[Bug bootstrap/15581] build a new version gcc failure

[psho at hko dot gov dot hk]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   GCC host triplet|                            |IBM AIX P630
 GCC target triplet|                            |IBM AIX P630


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15581