$NetBSD: patch-aa,v 1.4 2012/04/17 17:40:50 joerg Exp $

--- src/backends/alc_backend_bsd.c.orig	2006-01-05 15:11:20.000000000 +0000
+++ src/backends/alc_backend_bsd.c
@@ -9,15 +9,27 @@
  */
 #include "al_siteconfig.h"
 
+#ifdef __NetBSD__
+#define _NETBSD_SOURCE
+#endif
+
 #include <AL/al.h>
+#include <AL/alext.h>
 #include <assert.h>
 #include <fcntl.h>
+#if defined(__FreeBSD__)
+#include <machine/soundcard.h>
+#elif defined(__NetBSD__) || defined(__OpenBSD__)
+#include <soundcard.h>
+#else
 #include <sys/soundcard.h>
+#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/ioctl.h>
 #include <sys/mman.h>
+#include <sys/select.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <sys/types.h>
@@ -210,7 +222,11 @@ void release_native(void *handle) {
 
 	handle_fd = *(int *) handle;
 
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+	if(ioctl(handle_fd, SNDCTL_DSP_RESET, NULL) < 0) {
+#else
 	if(ioctl(handle_fd, SNDCTL_DSP_RESET) < 0) {
+#endif
 #ifdef DEBUG_MAXIMUS
 		fprintf(stderr, "Couldn't reset dsp\n");
 #endif
@@ -385,7 +401,7 @@ alcBackendSetAttributesNative_(ALC_OpenM
 static void *grab_read_native(void)
 {
 	fprintf(stderr,"grab_read_native Not implemented! (%s:%d)\n",__FILE__,__LINE__);
-	return;
+	return NULL;
 }
 
 void *