Produce some COFF object with 2.066 ?

[Brad Anderson via Digitalmars-d-learn]

On Wednesday, 20 August 2014 at 23:56:23 UTC, Baz wrote:
> Hello, I've been very interested about the announce saying that 
> DMD is able to produce COFF object files. Mostly because I'm 
> thinking using some objects programmed in D in a software 
> programmed in another lang, a bit like when statically linking 
> a dll to a program but with an obj, to keep a nice monolithic 
> executable.
>
> First thing: I've tried a simple thing: compile an exported 
> function with the args "myfile.d -c -ms32mscoff" and dmd 
> complains that "-ms32mscoff" is not a recognized switch.
>

32-bit COFF is only in git master currently. It'll be in 2.067 
when that comes out. 64-bit COFF has been in dmd for quite some 
time now. You just have to have a copy of Visual Studio installed 
(the free Express edition should be fine) and compile with -m64.

> Second thing:
> If I understand well, it means that previously, to link D a 
> object with a soft programmed in another lang was not possible 
> because the OMF objs don't include everything (e.g the objs 
> coming from other imported static libs) and that now it's 
> faisable ?  right ?

They'd just have to both be OMF format if you wanted to 
statically link. If you had a DLL you could create an import 
library from the DLL and still link that just fine. Walter has a 
tool on Digital Mars to do it.  Now you should be able to 
directly link to COFF libraries.