http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59335
--- Comment #12 from PaX Team <pageexec at gmail dot com> --- two more headers not installed (even by older gcc versions so a backport to at least 4.8/4.7 would be nice) but they're needed for an rtl pass to be able to make use of the df info: df.h regset.h
