https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68356
--- Comment #8 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > You might want to double check that it's not a bug in the HP-UX libm. AFAIU Joseph (comment 2) the test should be skipped on platforms defaulting to -fno-math-errno as Darwin. Is it the case for HP-UX?