-# poll.m4 serial 6
-dnl Copyright (c) 2003, 2005, 2006 Free Software Foundation, Inc.
+# poll.m4 serial 9
+dnl Copyright (c) 2003, 2005, 2006, 2007, 2009, 2010 Free Software Foundation,
+dnl 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_POLL],
[
- AC_CHECK_HEADERS(poll.h)
+ AC_CHECK_HEADERS([poll.h])
if test "$ac_cv_header_poll_h" = no; then
gl_cv_func_poll=no
else
- AC_CHECK_FUNC(poll,
+ AC_CHECK_FUNC([poll],
[# Check whether poll() works on special files (like /dev/null) and
# and ttys (like /dev/tty). On MacOS X 10.4.0 and AIX 5.3, it doesn't.
- AC_TRY_RUN([
+ AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <fcntl.h>
#include <poll.h>
int main()
return 1;
/* Trying /dev/tty may be too environment dependent. */
return 0;
- }],
+ }]])],
[gl_cv_func_poll=yes],
[gl_cv_func_poll=no],
[# When cross-compiling, assume that poll() works everywhere except on
], [gl_cv_func_poll=no], [gl_cv_func_poll=yes])])])
fi
if test $gl_cv_func_poll = yes; then
- AC_DEFINE([HAVE_POLL], 1,
+ AC_DEFINE([HAVE_POLL], [1],
[Define to 1 if you have the 'poll' function and it works.])
POLL_H=
else
- AC_LIBOBJ(poll)
- AC_DEFINE(poll, rpl_poll,
+ AC_LIBOBJ([poll])
+ AC_DEFINE([poll], [rpl_poll],
[Define to poll if the replacement function should be used.])
gl_PREREQ_POLL
POLL_H=poll.h
# Prerequisites of lib/poll.c.
AC_DEFUN([gl_PREREQ_POLL],
[
- AC_REQUIRE([AC_HEADER_TIME])
- AC_CHECK_HEADERS_ONCE(sys/time.h)
+ AC_CHECK_HEADERS_ONCE([sys/ioctl.h sys/filio.h])
])