Subject: Re: bug#64773: grep 3.11 -r on 100000+ files fails with "Operation not supported"

From: Paul Eggert <[email-masked]>
Date: Fri, 21 Jul 2023 16:37:22 -0700

To fix just this bug (as opposed to the other Gnulib-related bugs that 
may be lurking) try applying the attached Gnulib patch to a grep 3.11 
tarball.

Closing the debbugs.gnu.org bug report, as the bug has been fixed upstream.

From d4d8abb39eb02c555f062b1f83ffcfac999c582f Mon Sep 17 00:00:00 2001
From: Bruno Haible <[email-masked]>
Date: Fri, 5 May 2023 12:02:49 +0200
Subject: [PATCH] dirfd: Fix bogus override (regression 2023-04-26).

Reported by Bjarni Ingi Gislason <[email-masked]> in
<https://lists.gnu.org/archive/html/bug-gnulib/2023-05/msg00040.html>.

* m4/dirfd.m4 (gl_FUNC_DIRFD): Fix mistake in last change.
---
 ChangeLog   | 7 +++++++
 m4/dirfd.m4 | 6 +-----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index aaffe12fc1..5f01a52535 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2023-05-05  Bruno Haible  <[email-masked]>
+
+	dirfd: Fix bogus override (regression 2023-04-26).
+	Reported by Bjarni Ingi Gislason <[email-masked]> in
+	<https://lists.gnu.org/archive/html/bug-gnulib/2023-05/msg00040.html>.
+	* m4/dirfd.m4 (gl_FUNC_DIRFD): Fix mistake in last change.
+
 2023-05-04  Bruno Haible  <[email-masked]>
 
 	c32swidth: Add tests.
diff --git a/m4/dirfd.m4 b/m4/dirfd.m4
index d1ee2c7f61..7968b1287c 100644
--- a/m4/dirfd.m4
+++ b/m4/dirfd.m4
@@ -1,4 +1,4 @@
-# serial 27   -*- Autoconf -*-
+# serial 28   -*- Autoconf -*-
 
 dnl Find out how to get the file descriptor associated with an open DIR*.
 
@@ -40,10 +40,6 @@ AC_DEFUN([gl_FUNC_DIRFD],
     HAVE_DIRFD=0
   else
     HAVE_DIRFD=1
-    dnl Replace only if the system declares dirfd already.
-    if test $ac_cv_have_decl_dirfd = yes; then
-      REPLACE_DIRFD=1
-    fi
     dnl Replace dirfd() on native Windows, to support fdopendir().
     AC_REQUIRE([gl_DIRENT_DIR])
     if test $DIR_HAS_FD_MEMBER = 0; then
-- 
2.39.2