https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61359
--- Comment #7 from Larkin Nickle <me at larbob dot org> --- For anyone finding this in the future, I'm guessing 32-bit builds of GCC on HP-UX+PA-RISC were just broken for a while. Building 5.5.0 with libquadmath enabled worked fine.