I forgot it need to compile on Windows--sorry for the noise.
> Carsten Kunze <carsten.ku...@arcor.de> hat am 21. Oktober 2020 um 21:23
> geschrieben:
>
>
> How about at first using pathconf(3) with the constant _PC_NAME_MAX to
> determine the file name length (for a specfific path) and using the constants
> only when pathconf returns -1?
>
> > Ingo Schwarze <invalid.nore...@gnu.org> hat am 21. Oktober 2020 um 18:43
> > geschrieben:
> >
> >
> > Update of bug #55449 (project groff):
> >
> > Assigned to: None => schwarze
> > Planned Release: None => 1.23
> >
> > _______________________________________________________
> >
> > Follow-up Comment #4:
> >
> > The patch #45943 is not correct.
> >
> > According to the comment at the top of src/libs/libgroff/maxfilename.cpp,
> > what
> > the function file_name_max() wants to return is NAME_MAX.
> >
> > If a system defines both NAME_MAX and FILENAME_MAX - which all system ought
> > to
> > do because POSIX requires both - then the patch clobbers NAME_MAX with
> > FILENAME_MAX. On some systems, both have different values.
> >
> > I also suggest to use a more readable idiom avoiding nested #ifs, see the
> > attached patch 55449-schwarze.patch.
> >
> > Also, use FILENAME_MAX only as a last-resort fallback. It is not clear to
> > me
> > that FILENAME_MAX has exactly the same meaning as NAME_MAX. On some
> > systems,
> > FILENAME_MAX is much larger than NAME_MAX, so using it does not seem
> > perfectly
> > safe. Then again, when nothing else is available, maybe it is still better
> > than 14.
> >
> > Eli, can you test whether this version works for you, too?
> >
> > (file #50036)
> > _______________________________________________________
> >
> > Additional Item Attachment:
> >
> > File name: 55449-schwarze.patch Size:1 KB
> > <https://file.savannah.gnu.org/file/55449-schwarze.patch?file_id=50036>
> >
> >
> >
> > _______________________________________________________
> >
> > Reply to this item at:
> >
> > <https://savannah.gnu.org/bugs/?55449>
> >
> > _______________________________________________
> > Message sent via Savannah
> > https://savannah.gnu.org/
> >
> >
>