http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50258
--- Comment #11 from Carlos Becker <bsys.com.ar at gmail dot com> 2011-09-29 19:27:39 UTC --- Thanks for the quick reply. I understand the implications of having a compiler flag for each deprecated feature, but that would be the best option from the developer's point of view (and obviously not so much from the gcc developer side). In my case I guess that I will have to patch the headers of the libraries I am using with something like const -> constexpr in the places where I get those errors. -fpermissive is too broad for my taste. Anyhow I will keep track on this particular 'bug'. Whatever choice is made, it will be important in order to use c++11/0x with older code.