)
--- a/Polygonal_surface_reconstruction/examples/Polygonal_surface_reconstruction/CMakeLists.txt
+++ b/Polygonal_surface_reconstruction/examples/Polygonal_surface_reconstruction/CMakeLists.txt
@ -8,8 +8,9 @@ project(Polygonal_surface_reconstruction_Examples)
 # CGAL and its components
 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires Eigen 3.1 (or greater), and will not be compiled.")
  return()
--- a/Polygonal_surface_reconstruction/test/Polygonal_surface_reconstruction/CMakeLists.txt
+++ b/Polygonal_surface_reconstruction/test/Polygonal_surface_reconstruction/CMakeLists.txt
@ -8,8 +8,9 @@ project(Polygonal_surface_reconstruction_Tests)
 # CGAL and its components
 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires Eigen 3.1 (or greater), and will not be compiled.")
  return()
--- a/Principal_component_analysis/demo/Principal_component_analysis/CMakeLists.txt
+++ b/Principal_component_analysis/demo/Principal_component_analysis/CMakeLists.txt
@ -8,8 +8,9 @@ include_directories(./)
 # Find CGAL and CGAL Qt6
 find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt6)

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires the Eigen library, and will not be compiled.")
  return()
--- a/Principal_component_analysis/examples/Principal_component_analysis/CMakeLists.txt
+++ b/Principal_component_analysis/examples/Principal_component_analysis/CMakeLists.txt
@ -7,8 +7,9 @@ project(Principal_component_analysis_Examples)
 find_package(CGAL REQUIRED)

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires Eigen 3.1 (or greater), and will not be compiled.")
  return()
--- a/Principal_component_analysis/test/Principal_component_analysis/CMakeLists.txt
+++ b/Principal_component_analysis/test/Principal_component_analysis/CMakeLists.txt
@ -7,8 +7,9 @@ project(Principal_component_analysis_Tests)
 find_package(CGAL REQUIRED)

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires Eigen 3.1 (or greater), and will not be compiled.")
  return()
--- a/Property_map/examples/Property_map/CMakeLists.txt
+++ b/Property_map/examples/Property_map/CMakeLists.txt
@ -6,8 +6,9 @@ find_package(CGAL REQUIRED)

 create_single_source_cgal_program("dynamic_properties.cpp")

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("custom_property_map.cpp")
  target_link_libraries(custom_property_map PRIVATE CGAL::Eigen3_support)
--- a/Ridges_3/examples/Ridges_3/CMakeLists.txt
+++ b/Ridges_3/examples/Ridges_3/CMakeLists.txt
@ -4,8 +4,9 @@ project(Ridges_3_Examples)

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)

  # Link with Boost.ProgramOptions (optional)
--- a/Ridges_3/test/Ridges_3/CMakeLists.txt
+++ b/Ridges_3/test/Ridges_3/CMakeLists.txt
@ -6,8 +6,9 @@ project(Ridges_3_Tests)

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("ridge_test.cpp")
  target_link_libraries(ridge_test PRIVATE CGAL::Eigen3_support)
--- a/SMDS_3/test/SMDS_3/CMakeLists.txt
+++ b/SMDS_3/test/SMDS_3/CMakeLists.txt
@ -9,8 +9,9 @@ find_package(CGAL REQUIRED)
 create_single_source_cgal_program( "test_simplicial_cb_vb.cpp")
 create_single_source_cgal_program( "test_tet_soup_to_c3t3.cpp")

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program( "test_c3t3.cpp" )
  create_single_source_cgal_program( "test_c3t3_io.cpp" )
--- a/Scale_space_reconstruction_3/examples/Scale_space_reconstruction_3/CMakeLists.txt
+++ b/Scale_space_reconstruction_3/examples/Scale_space_reconstruction_3/CMakeLists.txt
@ -14,8 +14,9 @@ if(ACTIVATE_CONCURRENCY)
  endif()
 endif()

