I'm trying to link DMD D objects together with Cygwin GCC objects. I convert DMD OMF to COFF using link.exe -edit.
I use gphobos as runtime library.
Problem: When I declare a class in D, linking fails due to not resolved symbols like _Object7__ClassZ
I tried to convert DMD phobos lib to coff (using link.exe), but this failed at stream.obj, which had too many ?? sections. All other files went fine.
I must use the GCC linker, so what can I do to get the DMD phobos lib in COFF?

On Wed, Nov 5, 2008 at 8:17 AM, Simon <werbungsfilter@arcor.de> wrote:
> I'm trying to link DMD D objects together with Cygwin GCC objects. I convert DMD OMF to COFF using link.exe -edit.
> I use gphobos as runtime library.
> Problem: When I declare a class in D, linking fails due to not resolved symbols like _Object7__ClassZ
> I tried to convert DMD phobos lib to coff (using link.exe), but this failed at stream.obj, which had too many ?? sections. All other files went fine.
> I must use the GCC linker, so what can I do to get the DMD phobos lib in COFF?
>
>

Converting object files from one format to another is a "cross your fingers" situation at best.

You'd probably be better off using GDC for Windows.  It uses MinGW and outputs the same COFF objects that Cygwin's GCC uses.

You may try objconv from www.agner.org/optimize

And then cross your fingers.

Ciao
Tom

TomD wrote:
> You may try objconv from www.agner.org/optimize
> 
> And then cross your fingers.
> 
> Ciao
> Tom

It probably doesn't work with DMD obj files yet. An update will be released in a couple of days, which includes some changes I made, to allow asm output from DMD obj files. Agner's made other improvements, but I don't know what they are yet.
But it still probably can't convert DMD obj's to coff format. Worth a try through.