proposed change by psyill

3rdparty/tbb/CMakeLists.txt

@@ -212,7 +212,13 @@ else()
 endif()
 
 ocv_warnings_disable(CMAKE_CXX_FLAGS -Wundef -Wmissing-declarations)
-string(REPLACE "-Werror=non-virtual-dtor" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+
+# filter out flags that are not handled well by the TBB code
+foreach(var CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_DEBUG)
+  string(REPLACE "-Werror=non-virtual-dtor" "" ${var} "${${var}}")
+  string(REPLACE "-fvisibility=hidden" "" ${var} "${${var}}")
+  string(REPLACE "-fvisibility-inlines-hidden" "" ${var} "${${var}}")
+endforeach()
 
 if (WIN32)
   set(tbb_debug_postfix "_debug") # to fit pragmas in _windef.h inside TBB