Hello, With recent C++11-ification of Ceph codebase, there's been (silent) compiler requirement change, in particular: GCC 4.4.7 is not enough to build Ceph from master branch, and recent commits made even GCC 4.7 obsolete, requiring GCC 4.8. That is not noted anywhere. Maybe it's a good idea to note this somewhere? This is particularly painful for some LTS distros, like CentOS 6, which come shipped with GCC 4.4.7 and require installation of at least DevToolset 2 to build Ceph successfully. With best regards / Pozdrawiam Piotr Dałek ��.n��������+%������w��{.n����z��u���ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f