vtk-system-libs.patch

   1 diff --git a/CMake/vtkModuleMacros.cmake b/CMake/vtkModuleMacros.cmake
   2 index 3e746a6..9ef38fd 100644
   3 --- a/CMake/vtkModuleMacros.cmake
   4 +++ b/CMake/vtkModuleMacros.cmake
   5 @@ -563,7 +563,7 @@ macro(vtk_module_third_party _pkg)
   6      message(FATAL_ERROR "Cannot specify both LIBRARIES and NO_LIBRARIES")
   7    endif()
   8
   9 -  option(VTK_USE_SYSTEM_${_upper} "Use system-installed ${_pkg}" OFF)
  10 +  option(VTK_USE_SYSTEM_${_upper} "Use system-installed ${_pkg}" ${VTK_USE_SYSTEM_LIBRARIES})
  11    mark_as_advanced(VTK_USE_SYSTEM_${_upper})
  12
  13    if(VTK_USE_SYSTEM_${_upper})
  14 diff --git a/CMakeLists.txt b/CMakeLists.txt
  15 index 0d1dda8..b3e1801 100644
  16 --- a/CMakeLists.txt
  17 +++ b/CMakeLists.txt
  18 @@ -97,6 +97,11 @@ set(VTK_INSTALL_INCLUDE_DIR_CM24 ${VTK_INSTALL_INCLUDE_DIR})
  19  set(VTK_INSTALL_DOXYGEN_DIR_CM24 ${VTK_INSTALL_DATA_DIR}/doxygen)
  20
  21  #-----------------------------------------------------------------------------
  22 +# Do we try to use system libraries by default?
  23 +OPTION(VTK_USE_SYSTEM_LIBRARIES "Use the system's libraries by default." OFF)
  24 +MARK_AS_ADVANCED(VTK_USE_SYSTEM_LIBRARIES)
  25 +
  26 +#-----------------------------------------------------------------------------
  27  # The third party macros are still used in one or two third party builds.
  28  include(vtkThirdParty)
  29