Re: [PATCH 0/1] MR1128: msvcrt: Display message box in abort() in debug CRT only.

[Piotr Caban (＠piotr)]

Piotr Caban (@piotr) commented about dlls/msvcrt/exit.c:
>  if ((MSVCRT_error_mode == _OUT_TO_MSGBOX) ||
>     ((MSVCRT_error_mode == _OUT_TO_DEFAULT) && (MSVCRT_app_type == 2)))
>  {
>
> +#ifdef _CRTDEBUG
>        DoMessageBox("Runtime error!", "abnormal program termination");
> +#endif

The message box should be displayed in older versions of msvcr dlls (e.g. msvcr90). ucrtbase (I didn't test other versions) is also not printing any message to console.

Did you consider defining _DEBUG instead of _CRTDEBUG?