Peter Humphrey wrote: > On Monday 22 May 2017 09:49:01 Jörg Schaible wrote: >> Hi Peter, >> >> Peter Humphrey wrote: >> >> [snip] >> >> > Have you seen https://bugs.gentoo.org/show_bug.cgi?id=595618 ? It says >> > that "Qt plugins compiled with gcc-4 are incompatible with >> > <dev-qt/qtcore-4.8.7 compiled with gcc-5." I don't see how portage can >> > be >> > expected to anticipate that. On the other hand, some kind of notice >> > could >> > be issued, and bug 618922 is pursuing that. (That's the one I started >> > this thread with.) >> >> well, this does not seem to be the complete truth. When I switched to gcc >> 5.x I did a revdep-rebuild for anything that was compiled against >> libstdc++.so.6 just like the according news entry was recommending. And I >> am quite sure that those Qt plugins were part of my 515 recompiled >> packages. >> >> Nevertheless, my KDE 4 apps were broken after the update to Qt 4.8.7. >> Rebuilding anything that was using libQtCore.so.4 solved it, but I fail >> to see how this is related to the gcc update two weeks ago. > > I can only suggest you read bug report 618922 if you haven't already, > including following its reference to bug 595618. It makes sense to me.
It does not for me. My packages were already compiled with gcc-5.4.0. Those Buzilla issues only talk about (plasma/qt) packages compiled with previous gcc-4.x which are supposed to be incompatible. All of the plasma/qt related packages that have been recompiled, because they were built upon libQtCore.so.4 were already recompiled with gcc5. I've checked my logs. Cheers, Jörg
