X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Funistd-safer.m4;h=d11da00941669a8ab2f72f859571bb1b9d356148;hb=a34348c397c19cfb1526fab594f720c7011bc790;hp=894fb715480bbdfac2cd2c5c58c0bb315aff3163;hpb=53b8fa05726a7fb30010e42ce02e44a35f0d7489;p=gnulib.git

diff --git a/m4/unistd-safer.m4 b/m4/unistd-safer.m4
index 894fb7154..d11da0094 100644
--- a/m4/unistd-safer.m4
+++ b/m4/unistd-safer.m4
@@ -1,17 +1,10 @@
-# unistd-safer.m4 serial 1
-dnl Copyright (C) 2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+#serial 9
+dnl Copyright (C) 2002, 2005-2006, 2009-2011 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_UNISTD_SAFER],
 [
-  gl_PREREQ_DUP_SAFER
-])
-
-# Prerequisites of lib/dup-safer.c.
-AC_DEFUN([gl_PREREQ_DUP_SAFER], [
-  AC_CHECK_HEADERS_ONCE(fcntl.h unistd.h)
+  AC_CHECK_FUNCS_ONCE([pipe])
 ])