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Description of problem: xchat-2.8.4-4.fc8.1 doesn't start anymore when only xchat and its dependencies are updated. But current xchat needs a symbol from glib2-2.14 without having a dependency on it. Version-Release number of selected component (if applicable): xchat-2.8.4-4.fc8.1 and glib2-2.13.6-1.fc8 : doesn't work, unknown symbol xchat-2.8.4-4.fc8.1 and glib2-2.14.1-1.fc8 : works How reproducible: always Additional info: please add a Requires: glib2 >= 2.14
Uh, the fact that compatibility is only one way and software built against more recent libs won't work with older libs is a well-known fact. This applies not only to glib2, but also to GTK+, Qt, KDE and even core libs like glibc. XChat is definitely not the only app affected by such issues. Do we want to hardcode such requirements in all apps? It would make the automatic soname reqs essentially useless, as you'd have to add manual Requires for minimum versions for all libs anyway. Fedora 8 is going to ship glib2-2.14.1 or newer, so I don't see why this would be an issue. Running F8 packages on F7 is a bad idea. (And in this case, it's not like I don't keep the F7 version up to date, I just pushed 2.8.4-5.fc7 to updates-testing.) And if you use Rawhide and only update parts of it, you get what you asked for.
*** Bug 344171 has been marked as a duplicate of this bug. ***