http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61026
--- Comment #9 from Jan-Benedict Glaw <jbg...@lug-owl.de> --- > Could you please try to add an > > #include <unistd.h> > > before the C++ includes and see if it resolves some of the errors/changes > anything? It's probably not going to be the final fix for the problem, but > might give some clues. I've added it there, though it might take a while until that target is built again on that host. (Just for the notes: The host is AIX 7 on PPC, using GCC, thus it's not the somewhat more usual Linux-based building...)