I try to build a DLL with dmd on windows with tango.

with empty functions that worked. When i put only a switch statement
into a method, the linker complains about a missing "__Dmain". Why is that?

Frank Benoit wrote:
> I try to build a DLL with dmd on windows with tango.
> 
> with empty functions that worked. When i put only a switch statement
> into a method, the linker complains about a missing "__Dmain". Why is that?

Did you include a DllMain?

http://www.digitalmars.com/d/dll.html

Also check out the mydll example the comes with dmd.

Frank Benoit wrote:
> I try to build a DLL with dmd on windows with tango.
> 
> with empty functions that worked. When i put only a switch statement
> into a method, the linker complains about a missing "__Dmain". Why is that?

I don't think DLL's are created with the linker, they are created with lib.exe -> http://www.digitalmars.com/ctg/lib.html

torhu wrote:
> Frank Benoit wrote:
>> I try to build a DLL with dmd on windows with tango.
>>
>> with empty functions that worked. When i put only a switch statement
>> into a method, the linker complains about a missing "__Dmain". Why is that?
> 
> Did you include a DllMain?
> 
> http://www.digitalmars.com/d/dll.html
> 
> Also check out the mydll example the comes with dmd.

Please note that the process of actually initializing the runtime for a Tango DLL is somewhat different than Phobos.  You basically just call rt_init() to initialize and rt_term() to terminate.  I'll see about documenting this somewhere.


Sean

Charlie wrote:
> Frank Benoit wrote:
>> I try to build a DLL with dmd on windows with tango.
>>
>> with empty functions that worked. When i put only a switch statement
>> into a method, the linker complains about a missing "__Dmain". Why is that?
> 
> I don't think DLL's are created with the linker, they are created with lib.exe -> http://www.digitalmars.com/ctg/lib.html

No, DLLs (aka Dynamic Link Libraries) are created by the linker. Libraries (aka Static Link Libraries) are created by lib.

Walter Bright wrote:
> Charlie wrote:
>> Frank Benoit wrote:
>>> I try to build a DLL with dmd on windows with tango.
>>>
>>> with empty functions that worked. When i put only a switch statement
>>> into a method, the linker complains about a missing "__Dmain". Why is that?
>>
>> I don't think DLL's are created with the linker, they are created with lib.exe -> http://www.digitalmars.com/ctg/lib.html
> 
> No, DLLs (aka Dynamic Link Libraries) are created by the linker. Libraries (aka Static Link Libraries) are created by lib.

Ack, ignore me !