X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Funistd-safer.m4;h=d11da00941669a8ab2f72f859571bb1b9d356148;hb=cea318a913148d825c03a4e45f4553e4cb4e2880;hp=282e6579ecaee8890099d6f75c8d64c7901cc944;hpb=44d7c1c1f004fa9bfb8ec3948de2671a7958cf5b;p=gnulib.git

diff --git a/m4/unistd-safer.m4 b/m4/unistd-safer.m4
index 282e6579e..d11da0094 100644
--- a/m4/unistd-safer.m4
+++ b/m4/unistd-safer.m4
@@ -1,15 +1,10 @@
-# unistd-safer.m4 serial 2
-dnl Copyright (C) 2002 Free Software Foundation, Inc.
+#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])
 ])