fix for new select() behavior in FreeBSD-current.

(change made on 97dec)

comment from Lars follows:
	Included is an updated patch-ab file for hylafax for current that
	fixes the busywait that occurred once the fifo_poll() fix went into
	the kernel in December.

	The symptoms were that faxqetty and faxq would chew up an inordinate
	amount of time waiting for input form their FIFOS. Basically the
	kernel fix was to make select() return a 1 on EOF (in accordance
	with POSIX) and for read() to keep returning 0 on EOF (which is
	the state you are in if you open the fifo for reading in non-blocking
	mode and there are no writers).

Reviewed by:	asami
Submitted by:	Lars Fredriksen <lars@fredriks-1.pr.mcs.net>

comms/hylafax/files/patch-ab

@@ -1,9 +1,12 @@
---- ./configure.org	Tue Nov 26 15:20:17 1996
-+++ ./configure	Wed May 28 21:55:16 1997
-@@ -1,1 +1,1 @@
+--- configure.orig	Wed Nov 27 08:20:17 1996
++++ configure	Mon Feb  2 10:21:51 1998
+@@ -1,4 +1,4 @@
 -#!/bin/sh
 +#!/usr/local/bin/bash
-@@ -239,7 +241,7 @@
+ #	$Id: configure,v 1.401 1996/11/23 17:28:45 sam Rel $
+ #
+ # HylaFAX Facsimile Software
+@@ -239,7 +239,7 @@
  test -d /usr/ucb && PATH=$PATH:/usr/ucb			# Sun and others
  test -d /usr/contrib/bin && PATH=$PATH:/usr/contrib/bin	# BSDi
  test -d /usr/5bin && PATH=/usr/5bin:$PATH:/usr/etc	# Sun and others
@@ -12,7 +15,20 @@
  PATH=$PATH:$OPATH
  
  POSIXLY_CORRECT=1; export POSIXLY_CORRECT		# disable GNU extensions
-@@ -3928,7 +3930,8 @@
+@@ -1662,6 +1662,12 @@
+ 			    CONFIG_OPENFIFO=O_RDONLY;
+ 			fi
+ 			;;
++	*-freebsd*)	if releaseAtLeast 3.0; then
++			    CONFIG_OPENFIFO=O_RDWR;
++			else
++			    CONFIG_OPENFIFO=O_RDONLY;
++			fi
++ 			;;
+ 	*)		CONFIG_OPENFIFO=O_RDONLY;;
+ 	esac
+     }
+@@ -3928,7 +3934,8 @@
  	printConfig
  	checkForExecutable $PATH_SENDMAIL
  	checkForExecutable $PATH_GETTY