message: core(alloc): force initialization of memalign flag
  before main() launch
diff: @@ -112,6 +112,13 @@ bool isAlignedAllocationEnabled()
  }
  return useMemalign;
  }
  +// do not use variable directly, details: https://github.com/opencv/opencv/issues/15691
  +static const bool g_force_initialization_memalign_flag
  +#if defined __GNUC__
  + __attribute__((unused))
  +#endif
  + = isAlignedAllocationEnabled();
  +
  #endif
  #ifdef OPENCV_ALLOC_ENABLE_STATISTICS
  