On 2012-03-08 16:12, Manu wrote:
On 8 March 2012 16:41, Jacob Carlborg <d...@me.com <mailto:d...@me.com>>
wrote:
On 2012-03-08 10:12, Manu wrote:
On 8 March 2012 00:21, Jonathan M Davis <jmdavisp...@gmx.com
<mailto:jmdavisp...@gmx.com>
<mailto:jmdavisp...@gmx.com <mailto:jmdavisp...@gmx.com>>> wrote:
On Wednesday, March 07, 2012 23:07:11 Mars wrote:
> On Friday, 2 March 2012 at 11:53:56 UTC, Manu wrote:
> > Personally, I just want to be able to link like a normal
> > windows developer.
> > My code is C/C++, built with VC, and I want to link my D app
> > against those
> > libs using the VC linker, and debug with Visual Studio. This is
> > the
> > workflow I think the vast majority of Windows devs will expect,
> > and it
> > sounds simple enough. This is the only thing standing between
> > me using D
> > for any major projects, and just experimenting with the
> > language for
> > evaluation, or just academic interest.
> > 64bit is far less important to me personally, VisualC linker
> > compatibility
> > is the big one. I just want to link against my C code without
> > jumping
> > through lots of hoops.
>
> That's exactly my problem... and although I love D, these hurdles
> made me take a step back, to C++, while I wait for this to
> change, so I can finally use D efficiently.
>
> I'm sure this isn't a trivial task, but the problematic isn't new
> after all. Why hasn't it been addressed yet? In my eyes this
> should be a top priority, to make it easier for new users to get
> into D. Till this poll I actually believed the problem was that D
> isn't used much by Windows users.
I don' think that Walter really views it as much of a
problem - or
if he does,
he didn't used to. Remember that he's used to an environment
where
he doesn't
use Visual Studio or Microsoft's C++ compiler. And his
customers use
dmc just
like he does (since they're his customers), so many of the
people
that he
interacts with in the C/C++ world are not necessarily
particularly
Microsoft-
centric on Windows.
Add to that the enormous task that it is to actually make
dmd work
with COFF
or 64-bit or anything of the sort on Windows, and it's no
wonder that it
hasn't happened yet.
To be fair, there are plenty of other things that have
needed to be
done, and
what we have for Windows does work, even if it's suboptimal. So,
it's not all
that unreasonable that the issue would be put off as long as
it has
been. And
Walter _has_ been slowing working on porting optlink to C
(the fact
that it's
written in assembly makes it really fast but hard to
maintain and
change),
which would make it possible to then start porting stuff to
64-bit and
considering COFF and stuff like that.
Is it possible to just fix the compiler to output COFF objects
*without*
touching optlink at all?
I'm not interested in using optlink with this feature, I intend
to link
with Visual Studio, that's the whole point. So ignoring optlink,
that's
a major slice of work taken out of the equation...
Maybe it would be nice to support optlink in future, but it
seems the
priority is backwards.
DMD would need to be compatible with the Microsoft linker and
runtime as well, that is, except from outputting object file in the
correct format.
By 'runtime' you mean the crt? I don't think that'll be a major
headache. Probably just a few subtle differences to deal with.
A nice side effect would be that all those horrid OMF conversions of MS
libs bundled with D wouldn't be necessary.
Yes, the runtime used by the Microsoft compiler.
And what else affects linker compatibility other than object format and
mangling convention?
How is DMD actually affected by any of this other than object format?
Name mangling?
Jonathan explained this very good.
--
/Jacob Carlborg