X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=inline;f=m4%2Funistd-safer.m4;h=00ff1bd4fe31b99dcd819006680dad4e64d4f2e1;hb=24115a1330bc3267b541240a5d354855b28bc474;hp=a1dc2b753b61ada88d71ae95b7c5c8c261071c39;hpb=e74d04a8682cb37afd40f7f7d55580e3e97b48ce;p=gnulib.git

diff --git a/m4/unistd-safer.m4 b/m4/unistd-safer.m4
index a1dc2b753..00ff1bd4f 100644
--- a/m4/unistd-safer.m4
+++ b/m4/unistd-safer.m4
@@ -1,25 +1,13 @@
-#serial 4
-dnl Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+#serial 8
+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],
 [
-  AC_LIBSOURCES([dup-safer.c, fd-safer.c, unistd-safer.h])
+  AC_CHECK_FUNCS_ONCE([pipe])
   AC_LIBOBJ([dup-safer])
   AC_LIBOBJ([fd-safer])
-
-  gl_PREREQ_DUP_SAFER
-  gl_PREREQ_FD_SAFER
-])
-
-# Prerequisites of lib/dup-safer.c.
-AC_DEFUN([gl_PREREQ_DUP_SAFER], [
-  AC_CHECK_HEADERS_ONCE(unistd.h)
-])
-
-# Prerequisites of lib/fd-safer.c.
-AC_DEFUN([gl_PREREQ_FD_SAFER], [
-  AC_CHECK_HEADERS_ONCE(unistd.h)
+  AC_LIBOBJ([pipe-safer])
 ])