Found the following significant warnings:
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src/DynamicBinding.hpp:50:14: warning: ‘DynamicBinding::_flags’ will be initialized after [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src/DynamicBinding.hpp:49:22: warning:   ‘QVector<SmokeType> DynamicBinding::_types’ [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src/DynamicBinding.hpp:18:3: warning:   when initialized here [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src/DynamicBinding.hpp:22:3: warning:   when initialized here [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src/DataFrameModel.hpp:63:8: warning: ‘DataFrameModel::_rowHeader’ will be initialized after [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src/DataFrameModel.hpp:62:8: warning:   ‘SEXPREC* DataFrameModel::_roles’ [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src/DataFrameModel.hpp:11:3: warning:   when initialized here [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src/DataFrameModel.hpp:67:8: warning: ‘DataFrameModel::_useRoles’ will be initialized after [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src/DataFrameModel.hpp:14:54: warning:   base ‘QAbstractTableModel’ [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src-build/../src/DataFrameModel.hpp:63:8: warning: ‘DataFrameModel::_rowHeader’ will be initialized after [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src-build/../src/DataFrameModel.hpp:62:8: warning:   ‘SEXPREC* DataFrameModel::_roles’ [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src-build/../src/DataFrameModel.hpp:11:3: warning:   when initialized here [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src-build/../src/DataFrameModel.hpp:67:8: warning: ‘DataFrameModel::_useRoles’ will be initialized after [-Wreorder]
  /home/hornik/tmp/scratch/Rtmp8xmqSk/R.INSTALL9a472e2a2e0/qtbase/src-build/../src/DataFrameModel.hpp:14:54: warning:   base ‘QAbstractTableModel’ [-Wreorder]
See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/qtbase.Rcheck/00install.out’ for details.