http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47017
--- Comment #1 from Laurent GUERBY <laurent at guerby dot net> 2010-12-23 10:27:54 UTC --- on sparc32-linux (--with-cpu=v8) bootstrap and gnatlib work fine: http://gcc.gnu.org/ml/gcc-testresults/2010-12/msg02070.html So this is a 64 bits issue.