- add workaround from https://bugs.kde.org/show_bug.cgi?id=304111
- Disable some dependencies

Index: CMakeLists.txt
--- CMakeLists.txt.orig
+++ CMakeLists.txt
@@ -391,6 +391,8 @@ include(${CGAL_MODULES_DIR}/CGAL_Macros.cmake)
 include(${CGAL_MODULES_DIR}/CGAL_enable_end_of_configuration_hook.cmake)
 cgal_setup_module_path()
 
+add_definitions ( -DBOOST_TT_HAS_OPERATOR_HPP_INCLUDED )
+
 message( STATUS "CGAL_REFERENCE_CACHE_DIR=${CGAL_REFERENCE_CACHE_DIR}" )
 
 if ( RUNNING_CGAL_AUTO_TEST )
@@ -1073,15 +1075,9 @@ if ( CGAL_BRANCH_BUILD )
 
     message( "== Setting header checking ==" )
     find_package(GMP REQUIRED)
-    find_package(Doxygen REQUIRED)
     find_package(Eigen3 REQUIRED)
     find_package(Qt5 COMPONENTS Core Widgets Xml OpenGL Gui REQUIRED)
     find_package(VTK COMPONENTS vtkImagingGeneral  vtkIOImage NO_MODULE)
-    find_package(IPE)
-    find_package(RS3)
-    find_package(LEDA)
-    find_package(OpenMesh)
-    find_package(OpenCV QUIET)
 
     set(compile_options "\
 ${CMAKE_CXX_FLAGS} -DCGAL_EIGEN3_ENABLED -DCGAL_PROFILE \