-find_package(Eigen3 3.1.0 QUIET)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("scale_space.cpp")
  target_link_libraries(scale_space PRIVATE CGAL::Eigen3_support)
--- a/Shape_detection/benchmark/Shape_detection/CMakeLists.txt
+++ b/Shape_detection/benchmark/Shape_detection/CMakeLists.txt
@ -6,8 +6,9 @@ project(Shape_detection_Benchmarks)

 find_package(CGAL REQUIRED COMPONENTS Core)

-find_package(Eigen3 3.1.0 QUIET) # (3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("benchmark_region_growing_on_point_set_2.cpp")
  target_link_libraries(benchmark_region_growing_on_point_set_2 PRIVATE CGAL::Eigen3_support)
--- a/Shape_detection/examples/Shape_detection/CMakeLists.txt
+++ b/Shape_detection/examples/Shape_detection/CMakeLists.txt
@ -10,8 +10,9 @@ create_single_source_cgal_program("efficient_RANSAC_with_custom_shape.cpp")
 create_single_source_cgal_program("efficient_RANSAC_with_parameters.cpp")
 create_single_source_cgal_program("efficient_RANSAC_with_point_access.cpp")

-find_package(Eigen3 3.1.0 QUIET) # (3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  message(STATUS "Found Eigen 3")

--- a/Shape_detection/test/Shape_detection/CMakeLists.txt
+++ b/Shape_detection/test/Shape_detection/CMakeLists.txt
@ -18,10 +18,10 @@ create_single_source_cgal_program("test_efficient_RANSAC_torus_connected_compone
 create_single_source_cgal_program("test_efficient_RANSAC_torus_parameters.cpp")
 create_single_source_cgal_program("test_efficient_RANSAC_scene.cpp")

-find_package(Eigen3 3.1.0 QUIET) # (3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
-if(TARGET CGAL::Eigen3_support)

+if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("test_region_growing_basic.cpp")
  create_single_source_cgal_program("test_region_growing_strict.cpp")
  create_single_source_cgal_program("test_region_growing_on_cube.cpp")
--- a/Shape_regularization/examples/Shape_regularization/CMakeLists.txt
+++ b/Shape_regularization/examples/Shape_regularization/CMakeLists.txt
@ -27,8 +27,9 @@ if(TARGET CGAL::OSQP_support)
  endforeach()

  # Use Eigen.
-  find_package(Eigen3 3.1.0 QUIET) # (3.1.0 or greater)
+  find_package(Eigen3 QUIET)
  include(CGAL_Eigen3_support)
+
  if(TARGET CGAL::Eigen3_support)
    message(STATUS "Found Eigen")

--- a/Solver_interface/examples/Solver_interface/CMakeLists.txt
+++ b/Solver_interface/examples/Solver_interface/CMakeLists.txt
@ -7,8 +7,9 @@ project(Solver_interface_Examples)
 find_package(CGAL REQUIRED)

 # Use Eigen
-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("singular_value_decomposition.cpp")
  target_link_libraries(singular_value_decomposition PRIVATE CGAL::Eigen3_support)
--- a/Spatial_searching/benchmark/Spatial_searching/CMakeLists.txt
+++ b/Spatial_searching/benchmark/Spatial_searching/CMakeLists.txt
@ -8,8 +8,9 @@ find_package(CGAL REQUIRED COMPONENTS Core)

 include_directories(BEFORE "include")

-find_package(Eigen3 3.1.91 QUIET) # (requires 3.1.91 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: These benchmarks require Eigen 3.1.91 (or greater), and will not be compiled.")
  return()
--- a/Spatial_searching/examples/Spatial_searching/CMakeLists.txt
+++ b/Spatial_searching/examples/Spatial_searching/CMakeLists.txt
@ -26,8 +26,9 @@ create_single_source_cgal_program("weighted_Minkowski_distance.cpp")
 create_single_source_cgal_program("searching_sphere_orthogonally.cpp")
 create_single_source_cgal_program("splitter_worst_cases.cpp")

