Can't get D calling C to build.

[div0]

On 21/08/2010 22:07, Bob Cowdery wrote:
>   On 20/08/2010 18:44, div0 wrote:
>> On 20/08/2010 09:17, Bob Cowdery wrote:
>>>
>>> I'm still concerned it's a bit too soon as a lot of things seem to be
>>> either Windows or Linux (cmake says its only tested for *nix) but not
>>> both and there is very little guidance on building. I really want to get
>>> this working on Windows first. As D makes so much of its binary
>>> compatibility with C I find it odd that there is no information on how
>>> to build mixed systems just on how to code the calls.
>>
>> C compatibly is fine as long as you either build with dmc
>> or convert the VC c libs to dmc's format. The conversion tool is only
>> available as part of the paid tool set off of digital mars I think;
>> though possibly there's a free one around.
>>
>> Try searching the learn archive it's been discussed before.
>>
>> Personnaly I just compile stuff with dmc and it all works great as
>> long as you get the extern c declarations right.
>>
> I have compiled all my stuff now with dmc. It has some differences from
> gcc which caused me some issues. I then went to link up my program with
> a D front end and realised that I use many 3rd party libraries which
> will all need to be converted.  This doesn't seem like such a great idea
> any more. Why does a modern language use an old object format I wonder.
 >
> For me at least I'm wondering if it stacks up. Linux support seems
> secondary (correct me if I'm wrong). The only painless way to use C
> libraries is as dll's and even then the import library must be converted
> for which the tool in not free. The language itself is nice but the
> hassle factor for mixed language multi-platform seems quite high. I hope
> I'm wrong on both counts.

Well that's true; D still isn't really ready for production use, unless 
you have time or money to burn to do a lot of it yourself.

I love D, but I only use it for my own small hobby projects.

Mr B has stated though that once d2 is wrapped up (which should be just 
about now) he's going to start concentrating on the tool chain, so these 
sorts of issues I expect will get much better over the next 6 months.

-- 
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