$OpenBSD: patch-configure_in,v 1.6 2013/01/19 08:42:35 brad Exp $
--- configure.in.orig	Sat Nov 19 11:50:27 2011
+++ configure.in	Fri Jan 18 02:01:12 2013
@@ -721,6 +721,12 @@ TC_CHECK_SUNAU(AC_DEFINE([HAVE_SUNAU], 1, [Have Sun st
 AM_CONDITIONAL(HAVE_SUNAU, test x"$have_sunau" = x"yes")
 
 dnl
+dnl sndio
+dnl
+TC_CHECK_SNDIO(AC_DEFINE([HAVE_SNDIO], 1, [Have sndio(7) audio]))
+AM_CONDITIONAL(HAVE_SNDIO, test x"$have_sndio" = x"yes")
+
+dnl
 dnl OSS
 dnl
 TC_CHECK_OSS(AC_DEFINE([HAVE_OSS], 1, [Have OSS audio]))
@@ -1406,6 +1412,7 @@ ALSA                           $have_alsa
 OSS                            $have_oss
 bktr                           $have_bktr
 sunau                          $have_sunau
+sndio                          $have_sndio
 
 optional module support
 ----------------------------------------
