[Freewx-maint] Bug#745887: libwxgtk3.0-0: Please enable support for libnotify

[Christian Beier]

Am Mon, 11 Aug 2014 15:36:18 +1200
schrieb Olly Betts <olly at survex.com>:

> I've not yet tried a build to see if this is an ABI break, or it's
> actually all OK (wx uses symbol visibility and the wxNotificationMessage
> definition above for the generic case is all inline, so there's still
> some hope).

Hi there again,

I've built two versions of the library, one with libnotify support and one
without. Turns out that --with-libnotify is enabled by default and only
libnotify-dev needs to be added to the build-deps to get libnotify
notifications. The abi-compliance-checker tool
(http://ispras.linuxbase.org/index.php/ABI_compliance_checker) reported no
problems between the two versions, fine so far. 

I then tested with the dialogs sample from samples/dialogs/. Results: Binary
compiled against generic-notification-wx also runs fine on libnotify-wx, though
it shows the generic notifications still. A recompile yielded libnotify
notifications. Other way round it doesn't work: the dialogs binary built
against libnotify-wx does not run with generic-notification-wx, I get a
 
 ./dialogs: relocation error: ./dialogs: symbol _ZTV21wxNotificationMessage,
 version WXU_3.0 not defined in file libwx_gtk2u_adv-3.0.so.0 with link time
 reference

which is acceptable since we're moving the other direction...

Cheers,

   Christian