Hi,

I am trying to link C and D (using GCC and GDC) and I am wondering (I could find no answers on google) if it is possible to compile C headers into object files and link them to D?  I have a large code base of C headers and am not at a point where I can translate them all to D in one go, so I need to be able to link to the headers.

Thanks.

On Thursday, 12 January 2017 at 04:54:18 UTC, DRex wrote:
> Hi,
>
> I am trying to link C and D (using GCC and GDC) and I am wondering (I could find no answers on google) if it is possible to compile C headers into object files and link them to D?  I have a large code base of C headers and am not at a point where I can translate them all to D in one go, so I need to be able to link to the headers.
>
> Thanks.

You can't compile headers. You compile source files. Do that, and yes, you can link object files and libraries with your compiled D code. D uses the same file formats and linkers as C.

However, the D compiler needs to know what symbols are available for you to use on the C side, so you any C functions you want to call and types you want to use have to be translated to D. You can do it manually or use a tool like DStep to do the bulk of the work for you. See the links in the forum post at [1] for more info.

[1] http://forum.dlang.org/post/o55cie$2vb8$1@digitalmars.com