http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53433
--- Comment #11 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-06-01 11:44:57 UTC --- Just a shot into the dark: The only difference between glibc-2.12 and later in this area is the introduction of SSE4.2 (SSSE3) support...