http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60566
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to Markus Trippelsdorf from comment #9) > Running nm on all my libs shows: > ... > kde4/notepadpart.so > U _ZThn16_N6KParts13ReadWritePartD0Ev > ... > kde4/okularpart.so > U _ZThn16_N6KParts13ReadWritePartD0Ev > ... > libkatepartinterfaces.so > U _ZThn16_N6KParts13ReadWritePartD0Ev > libkatepartinterfaces.so.4 > U _ZThn16_N6KParts13ReadWritePartD0Ev > libkatepartinterfaces.so.4.12.3 > U _ZThn16_N6KParts13ReadWritePartD0Ev > ... > libktexteditor.so > U _ZThn16_N6KParts13ReadWritePartD0Ev > libktexteditor.so.4 > U _ZThn16_N6KParts13ReadWritePartD0Ev > libktexteditor.so.4.12.3 > U _ZThn16_N6KParts13ReadWritePartD0Ev > > So maybe okular and katepart just need to be recompiled? > Let me try this. So the errors were dlopen errors when trying to load those libraries? BTW, were those shared libraries built by some earlier version of G++ 4.9, or G++ 4.8 (or some older version)?