https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61577
--- Comment #78 from The Written Word <bugzilla-gcc at thewrittenword dot com> --- (In reply to dave.anglin from comment #77) > > I think you need to define _XOPEN_SOURCE_EXTENDED. See for example > config/pa/pa-hpux11.h. Yep. I forgot about PR66319.