http://d.puremagic.com/issues/show_bug.cgi?id=4010

           Summary: dmd should support linkers other than OPTLINK
           Product: D
           Version: future
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Optlink
        AssignedTo: nobody@puremagic.com
        ReportedBy: nfxjfg@gmail.com


--- Comment #0 from nfxjfg@gmail.com 2010-03-26 04:34:28 PDT ---
Because of the general instability of OPTLINK, I request that dmd should be able to generate object files consumable by other linkers. OPTLINK is the only OMF linker I've found capable to link dmd's output.

Possible targets include the Microsoft linker (supports COFF) or the GNU linker
(supports both COFF and ELF on Windows).

dmd already has an Linux and a MacOSX backend, both with different object file formats; this can't be a too unrealistic feature request.

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nfxjfg@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID


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Brad Roberts <braddr@puremagic.com> changed:

           What    |Removed                     |Added
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             Status|RESOLVED                    |REOPENED
                 CC|                            |braddr@puremagic.com
         Resolution|INVALID                     |


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Jonathan M Davis <jmdavisProg@gmx.com> changed:

           What    |Removed                     |Added
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                 CC|                            |jmdavisProg@gmx.com


--- Comment #1 from Jonathan M Davis <jmdavisProg@gmx.com> 2011-01-06 20:50:39 PST ---
This is actually one which I'd really like to see done at some point. The fact that you have to use dmc to build your C/C++ code is a huge blocker for D on Windows for anyone who works in an environment which is primarily using Microsoft or Intel's compiler. It would not be possible for me to use dmc for C++ where I work, which makes using D there much harder, even if I were to end up with a project where I would have a chance of choosing to use it in D.

There was a discussion about this on the D list a while back, and it was suggested that dmd at least be altered such that you could have a plugin architecture of some kind to swap out linkers. That way, even though dmd would still use dmc/optlink normally, someone other than Walter could then write and maintain a plugin which used Microsoft's compiler. So, we could potentially get support for other linkers without requiring Walter to deal with it.

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--- Comment #2 from Brad Roberts <braddr@puremagic.com> 2011-01-06 20:53:11 PST ---
If someone wants to write the .obj writer for an alternate format, do it.  How to wire it up with dmd is the least of the problems.

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--- Comment #3 from Jonathan M Davis <jmdavisProg@gmx.com> 2011-01-06 20:55:52 PST ---
Likely true. But as with many things around here, it requires someone to step up and do it.

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Walter Bright <bugzilla@digitalmars.com> changed:

           What    |Removed                     |Added
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                 CC|                            |bugzilla@digitalmars.com


--- Comment #4 from Walter Bright <bugzilla@digitalmars.com> 2011-01-06 22:59:05 PST ---
It's more than just writing a different object file format, if the goal is to link with VC output. It's being ABI compatible with whatever the VC compiler puts out.

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Andrej Mitrovic <andrej.mitrovich@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |andrej.mitrovich@gmail.com


--- Comment #5 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2012-12-20 15:08:34 PST ---
(In reply to comment #4)
> It's more than just writing a different object file format, if the goal is to link with VC output. It's being ABI compatible with whatever the VC compiler puts out.

Is this issue now solved since x64 uses the VC linker?

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--- Comment #6 from Brad Roberts <braddr@puremagic.com> 2012-12-20 15:11:57 PST ---
I wouldn't consider it done until win/32 is also migrated to the visual studio runtime and linker.  I admit that's an expansion of the original description of this issue, but I think it's the spirit of it.  And I agree with the spirit.

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--- Comment #7 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2012-12-20 15:16:10 PST ---
(In reply to comment #6)
> I wouldn't consider it done until win/32 is also migrated to the visual studio runtime and linker.  I admit that's an expansion of the original description of this issue, but I think it's the spirit of it.  And I agree with the spirit.

I'm totally for having support for COFF on win32 too, but IIRC Walter mentioned win32 will stay with Optlink? (I might be wrong).

You can currently use one other linker on win32 though, Unilink. It often gives out readable error messages rather than crashing like Optlink.

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