-find_package(Eigen3 3.1.91 QUIET) #(requires 3.1.91 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("fuzzy_range_query.cpp")
  target_link_libraries(fuzzy_range_query PRIVATE CGAL::Eigen3_support)
--- a/Surface_mesh_approximation/examples/Surface_mesh_approximation/CMakeLists.txt
+++ b/Surface_mesh_approximation/examples/Surface_mesh_approximation/CMakeLists.txt
@ -8,8 +8,9 @@ project(Surface_mesh_approximation_Examples)
 find_package(CGAL REQUIRED)

 # Use Eigen (for PCA)
-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires Eigen 3.1 (or greater), and will not be compiled.")
  return()
--- a/Surface_mesh_approximation/test/Surface_mesh_approximation/CMakeLists.txt
+++ b/Surface_mesh_approximation/test/Surface_mesh_approximation/CMakeLists.txt
@ -8,8 +8,9 @@ project(Surface_mesh_approximation_Tests)
 find_package(CGAL REQUIRED)

 # Use Eigen (for PCA)
-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: This project requires Eigen 3.1 (or greater), and will not be compiled.")
  return()
--- a/Surface_mesh_deformation/benchmark/Surface_mesh_deformation/optimal_rotation/CMakeLists.txt
+++ b/Surface_mesh_deformation/benchmark/Surface_mesh_deformation/optimal_rotation/CMakeLists.txt
@ -3,8 +3,9 @@ project(benchmark_for_closest_rotation)

 find_package(CGAL REQUIRED COMPONENTS Core)

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("benchmark_for_concept_models.cpp")
  target_link_libraries(benchmark_for_concept_models PRIVATE CGAL::Eigen3_support)
--- a/Surface_mesh_deformation/demo/Surface_mesh_deformation/CMakeLists.txt
+++ b/Surface_mesh_deformation/demo/Surface_mesh_deformation/CMakeLists.txt
@ -8,8 +8,9 @@ set_property(DIRECTORY PROPERTY CGAL_NO_TESTING TRUE)

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.91 QUIET) #(requires 3.1.91 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("deform_mesh_for_botsch08_format.cpp")
  target_link_libraries(deform_mesh_for_botsch08_format PRIVATE CGAL::Eigen3_support)
--- a/Surface_mesh_deformation/examples/Surface_mesh_deformation/CMakeLists.txt
+++ b/Surface_mesh_deformation/examples/Surface_mesh_deformation/CMakeLists.txt
@ -6,8 +6,9 @@ project(Surface_mesh_deformation_Examples)

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.91 QUIET) #(requires 3.1.91 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("all_roi_assign_example.cpp")
  create_single_source_cgal_program("all_roi_assign_example_custom_polyhedron.cpp")
--- a/Surface_mesh_deformation/test/Surface_mesh_deformation/CMakeLists.txt
+++ b/Surface_mesh_deformation/test/Surface_mesh_deformation/CMakeLists.txt
@ -6,8 +6,9 @@ project(Surface_mesh_deformation_Tests)

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.91 QUIET) #(requires 3.1.91 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("Cactus_deformation_session.cpp")
  target_link_libraries(Cactus_deformation_session PRIVATE CGAL::Eigen3_support)
--- a/Surface_mesh_parameterization/examples/Surface_mesh_parameterization/CMakeLists.txt
+++ b/Surface_mesh_parameterization/examples/Surface_mesh_parameterization/CMakeLists.txt
@ -5,8 +5,9 @@ project(Surface_mesh_parameterization_Examples)

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  # Executables that require Eigen 3.1

--- a/Surface_mesh_parameterization/test/Surface_mesh_parameterization/CMakeLists.txt
+++ b/Surface_mesh_parameterization/test/Surface_mesh_parameterization/CMakeLists.txt
@ -14,8 +14,9 @@ else()
  message(STATUS "NOTICE: Examples will be compiled without the SuiteSparse library and UmfPack. Try setting CMAKE_PREFIX_PATH to your SuiteSparse installation.")
 endif()

