# poll.m4 serial 2 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 "$ac_cv_header_poll_h" = no; then POLL_H=poll.h else POLL_H= fi AC_SUBST([POLL_H]) 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) ])