# poll.m4 serial 1
dnl Copyright (c) 2003 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 the program.

AC_DEFUN([gl_FUNC_POLL],
[
  AC_CHECK_HEADERS(poll.h)
  if test x$ac_cv_header_poll_h = xno; then
    AC_CONFIG_LINKS([lib/poll.h:lib/poll_.h])
  fi

  AC_REPLACE_FUNCS(poll)
  if test $ac_cv_func_poll = no; then
    gl_PREREQ_POLL
  fi
])

# Prerequisites of lib/poll.c.
AC_DEFUN([gl_PREREQ_POLL],
[
  AC_REQUIRE([AC_HEADER_TIME])
  AC_CHECK_HEADERS_ONCE(sys/time.h)
])