http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48169
--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-03-17 16:19:07 UTC --- See the link in comment 5, or this one: http://clang.llvm.org/compatibility.html#dep_lookup_bases or this one: http://www.parashift.com/c++-faq/templates.html#faq-35.19
