$OpenBSD: patch-configure_in,v 1.4 2014/09/13 04:56:28 bentley Exp $
--- configure.in.orig	2016-06-22 08:28:31 UTC
+++ configure.in
@@ -24,6 +24,10 @@ AC_ARG_WITH(alsa,
             AS_HELP_STRING([--with-alsa], [Enable support for ALSA @<:@autodetect@:>@]),
             [with_alsa=$withval])
 
+AC_ARG_WITH(sndio,
+            AS_HELP_STRING([--with-sndio], [Enable support for sndio @<:@autodetect@:>@]),
+            [with_sndio=$withval])
+
 AC_ARG_WITH(jack,
             AS_HELP_STRING([--with-jack], [Enable support for JACK @<:@autodetect@:>@]),
             [with_jack=$withval])
@@ -120,6 +124,10 @@ have_alsa=no
 if test "x$with_alsa" != "xno"; then
     AC_CHECK_LIB(asound, snd_pcm_open, have_alsa=yes, have_alsa=no)
 fi
+have_sndio=no
+if test "x$with_sndio" != "xno"; then
+    AC_CHECK_LIB(sndio, sio_open, have_sndio=yes, have_sndio=no)
+fi
 have_asihpi=no
 if test "x$with_asihpi" != "xno"; then
     AC_CHECK_LIB(hpi, HPI_SubSysCreate, have_asihpi=yes, have_asihpi=no, -lm)
@@ -397,6 +405,13 @@ case "${host_os}" in
            AC_DEFINE(PA_USE_ALSA,1)
         fi
 
+        if [[ "$have_sndio" = "yes" -a "$with_sndio" != "no" ]] ; then
+           DLL_LIBS="$DLL_LIBS -lsndio"
+           LIBS="$LIBS -lsndio"
+           OTHER_OBJS="$OTHER_OBJS src/hostapi/sndio/pa_sndio.o"
+           AC_DEFINE(PA_USE_SNDIO,1)
+        fi
+
         if [[ "$have_jack" = "yes" ] && [ "$with_jack" != "no" ]] ; then
            DLL_LIBS="$DLL_LIBS $JACK_LIBS"
            CFLAGS="$CFLAGS $JACK_CFLAGS"
@@ -500,6 +515,7 @@ case "$target_os" in
         ;;
      *)
 	AC_MSG_RESULT([
+  Sndio ....................... $have_sndio
   OSS ......................... $have_oss
   JACK ........................ $have_jack
 ])