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("extensive_parameterization_test.cpp")
  target_link_libraries(extensive_parameterization_test PRIVATE CGAL::Eigen3_support)
--- a/Surface_mesh_simplification/examples/Surface_mesh_simplification/CMakeLists.txt
+++ b/Surface_mesh_simplification/examples/Surface_mesh_simplification/CMakeLists.txt
@ -19,8 +19,9 @@ create_single_source_cgal_program("edge_collapse_all_short_edges.cpp")
 create_single_source_cgal_program("edge_collapse_bounded_normal_change.cpp")
 create_single_source_cgal_program("edge_collapse_visitor_surface_mesh.cpp")

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("edge_collapse_garland_heckbert.cpp")
  target_link_libraries(edge_collapse_garland_heckbert PRIVATE CGAL::Eigen3_support)
--- a/Surface_mesh_simplification/test/Surface_mesh_simplification/CMakeLists.txt
+++ b/Surface_mesh_simplification/test/Surface_mesh_simplification/CMakeLists.txt
@ -15,8 +15,9 @@ create_single_source_cgal_program("test_edge_profile_link.cpp")
 create_single_source_cgal_program("test_edge_deprecated_stop_predicates.cpp")
 create_single_source_cgal_program("test_edge_collapse_stability.cpp")

-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("edge_collapse_garland_heckbert_variations.cpp")
  target_link_libraries(edge_collapse_garland_heckbert_variations PRIVATE CGAL::Eigen3_support)
--- a/Surface_mesh_skeletonization/benchmark/Surface_mesh_skeletonization/CMakeLists.txt
+++ b/Surface_mesh_skeletonization/benchmark/Surface_mesh_skeletonization/CMakeLists.txt
@ -7,8 +7,9 @@ project(Mean_curvature_skeleton)
 # CGAL and its components
 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.2.0 QUIET) #(requires 3.2.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("solver_benchmark.cpp")
  target_link_libraries(solver_benchmark PRIVATE CGAL::Eigen3_support)
--- a/Surface_mesh_skeletonization/examples/Surface_mesh_skeletonization/CMakeLists.txt
+++ b/Surface_mesh_skeletonization/examples/Surface_mesh_skeletonization/CMakeLists.txt
@ -6,8 +6,9 @@ project(Surface_mesh_skeletonization_Examples)

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.2.0 QUIET) #(requires 3.2.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("simple_mcfskel_example.cpp")
  create_single_source_cgal_program("simple_mcfskel_sm_example.cpp")
--- a/Surface_mesh_skeletonization/test/Surface_mesh_skeletonization/CMakeLists.txt
+++ b/Surface_mesh_skeletonization/test/Surface_mesh_skeletonization/CMakeLists.txt
@ -6,8 +6,9 @@ project(Surface_mesh_skeletonization_Tests)

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.2.0 QUIET) #(requires 3.2.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("MCF_Skeleton_test.cpp")
  target_link_libraries(MCF_Skeleton_test PRIVATE CGAL::Eigen3_support)
--- a/Tetrahedral_remeshing/examples/Tetrahedral_remeshing/CMakeLists.txt
+++ b/Tetrahedral_remeshing/examples/Tetrahedral_remeshing/CMakeLists.txt
@ -25,8 +25,9 @@ else()
 endif()

 # Use Eigen for Mesh_3
-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program( "mesh_and_remesh_polyhedral_domain_with_features.cpp" )
  target_link_libraries(mesh_and_remesh_polyhedral_domain_with_features PRIVATE CGAL::Eigen3_support)
--- a/Tetrahedral_remeshing/test/Tetrahedral_remeshing/CMakeLists.txt
+++ b/Tetrahedral_remeshing/test/Tetrahedral_remeshing/CMakeLists.txt
@ -28,8 +28,9 @@ cgal_add_test(test_tetrahedral_remeshing_mls)


