http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48392
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-03-31 17:15:21 UTC --- you need to install the 32bit glibc headers and libraries if you want to compile for 32bit
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48392
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-03-31 17:15:21 UTC --- you need to install the 32bit glibc headers and libraries if you want to compile for 32bit