Merge pull request #14170 from alalek:cmake_hide_helper_modules

CMakeLists.txt

@@ -1203,7 +1203,13 @@ status("    3rdparty dependencies:" ${deps_3rdparty})
 # ========================== OpenCV modules ==========================
 status("")
 status("  OpenCV modules:")
-string(REPLACE "opencv_" "" OPENCV_MODULES_BUILD_ST          "${OPENCV_MODULES_BUILD}")
+set(OPENCV_MODULES_BUILD_ST "")
+foreach(the_module ${OPENCV_MODULES_BUILD})
+  if(NOT OPENCV_MODULE_${the_module}_CLASS STREQUAL "INTERNAL" OR the_module STREQUAL "opencv_ts")
+    list(APPEND OPENCV_MODULES_BUILD_ST "${the_module}")
+  endif()
+endforeach()
+string(REPLACE "opencv_" "" OPENCV_MODULES_BUILD_ST          "${OPENCV_MODULES_BUILD_ST}")
 string(REPLACE "opencv_" "" OPENCV_MODULES_DISABLED_USER_ST  "${OPENCV_MODULES_DISABLED_USER}")
 string(REPLACE "opencv_" "" OPENCV_MODULES_DISABLED_AUTO_ST  "${OPENCV_MODULES_DISABLED_AUTO}")
 string(REPLACE "opencv_" "" OPENCV_MODULES_DISABLED_FORCE_ST "${OPENCV_MODULES_DISABLED_FORCE}")