http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53348
David Edelsohn <dje at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |WONTFIX --- Comment #3 from David Edelsohn <dje at gcc dot gnu.org> 2012-05-15 13:45:38 UTC --- AIX 4.3.2 was announced in 1998 and end of service in 2003. The AIX header is wrong and was fixed in later versions. You have a work-around. I am not aware of anyone else trying to use recent versions of GCC on ancient versions of AIX. Customers who continue to use an old version generally freeze all software on the system. Patches are welcome.