--- configure.orig	2018-05-02 14:46:09.900968269 +0200
+++ configure	2018-05-02 14:46:30.935113630 +0200
@@ -20,12 +20,8 @@
 
 check_sndio()
 {
-	case `uname -s` in
-	OpenBSD)
-		check_library SNDIO "" "-lsndio"
-		return $?
-	esac
-	return 1
+	check_library SNDIO "" "-lsndio"
+	return $?
 }
 
 check_compat()
--- sndio.c.orig	2018-05-02 14:52:24.031553732 +0200
+++ sndio.c	2018-05-02 14:52:32.410611635 +0200
@@ -20,7 +20,6 @@
 
 #include <sys/types.h>
 #include <sys/ioctl.h>
-#include <sys/audioio.h>
 #include <sys/stat.h>
 #include <errno.h>
 #include <fcntl.h>