message: android: std::exception_ptr is not available on some platforms (even with enabled C++11)
diff: #ifndef CV__EXCEPTION_PTR
  -# ifdef CV_CXX11
  +# if defined(__ANDROID__) && defined(ATOMIC_INT_LOCK_FREE) && ATOMIC_INT_LOCK_FREE < 2
  +# define CV__EXCEPTION_PTR 0 // Not supported, details: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58938
  +# elif defined(CV_CXX11)
  # define CV__EXCEPTION_PTR 1
  # elif defined(CV_ICC)
  # define CV__EXCEPTION_PTR 1
  #endif
  #ifndef CV__EXCEPTION_PTR
  # define CV__EXCEPTION_PTR 0
  -#else
  +#elif CV__EXCEPTION_PTR
  # include <exception> // std::exception_ptr
  #endif
  