http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53348
--- Comment #4 from Daniel Richard G. <skunk at iskunk dot org> 2012-05-15 17:35:20 UTC --- (In reply to comment #3) > 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. So if I understand correctly: GCC may still nominally support AIX 4.3, but no one here really wants to spend time dealing with it. If that's the case, could you set these PRs to WAITING/IN_PROGRESS, and assign them to me? I'll gladly try my hand at some patches, as long as someone here is willing to review them and get them in if they're good. I was under the impression that fast-integer types could be N bits or more in size, so e.g. "typedef int32_t int_fast16_t" would be valid (and may make sense for the architecture). So you're saying that's not it, and sys/inttypes.h needs fixincluding?