view m4/pipe2.m4 @ 12559:c2cbabec01dd

update nearly all FSF copyright year lists to include 2010 Use the same procedure as for 2009, outlined in http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/20081
author Jim Meyering <meyering@redhat.com>
date Fri, 01 Jan 2010 10:31:12 +0100
parents 476cefda5290
children 97fc9a21a8fb
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# pipe2.m4 serial 2
dnl Copyright (C) 2009, 2010 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_FUNC_PIPE2],
[
  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])

  dnl Persuade glibc <unistd.h> to declare pipe2().
  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])

  AC_CHECK_FUNCS_ONCE([pipe2])
  if test $ac_cv_func_pipe2 != yes; then
    HAVE_PIPE2=0
  fi
])