From a8f272fc4ee01baf0dbee58f23c5a12a5a992a09 Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Thu, 23 Jan 2003 17:55:17 +0000
Subject: (UTILS_FUNC_DIRFD): Invoke some AC_EGREP_CPP requirements.

---
 m4/dirfd.m4 | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/m4/dirfd.m4 b/m4/dirfd.m4
index 26ebdd65f..0e1090ed2 100644
--- a/m4/dirfd.m4
+++ b/m4/dirfd.m4
@@ -1,10 +1,14 @@
-#serial 2
+#serial 4
 
 dnl Find out how to get the file descriptor associated with an open DIR*.
 dnl From Jim Meyering
 
 AC_DEFUN([UTILS_FUNC_DIRFD],
 [
+  dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57.
+  AC_REQUIRE([AC_PROG_CPP])
+  AC_REQUIRE([AC_PROG_EGREP])
+
   AC_HEADER_DIRENT
   dirfd_headers='
 #if HAVE_DIRENT_H
-- 
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