Why export external(C) generate mangled names?

[Daniel Kozak]

On Fri, Oct 25, 2019 at 12:35 PM Suliman via Digitalmars-d
<digitalmars-d at puremagic.com> wrote:
>
> I thought that export extern(C) is needed for C compatibility.
> But When I am compiling follow code
>
> export extern(C)
> {
>      void foo()
>      {
>      }
> }
>
> I am getting section that have mangled names:
>
> �   foo.d �   �7nO �   � CV �,
>  FLAT _TEXT CODE _DATA DATA CONST _BSS BSS �     �        �      i
>     �    i        �      i        �    �   _foo �
>    �   �   _foo  �   FMB FM FME �        �        �      �       �       �
>    �     __D3foo12__ModuleInfoZ      �
>
> � �               foo  �
>             �  �     �
>
> Why is __D3foo12__ModuleInfoZ added to obj file?

Try to compile with -betterC