mirror of
https://github.com/projectM-visualizer/projectm.git
synced 2026-03-09 17:05:14 +00:00
51 lines
1.5 KiB
Plaintext
Executable File
51 lines
1.5 KiB
Plaintext
Executable File
# ===========================================================================
|
|
# https://www.gnu.org/software/autoconf-archive/ax_sys_dev_poll.html
|
|
# ===========================================================================
|
|
#
|
|
# SYNOPSIS
|
|
#
|
|
# AX_SYS_DEV_POLL([ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
|
|
#
|
|
# DESCRIPTION
|
|
#
|
|
# This macro tests for the presence of /dev/poll support in the build
|
|
# environment. It checks that the needed structure (dvpoll) is available,
|
|
# with the standard fields. /dev/poll is most often seen under Solaris.
|
|
#
|
|
# Note that it does not attempt to actually open /dev/poll -- you should
|
|
# test for errors when you open it and then fall back to poll() if it is
|
|
# unavailable.
|
|
#
|
|
# LICENSE
|
|
#
|
|
# Copyright (c) 2008 Dave Benson <daveb@ffem.org>
|
|
#
|
|
# Copying and distribution of this file, with or without modification, are
|
|
# permitted in any medium without royalty provided the copyright notice
|
|
# and this notice are preserved. This file is offered as-is, without any
|
|
# warranty.
|
|
|
|
#serial 6
|
|
|
|
AU_ALIAS([AC_SYS_DEV_POLL], [AX_SYS_DEV_POLL])
|
|
AC_DEFUN([AX_SYS_DEV_POLL], [AC_CACHE_CHECK(for /dev/poll support, ac_cv_dev_poll,
|
|
AC_TRY_COMPILE([#include <sys/ioctl.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <sys/poll.h>
|
|
#include <sys/devpoll.h>],
|
|
[
|
|
struct dvpoll p;
|
|
p.dp_timeout = 0;
|
|
p.dp_nfds = 0;
|
|
p.dp_fds = (struct pollfd *) 0;
|
|
return 0;
|
|
],
|
|
ac_cv_dev_poll=yes
|
|
[$1],
|
|
ac_cv_dev_poll=no
|
|
[$2]
|
|
)
|
|
)
|
|
])
|