How to Declare a new pragma ?

[FrankLike via Digitalmars-d-learn]

On Sunday, 21 December 2014 at 17:04:45 UTC, ketmar via 
Digitalmars-d-learn wrote:
> On Sun, 21 Dec 2014 16:42:45 +0000
> FrankLike via Digitalmars-d-learn 
> <digitalmars-d-learn at puremagic.com>
> wrote:
>
>> I want to get that :  pragma(link, "SUBSYSTEM WINDOWS,4.0");
>> 
>> But get error:pragma link unrecognized pragma(link)?
>> How can I to do?
>> 
>> Thank you.
> you have to patch the compiler to recognize your new pragma and 
> do
> something with it. you can't do this from your D code.

Now ,x64  mainform  always  have  the  console  window,and  the  
entry  is main.
could  you  do  it?
Thank  you.