Vincent Untz wrote:

I just found out about https://bugzilla.novell.com/655561. The short story is that the update to glib 2.27 is breaking LXDE (and maybe XFCE, not sure) at the moment, because an extension point in glib got removed. [...] It's worth pointing out that upstream believes that the extensions points are not part of the API/ABI stability guarantee. [...] c) patch glib 2.28 to add back the extension point. We have two sub-options here: c1) add the extension point just to keep the ABI. This means the extensions won't be used at all, and we still need to fix .desktop files.

Reintroducing the missing symbol as noop at least doesn't lead to mysterious crashes at run time. Removing functions is just crazy. Why don't they use symbol versioning anways? cu Ludwig -- (o_ Ludwig Nussel //\ V_/_ http://www.suse.de/ SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nuernberg) -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org

* Vincent Untz [2010-11-24 13:55]:

Hi,

I just found out about https://bugzilla.novell.com/655561. The short story is that the update to glib 2.27 is breaking LXDE (and maybe XFCE, not sure) at the moment, because an extension point in glib got removed.

That's my fault as I didn't think it would impact something else than GNOME. Apologies for breaking stuff.

The extension point that got removed is used to know which application should be used to open a URI scheme (for example: mailto => evolution). The reason it got removed is that instead of using a desktop-specific approach, it was decided to put the relevant information in .desktop files and use the MIME type system for this. This means that glib can handle this properly by itself, instead of requiring a desktop-specific extension. I explained this in http://lists.opensuse.org/opensuse-gnome/2010-10/msg00021.html

It's worth pointing out that upstream believes that the extensions points are not part of the API/ABI stability guarantee.

We were planning to use glib 2.28 in openSUSE 11.4 as it'll get released in December, and will help provide a GNOME 3 preview. However, the fact that this breaks other desktop is something that means we should revisit this decision.

As explained in the bug, I see three options:

a) keep glib 2.28. This implies that we need to fix the extensions provided by LXDE (and maybe XFCE?), and that we should fix .desktop files as explained in my mail to opensuse-gnome earlier. Both of those are not difficult, and it's future-proof: that is what is going to happen upstream.

b) go back to glib 2.26. This should be okay, but it might break a few packages. It will break the whole gtk3 stack for sure, at least, since it requires glib 2.27/2.28. So this means accepting that we won't have gtk3 at all in openSUSE 11.4. (It will make the job of doing a GNOME 3 Preview much harder)

c) patch glib 2.28 to add back the extension point. We have two sub-options here: c1) add the extension point just to keep the ABI. This means the extensions won't be used at all, and we still need to fix .desktop files. c2) revert the change completely in glib 2.28, and make use of the extensions again.

Have you seen http://git.gnome.org/browse/glib/commit/?id=fb94859e84c0b7859a0a5425d461b18e... ? Seems like they have realized that this was a very bad idea. -- Guido Berhoerster -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org

Le mercredi 24 novembre 2010, à 13:55 +0100, Vincent Untz a écrit :

c) patch glib 2.28 to add back the extension point. We have two sub-options here: c1) add the extension point just to keep the ABI. This means the extensions won't be used at all, and we still need to fix .desktop files.

FWIW, we're going this way (already in Factory), which was also chosen upstream. Cheers, Vincent -- Les gens heureux ne sont pas pressés. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org