Update from Gnulib

This incorporates:
2019-06-04 copy-file-range: new module
2019-05-28 binaty-io: O_BINARY on consoles no longer fails
* doc/misc/texinfo.tex, lib/binary-io.c, lib/binary-io.h:
* lib/unistd.in.h, m4/unistd_h.m4: Copy from Gnulib.
* lib/gnulib.mk.in: Regenerate.

1 files changed, 9 insertions, 7 deletions

diff --git a/lib/binary-io.c b/lib/binary-io.c
index 01e0bf64765..77490e68e3b 100644
--- a/lib/binary-io.c
+++ b/lib/binary-io.c
@@ -20,18 +20,20 @@
 #include "binary-io.h"
 
 #if defined __DJGPP__ || defined __EMX__
-# include <errno.h>
 # include <unistd.h>
 
 int
-__gl_setmode_check (int fd)
+set_binary_mode (int fd, int mode)
 {
   if (isatty (fd))
-    {
-      errno = EINVAL;
-      return -1;
-    }
+    /* If FD refers to a console (not a pipe, not a regular file),
+       O_TEXT is the only reasonable mode, both on input and on output.
+       Silently ignore the request.  If we were to return -1 here,
+       all programs that use xset_binary_mode would fail when run
+       with console input or console output.  */
+    return O_TEXT;
   else
-    return 0;
+    return __gl_setmode (fd, mode);
 }
+
 #endif