Hi,
https://community.kde.org/Frameworks/Policies#Frameworks_compiler_requirements_and_C.2B.2B11 states gcc 4.5 as the minimum version, meaning we can't use nullptr. However, since some time now, kf5 libraries are full of nullptr (~400 occurrences) and nobody noticed. We can either: - Bump the requirement to gcc 4.6 and allow nullptr - Fix kf5 and s/nullptr/Q_NULLPTR I prefer the first option, it's the way forward and if someone was using an old gcc he would have complained by now. Btw, what are the c++98/c++11 requirements for applications ? I could only find the page for frameworks. Regards, -- Sérgio Martins