Install ccmake.1 and cmake-gui.1 conditionally with their tools (#15957)

Utilities/Sphinx/CMakeLists.txt

@@ -156,6 +156,14 @@ if(SPHINX_MAN)
     if("x${m}" MATCHES "^x(.+)\\.([1-9])\\.rst$")
       set(name "${CMAKE_MATCH_1}")
       set(sec "${CMAKE_MATCH_2}")
+      if(NOT CMakeHelp_STANDALONE)
+        if(name STREQUAL "ccmake" AND NOT BUILD_CursesDialog)
+          continue()
+        endif()
+        if(name STREQUAL "cmake-gui" AND NOT BUILD_QtDialog)
+          continue()
+        endif()
+      endif()
       CMake_OPTIONAL_COMPONENT(sphinx-man)
       install(FILES ${CMAKE_CURRENT_BINARY_DIR}/man/${name}.${sec}
               DESTINATION ${CMAKE_MAN_DIR}/man${sec}