I've spent hours debugging this - it is definitely mingw/mingw-w64 specific. I don't really understand what's going on, but it appears that this is the same issue as http://lists.gnu.org/archive/html/bug-gnulib/2009-01/msg00370.html . I see that you committed http://lists.gnu.org/archive/html/bug-gnulib/2010-09/msg00230.html a while ago, but there are still uses of dirfd which always returns -1 for mingw.
Figuring out how to make this work is far beyond my area of expertise (if this involved crazy C++ templates I'd be right at home). I know mingw is a second-class citizen, but if you or someone else who understands what gnulib is doing here could investigate, that would be wonderful for everyone on Windows who uses grep. Thanks, STL -----Original Message----- From: Paul Eggert [mailto:egg...@cs.ucla.edu] Sent: Tuesday, January 14, 2014 9:01 AM To: Stephan T. Lavavej; 16...@debbugs.gnu.org Subject: Re: bug#16444: grep -r fails with "Bad file descriptor" for mingw-w64 Stephan T. Lavavej wrote: > I don't believe > this is specific to mingw-w64. Quite possibly it's specific to mingw, though. Mingw is low priority for us, but if someone like you with the motivation and experience can come up with a patch (ideally a patch to mingw), that might be nice.
