http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51785
--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-28 15:49:26 UTC --- I'm ok with #c3 patch + comment if it works, using special configure macro instead of __GLIBC_PREREQ is IMHO undesirable, because then if you build gcc against glibc 2.14 and afterwards upgrade glibc to 2.15, it will suddenly break.
