The gcc-4.8 SRU in trusty from 4.8.2-19ubuntu1 -> 4.8.4-2ubuntu1~14.04 has introduced this regression, causing mysql-5.6 to now FTBFS. I've confirmed that this bug also persists in gcc-4.8 in wily today (4.8.4-3ubuntu1).
The gcc-4.8 SRU in trusty from 4.8.2-19ubuntu1 -> 4.8.4-2ubuntu1~ 14.04 has introduced this regression, causing mysql-5.6 to now FTBFS. I've confirmed that this bug also persists in gcc-4.8 in wily today (4.8.4-3ubuntu1).