 # Tests using Mesh_3 require Eigen
-find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("test_mesh_and_remesh_polyhedron_with_features.cpp")
  target_link_libraries(test_mesh_and_remesh_polyhedron_with_features PRIVATE CGAL::Eigen3_support)
--- a/Triangulation/applications/Triangulation/CMakeLists.txt
+++ b/Triangulation/applications/Triangulation/CMakeLists.txt
@ -7,8 +7,9 @@ project(Triangulation_apps)
 # CGAL and its components
 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(NOT TARGET CGAL::Eigen3_support)
  message("NOTICE: Applications require Eigen 3.1 (or greater), and will not be compiled")
  return()
--- a/Triangulation/benchmark/Triangulation/CMakeLists.txt
+++ b/Triangulation/benchmark/Triangulation/CMakeLists.txt
@ -6,8 +6,9 @@ project(Triangulation_benchmark)

 find_package(CGAL REQUIRED COMPONENTS Core)

-find_package(Eigen3 3.1.0 QUIET)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  include_directories(BEFORE "include")

--- a/Triangulation/examples/Triangulation/CMakeLists.txt
+++ b/Triangulation/examples/Triangulation/CMakeLists.txt
@ -11,8 +11,9 @@ endif()

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("barycentric_subdivision.cpp")
  create_single_source_cgal_program("delaunay_triangulation.cpp")
--- a/Triangulation/test/Triangulation/CMakeLists.txt
+++ b/Triangulation/test/Triangulation/CMakeLists.txt
@ -11,8 +11,9 @@ endif()

 find_package(CGAL REQUIRED)

-find_package(Eigen3 3.1.0 QUIET)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  include_directories(BEFORE "include")

--- a/Triangulation_on_sphere_2/demo/Triangulation_on_sphere_2/CMakeLists.txt
+++ b/Triangulation_on_sphere_2/demo/Triangulation_on_sphere_2/CMakeLists.txt
@ -18,7 +18,7 @@ find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt6)
 # Find Qt6 itself
 find_package(Qt6 QUIET COMPONENTS Widgets OpenGL)

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)

 if(CGAL_Qt6_FOUND AND Qt6_FOUND AND TARGET CGAL::Eigen3_support)
--- a/Triangulation_on_sphere_2/test/Triangulation_on_sphere_2/CMakeLists.txt
+++ b/Triangulation_on_sphere_2/test/Triangulation_on_sphere_2/CMakeLists.txt
@ -18,8 +18,9 @@ else()
  message("NOTICE: Some tests require CGAL_Core (or LEDA), and will not be compiled.")
 endif()

-find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program( "test_dtos_dual.cpp" )
  target_link_libraries(test_dtos_dual PRIVATE CGAL::Eigen3_support)
--- a/Voronoi_diagram_2/test/Voronoi_diagram_2/CMakeLists.txt
+++ b/Voronoi_diagram_2/test/Voronoi_diagram_2/CMakeLists.txt
@ -12,8 +12,9 @@ create_single_source_cgal_program("vda_pt.cpp")
 create_single_source_cgal_program("vda_rt.cpp")
 create_single_source_cgal_program("vda_sdg.cpp")

-find_package(Eigen3 3.2.0 QUIET) #(requires 3.2.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("vda_tos2.cpp")
  target_link_libraries(vda_tos2 PRIVATE CGAL::Eigen3_support)
--- a/Weights/examples/Weights/CMakeLists.txt
+++ b/Weights/examples/Weights/CMakeLists.txt
@ -11,8 +11,9 @@ create_single_source_cgal_program("projection_traits.cpp")
 create_single_source_cgal_program("custom_traits.cpp")
 create_single_source_cgal_program("convergence.cpp")

-find_package(Eigen3 3.1.0 QUIET) # (requires 3.1.0 or greater)
+find_package(Eigen3 QUIET)
 include(CGAL_Eigen3_support)
+
 if(TARGET CGAL::Eigen3_support)
  create_single_source_cgal_program("weighted_laplacian.cpp")
  target_link_libraries(weighted_laplacian PRIVATE CGAL::Eigen3_support)