Remove a few occurrences of CGAL_Qt5

... and replace by CGAL_Qt6

Arrangement_on_surface_2/doc/Arrangement_on_surface_2/Arrangement_on_surface_2.txt

@@ -6750,8 +6750,8 @@ An arrangement data structure can be visualized by calling the \link PkgArrangem
 
 \cgalExample{Arrangement_on_surface_2/draw_arr.cpp}
 
-This function requires `CGAL_Qt5`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.
-Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt5` and add the definition `CGAL_USE_BASIC_VIEWER`.
+This function requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.
+Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.
 
 \cgalFigureBegin{aos_fig-draw_arr,draw_arr.png}
 A snapshot of the window created by the program

Arrangement_on_surface_2/doc/Arrangement_on_surface_2/CGAL/draw_arrangement_2.h

@@ -28,9 +28,9 @@ namespace CGAL {
  * opens a new window and draws `arr`, an instance of the `CGAL::Arrangement_2`
  * class template. A call to this function is blocking; that is, the program
  * continues only after the user closes the window. This function requires
- * `CGAL_Qt5`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is
+ * `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is
  * defined.  Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link
- * with `CGAL_Qt5` and add the definition `CGAL_USE_BASIC_VIEWER`.
+ * with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.
  *
  * \tparam GeometryTraits_2 a geometry traits type, a model of a 2D arrangement
  * traits concept. At this point it must be an instance of either

Boolean_set_operations_2/doc/Boolean_set_operations_2/CGAL/draw_polygon_set_2.h

@@ -3,8 +3,8 @@ namespace CGAL {
 /*!
 \ingroup PkgDrawPolygonSet2
 
-opens a new window and draws `aps`, an instance of the `CGAL::Polygon_set_2` class. A call to this function is blocking, that is the program continues as soon as the user closes the window. This function requires `CGAL_Qt5`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.
-Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt5` and add the definition `CGAL_USE_BASIC_VIEWER`.
+opens a new window and draws `aps`, an instance of the `CGAL::Polygon_set_2` class. A call to this function is blocking, that is the program continues as soon as the user closes the window. This function requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.
+Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.
 \tparam PS an instance of the `CGAL::Polygon_set_2` class.
 \param aps the polygon set to draw.
 

Boolean_set_operations_2/include/CGAL/draw_polygon_set_2.h

@@ -27,9 +27,9 @@ namespace CGAL {
  *
  * opens a new window and draws `aps`, an instance of the `CGAL::Polygon_set_2`
  * class. A call to this function is blocking, that is the program continues as
- * soon as the user closes the window. This function requires `CGAL_Qt5`, and is
+ * soon as the user closes the window. This function requires `CGAL_Qt6`, and is
  * only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.  Linking with
- * the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt5` and add
+ * the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add
  * the definition `CGAL_USE_BASIC_VIEWER`.
  * \tparam PS an instance of the `CGAL::Polygon_set_2` class.
  * \param aps the polygon set to draw.

Documentation/doc/Documentation/Developer_manual/create_and_use_a_cmakelist.txt

@@ -33,14 +33,14 @@ This section describes a minimal example of a program that uses \cgal and Qt5 fo
 \skip cmake_minimum_required
 \until project
 
-\skip #CGAL_Qt5 is needed for the drawing.
+\skip #CGAL_Qt6 is needed for the drawing.
 \until endif()
 
 \skip #create the executable of the application
 \until "draw_surface_mesh.cpp"
 
-\skip if(CGAL_Qt5_FOUND)
-\until target_link_libraries(draw_surface_mesh PUBLIC CGAL::CGAL_Qt5)
+\skip if(CGAL_Qt6_FOUND)
+\until target_link_libraries(draw_surface_mesh PUBLIC CGAL::CGAL_Qt6)
 \skip endif
 \until #end of the file
 

Documentation/doc/Documentation/Third_party.txt

@@ -77,7 +77,7 @@ we recommend that you define the environment variable
 \subsection thirdpartyMPFR GNU Multiple Precision Arithmetic (GMP) and GNU Multiple Precision Floating-Point Reliably (MPFR) Libraries
 <b>GMP Version 4.2 or later, MPFR Version 2.2.1 or later</b>
 
-The components `libCGAL`, `libCGAL_Core`, and `libCGAL_Qt5` require
+The components `libCGAL`, `libCGAL_Core`, and `libCGAL_Qt6` require
 \gmp and \mpfr which are libraries for multi precision integers and rational numbers,
 and for multi precision floating point numbers.
 

