Index: ParaView-v5.2.0/CMake/ParaViewMacros.cmake
===================================================================
--- ParaView-v5.2.0.orig/CMake/ParaViewMacros.cmake
+++ ParaView-v5.2.0/CMake/ParaViewMacros.cmake
@@ -251,9 +251,16 @@ function (generate_htmls_from_xmls outpu
   # file we use.
   get_filename_component(first_xml "${first_xml}" NAME)
 
+  if (PARAVIEW_QT_VERSION STREQUAL "4")
+    set(qt_binary_dir_hints "${QT_BINARY_DIR}")
+  else() # Qt5
+    # Qt5's CMake config doesn't support QT_BINARY_DIR
+    set(qt_binary_dir_hints "${Qt5_DIR}/../../../bin")
+  endif()
+
   find_program(QT_XMLPATTERNS_EXECUTABLE
-    xmlpatterns
-    HINTS "${QT_BINARY_DIR}"
+    NAMES xmlpatterns xmlpatterns-qt5
+    HINTS "${qt_binary_dir_hints}"
     DOC "xmlpatterns used to generate html from Proxy documentation.")
   mark_as_advanced(QT_XMLPATTERNS_EXECUTABLE)
 
@@ -339,9 +346,16 @@ function(build_help_project name)
     message(FATAL_ERROR "No DESTINATION_DIRECTORY specified in build_help_project()")
   endif()
 
+  if (PARAVIEW_QT_VERSION STREQUAL "4")
+    set(qt_binary_dir_hints "${QT_BINARY_DIR}")
+  else() # Qt5
+    # Qt5's CMake config doesn't support QT_BINARY_DIR
+    set(qt_binary_dir_hints "${Qt5_DIR}/../../../bin")
+  endif()
+
   find_program(QT_HELP_GENERATOR
-    qhelpgenerator
-    HINTS "${QT_BINARY_DIR}"
+    NAMES qhelpgenerator qhelpgenerator-qt5
+    HINTS "${qt_binary_dir_hints}"
     DOC "qhelpgenerator used to compile Qt help project files")
   mark_as_advanced(QT_HELP_GENERATOR)