[CMake] How to specify that a target link library is shared ?

[Andy Lego]

Hello,

The def file was always a bit of a mystery to me, since you do not specify
it on the command line but the linker just finds it magically. I much prefer
the import/export mechanism.

Here is what I typically did when I still did some Win32 programming:

Add the following code in your header file:

#if defined(_WIN32)
#if defined(mylib_EXPORTS)
  #define MYLIB_EXPORT __declspec( dllexport )
 #else
  #define MYLIB_EXPORT __declspec( dllimport )
 #endif
#else
  #define MYLIB_EXPORT
#endif

Then every symbol you want to use outside the shared lib export like this:

class MYLIB_EXPORT someClass {
...
};

and

MYLIB_EXPORT void someFunc();

and so on.

Hope this helps.

Andy



On Tue, Oct 7, 2008 at 11:25 AM, Andrea Borsic
<Andrea.Borsic at dartmouth.edu>wrote:

> Hi All,
>
> Yes it is the .def file that defines the import/exports, but the linking
> stage fails before taking care of these aspects: it looks for
> triagle_lib.lib which is not there and stops before considering symbol
> resolutions.
>
> Thanks for your help, I will be reading all the emails that came in,
>
> Regards,
>
> Andrea
>
>
>
> Joshua L. Blocher wrote:
>
>> Isn't the def files the defines the export symbols.
>>
>> Boudewijn Rempt wrote:
>>
>>> On Tue, 7 Oct 2008, Andrea Borsic wrote:
>>>
>>>
>>>
>>
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-- 
Lets bike the world together
http://legoandy.com
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