On Sat, 2015-04-11 at 15:43 +0200, Juan R. Garcia Blanco wrote: > Hi, > > In GNOME Dictionary 3.16.0, _GdictDefboxClass provided four members that > are function pointers 'for future expansion'. If I understand this > correctly, these four extra members act as a place holder in case we > want to add a new meaningful function pointer member, therefore removing > one of the extra ones. This is done in order to provide binary > compatibility I think. > > On the road to GNOME Dictionary 3.16.1, I have added a new signal to > GdictDefbox, therefore adding a new function pointer member to > _GdictDefboxClass, but I have not removed any of the extra members. So > my question is: should I remove one of the extra members to preserve > binary compatibility? Or should I just simply increment LT_VERSION > appropriately?
You should remove one of the padding members, otherwise the size of the GdictDefboxClass structure has changed, and binary compatibility is broken. Philip
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