http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61144
--- Comment #8 from Rich Felker <bugdal at aerifal dot cx> --- Further investigation suggests that the real gcc 4.8.2 is not affected; I was mislead by the fact that Debian is shipping as "gcc-4.8_4.8.2-21" an svn snapshot that's actually post-4.8.2. So 4.9.0 seems to be the only official release that's affected.