--- a/src/sound.cpp	Thu Apr 19 14:48:10 2007 +0000
+++ b/src/sound.cpp	Tue Jun 12 11:56:35 2007 +0000
@@ -1,8 +1,11 @@
 /* $Id$ */
 
+/** @file sound.cpp */
+
 #include "stdafx.h"
 #include "openttd.h"
 #include "functions.h"
+#include "landscape.h"
 #include "map.h"
 #include "mixer.h"
 #include "sound.h"
@@ -51,12 +54,12 @@
 
 		FioSeekTo(fe->file_offset, SEEK_SET);
 
-		// Check for special case, see else case
+		/* Check for special case, see else case */
 		FioReadBlock(name, FioReadByte()); // Read the name of the sound
 		if (strcmp(name, "Corrupt sound") != 0) {
 			FioSeekTo(12, SEEK_CUR); // Skip past RIFF header
 
-			// Read riff tags
+			/* Read riff tags */
 			for (;;) {
 				uint32 tag = FioReadDword();
 				uint32 size = FioReadDword();
@@ -130,7 +133,7 @@
 	return true;
 }
 
-// Low level sound player
+/* Low level sound player */
 static void StartSound(uint sound, int panning, uint volume)
 {
 	MixerChannel *mc;