private export

[Aleix Pol]

On Tue, Oct 14, 2014 at 10:37 PM, Jeremy Whiting <jpwhiting at kde.org> wrote:

> Hello,
>
> In KNewStuff autotests there are two disabled tests that build and
> work if I export the Author and EntryInternal classes, but these two
> classes are private (declared in _p.h files) so I'd rather not export
> them, since they aren't public api. Is there a way to have them
> exported when BUILD_TESTING is set only? I didn't see anything obvious
> in the knewstuff_export.h generated header. I guess I could have the
> class declarations wrapped in #ifdef BUILD_TESTING but that seems like
> a hack. Is there a proper way to only export private classes when
> building and running tests?
>
> thanks,
> Jeremy
>

You can do things like that with cmake library objects. See documentation
for add_library(... OBJECT ...).

It will make it possible for you to have objects in different targets so
they are compiled once but in different places. I used it here as a test
[1]. It's not magic, but it saves some compilation time and possible
complexity.

Cheers!
Aleix

[1] kde:scratch/apol/kanboardclient
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