Documentation/doc/scripts/test_doxygen_versions.sh

@@ -117,7 +117,7 @@ if [ "$HAS_REF" -ne "1" ]; then
   if [ $IS_RELEASE = 0 ]; then
     cd $ROOT
     mkdir -p ./build && cd ./build
-    cmake -DWITH_CGAL_Core=false -DWITH_CGAL_ImageIO=false -DWITH_CGAL_Qt5=false .. 1>> ./build_logs
+    cmake -DWITH_CGAL_Core=false -DWITH_CGAL_ImageIO=false -DWITH_CGAL_Qt6=false .. 1>> ./build_logs
     CGAL_NAME="$(cat $PWD/VERSION)"
     cd $ROOT
     rm -rf ./build

GraphicsView/include/CGAL/Qt/CGAL_Qt_config.h

@@ -14,8 +14,8 @@
 
 #include <QtCore/qglobal.h>
 
-#if defined(CGAL_Qt5_DLL)
-#  if defined(CGAL_Qt5_EXPORTS)
+#if defined(CGAL_Qt6_DLL)
+#  if defined(CGAL_Qt6_EXPORTS)
 #    define CGAL_QT_EXPORT Q_DECL_EXPORT
 #  else
 #    define CGAL_QT_EXPORT Q_DECL_IMPORT

GraphicsView/include/CGAL/auto_link/Qt.h

@@ -16,13 +16,13 @@
 #include <QtCore/qglobal.h>
 
 #if (! defined (CGAL_NO_AUTOLINK_QT))
-#if ( ! defined( CGAL_EXPORTS )  && (! defined ( CGAL_Qt5_EXPORTS )))
+#if ( ! defined( CGAL_EXPORTS )  && (! defined ( CGAL_Qt6_EXPORTS )))
 
 // If CGAL_EXPORTS is defined it means that we are building the CGAL
 // library as a DLL. The CGAL.dll does not really depend on CGAL_Qt,
 // whatever the header inclusion graph says.
 
-#define CGAL_LIB_NAME CGAL_Qt5
+#define CGAL_LIB_NAME CGAL_Qt6
 
 #include <CGAL/auto_link/auto_link.h>
 

GraphicsView/include/CGAL/export/Qt.h

@@ -18,7 +18,7 @@
 #if ( defined(CGAL_BUILD_SHARED_LIBS) && ( ! defined(CGAL_HEADER_ONLY) ) ) \
   || defined(CGAL_USE_Qt5_RESOURCES)
 
-#  if defined(CGAL_Qt5_EXPORTS) || defined(CGAL_USE_Qt5_RESOURCES)
+#  if defined(CGAL_Qt6_EXPORTS) || defined(CGAL_USE_Qt5_RESOURCES)
 // defined by CMake or in cpp files of the dll
 
 #    define CGAL_QT_EXPORT CGAL_DLL_EXPORT

Installation/cmake/modules/CGAL_enable_end_of_configuration_hook.cmake

@@ -24,7 +24,7 @@ function(CGAL_hook_check_targets)
   endif()
   get_property(_targets DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY BUILDSYSTEM_TARGETS)
   set(_list_of_deps)
-  set(_special_targets  demos examples tests ALL_CGAL_TARGETS CGAL_Qt5_moc_and_resources uninstall install_FindCGAL)
+  set(_special_targets  demos examples tests ALL_CGAL_TARGETS CGAL_Qt6_moc_and_resources uninstall install_FindCGAL)
   foreach(t ${_special_targets})
     if(NOT TARGET ${t})
       continue()
@@ -110,8 +110,8 @@ function(CGAL_hook_fix_ctest_depending_on_Qt5)
       continue()
     endif()
     get_property(_target_links TARGET ${_target} PROPERTY LINK_LIBRARIES)
-    if("CGAL_Qt5" IN_LIST _target_links OR "CGAL::CGAL_Qt5" IN_LIST _target_links)
-      set_property(TEST "compilation of  ${_target}" APPEND PROPERTY FIXTURES_REQUIRED CGAL_Qt5_moc_and_resources_Fixture)
+    if("CGAL_Qt6" IN_LIST _target_links OR "CGAL::CGAL_Qt6" IN_LIST _target_links)
+      set_property(TEST "compilation of  ${_target}" APPEND PROPERTY FIXTURES_REQUIRED CGAL_Qt6_moc_and_resources_Fixture)
     endif()
     endforeach()
 endfunction()

Installation/cmake/modules/Help/CGAL_SetupCGAL_Qt6Dependencies.rst

@@ -0,0 +1 @@
+.. cmake-module:: ../CGAL_SetupCGAL_Qt6Dependencies.cmake

Installation/cmake/modules/Help/index.rst

@@ -16,7 +16,7 @@ Contents:
    CGAL_SetupBoost
    CGAL_SetupCGALDependencies
    CGAL_SetupCGAL_CoreDependencies
-   CGAL_SetupCGAL_Qt5Dependencies
+   CGAL_SetupCGAL_Qt6Dependencies
    CGAL_SetupCGAL_ImageIODependencies
 
 TODO