http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52887
--- Comment #15 from Daniel Richard G. <skunk at iskunk dot org> 2012-06-20 04:10:28 UTC --- David, thank you for commenting; I have a better appreciation now of how AIX is a different animal from most, and indeed may be doing things more correctly than other systems on this one point. I'd also like to bring attention to a seemingly similar issue I've encountered when bootstrapping on AIX 4.3: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53238#c11 That one is less straightforward, however, because (as reported a couple comments further down) it only occurs when bootstrapping. If I build GCC with a C-only GCC of the same version and --disable-bootstrap, there's no error.