Solution:
Open file vtkBMPReader.cxx in your VTK source directory and replace both old lines (O) by the new ones (N):
(O) self->GetFile()->seekg(self->GetFile()->tellg() + streamSkip0, ios::beg);
(N) self->GetFile()->seekg(static_cast<long>(self->GetFile()->tellg()) + streamSkip0, ios::beg);
(O) self->GetFile()->seekg(self->GetFile()->tellg() + streamSkip1, ios::beg);
(N) self->GetFile()->seekg(static_cast<long>(self->GetFile()->tellg()) + streamSkip1, ios::beg);
Open file vtkImageReader.cxx in your VTK source directory and replace both old lines (O) by the new ones (N):
(O) this->File->seekg((long)streamStart, ios::beg);
(N) this->File->seekg(static_cast<long>(streamStart), ios::beg);
(O) self->GetFile()->seekg(self->GetFile()->tellg() + streamSkip0, ios::beg);
(N) self->GetFile()->seekg(static_cast<long>(self->GetFile()->tellg()) + streamSkip0, ios::beg);
(O) self->GetFile()->seekg(self->GetFile()->tellg() + streamSkip1 + correction,
(N) self->GetFile()->seekg(static_cast<long>(self->GetFile()->tellg()) + streamSkip1 + correction, |