http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32039
--- Comment #3 from fabien at gcc dot gnu.org --- (In reply to Eelis from comment #1) > Still accepted by 4.4. Comeau concurs with reporter, and rejects saying: > > line 15: error: class member designated by a > using-declaration must be visible in a direct base class Which seems wrong according to the standard quoted above. >From Clang results and the analysis done in bug 19377, I am inclined to close this bug as invalid.