remove autoconf-2.57 work-around requiring AC_PROG_EGREP and AC_PROG_CPP

[gnulib.git] / m4 / dirfd.m4

diff --git a/m4/dirfd.m4 b/m4/dirfd.m4
index 48b7bae..bfddeb9 100644 (file)
--- a/m4/dirfd.m4
+++ b/m4/dirfd.m4
@@ -1,4 +1,4 @@
-# serial 18   -*- Autoconf -*-
+# serial 19   -*- Autoconf -*-
 
 dnl Find out how to get the file descriptor associated with an open DIR*.
 
@@ -17,10 +17,6 @@ AC_DEFUN([gl_FUNC_DIRFD],
   dnl Persuade glibc <dirent.h> to declare dirfd().
   AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 
-  dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57.
-  AC_REQUIRE([AC_PROG_CPP])
-  AC_REQUIRE([AC_PROG_EGREP])
-
   AC_CHECK_FUNCS([dirfd])
   AC_CHECK_DECLS([dirfd], , ,
     [#include <sys/types.h>