I believe Alexander has been doing similar things for OS/2.
I'll have a peek.
I'm not too familiar with NT. I guess exporting symbols in
this way makes a difference. Could you tell me exactly what
it causes ?
Danny
On Fri, 2004-05-28 at 19:57, Dave Williss wrote:
> I'm building lesstif as a dll on Windows and ran across a problem
> which is tedious to fix but not very difficult. The include files
> don't
> export anything.
>
> To fix this, I added the following lines to Xm/Xm.h
>
> #ifdef WIN32
> #ifdef XMDLL /* <-- Set this when compiling Lesstif as a
> DLL */
> #define XMLIBEXPORT __declspec(dllexport)
> #else
> #define XMLIBEXPORT __declspec(dllimport)
> #endif
> #else
> #define XMLIBEXPORT extern
> #endif
>
> I then went through all the include files and added XMLIBEXPORT
> in front of every function that needs to be exported (and maybe some
> that don't)
>
> Now I have a set of Xm include files which export functions from the
> DLL, and when my applications include them, they know that the
> functions
> are to be imported from a DLL. This is unnecessary for gcc on Unix
> machines, but necessary for Microsoft VC compiler on Windows.
>
> The logic on when XMLIBEXPORT is set to what may need to change.
> It doesn't account for the possibility of static linking on Windows,
> for
> example.
>
> Once I had changed all the include files (unfortunately in a merged Xm
> directory, not separated out by version like in the distribution) I
> used
> Araxis Merge to generate a diff report for the whole thing. This gave
> a diff file for each changed file.
>
> I posted the report on our web site here...
>
> http://www.microimages.com/LesstifIncludeFileChanges/
>
> This is temporary. I'll take it down in a couple weeks.
>
> Comments about exporting symbols from the DLL are welcome.
> If anybody has a better idea, let me know. If you'd like a better
> form of diff, tell me know the command line parameters to standard
> Unix diff to generate the output you'd like.
>
>
> -- Dave Williss
> ------
> Meddle not in the affairs of dragons,
> for you are crunchy and taste good with catsup
--
Danny Backx - danny.backx-at-skynet.be
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