diff --git a/src/android/i_sound.c b/src/android/i_sound.c
index ecf96f2f..77f8e6a5 100644
--- a/src/android/i_sound.c
+++ b/src/android/i_sound.c
@@ -21,13 +21,14 @@ void I_ShutdownSound(void){}
 //  SFX I/O
 //
 
-INT32 I_StartSound(sfxenum_t id, INT32 vol, INT32 sep, INT32 pitch, INT32 priority)
+INT32 I_StartSound(sfxenum_t id, INT32 vol, INT32 sep, INT32 pitch, INT32 priority, INT32 channel)
 {
         (void)id;
         (void)vol;
         (void)sep;
         (void)pitch;
         (void)priority;
+        (void)channel;
         return -1;
 }
 
diff --git a/src/d_clisrv.c b/src/d_clisrv.c
index df8487f2..0c2a92e5 100644
--- a/src/d_clisrv.c
+++ b/src/d_clisrv.c
@@ -1568,8 +1568,6 @@ static void CL_LoadReceivedSavegame(void)
 	automapactive = false;
 
 	// load a base level
-	playerdeadview = false;
-
 	if (P_LoadNetGame())
 	{
 		const INT32 actnum = mapheaderinfo[gamemap-1]->actnum;
diff --git a/src/d_main.c b/src/d_main.c
index df339875..f807e307 100644
--- a/src/d_main.c
+++ b/src/d_main.c
@@ -720,7 +720,6 @@ void D_StartTitle(void)
 	maptol = 0;
 
 	gameaction = ga_nothing;
-	playerdeadview = false;
 	displayplayer = consoleplayer = 0;
 	//demosequence = -1;
 	gametype = GT_COOP;
diff --git a/src/d_main.h b/src/d_main.h
index 6dc273b1..d73b19d1 100644
--- a/src/d_main.h
+++ b/src/d_main.h
@@ -34,7 +34,7 @@ void D_SRB2Loop(void) FUNCNORETURN;
 // D_SRB2Main()
 // Not a globally visible function, just included for source reference,
 // calls all startup code, parses command line options.
-// If not overrided by user input, calls N_AdvanceDemo.
+// If not overrided by user input, calls D_AdvanceDemo.
 //
 void D_SRB2Main(void);
 
@@ -51,9 +51,6 @@ const char *D_Home(void);
 //
 // BASE LEVEL
 //
-void D_PageTicker(void);
-// pagename is lumpname of a 320x200 patch to fill the screen
-void D_PageDrawer(const char *pagename);
 void D_AdvanceDemo(void);
 void D_StartTitle(void);
 
diff --git a/src/d_net.c b/src/d_net.c
index 643c41ac..8de5cf08 100644
--- a/src/d_net.c
+++ b/src/d_net.c
@@ -49,7 +49,9 @@ doomcom_t *doomcom = NULL;
 /// \brief network packet data, points inside doomcom
 doomdata_t *netbuffer = NULL;
 
+#ifdef DEBUGFILE
 FILE *debugfile = NULL; // put some net info in a file during the game
+#endif
 
 #define MAXREBOUND 8
 static doomdata_t reboundstore[MAXREBOUND];
diff --git a/src/d_netcmd.h b/src/d_netcmd.h
index d8fae72f..023bbd09 100644
--- a/src/d_netcmd.h
+++ b/src/d_netcmd.h
@@ -212,7 +212,6 @@ void Command_ExitGame_f(void);
 void Command_Retry_f(void);
 void D_GameTypeChanged(INT32 lastgametype); // not a real _OnChange function anymore
 void D_MapChange(INT32 pmapnum, INT32 pgametype, boolean pultmode, boolean presetplayers, INT32 pdelay, boolean pskipprecutscene, boolean pfromlevelselect);
-void ObjectPlace_OnChange(void);
 void ItemFinder_OnChange(void);
 void D_SetPassword(const char *pw);
 
diff --git a/src/djgppdos/i_sound.c b/src/djgppdos/i_sound.c
index 88fc807f..ec6f4412 100644
--- a/src/djgppdos/i_sound.c
+++ b/src/djgppdos/i_sound.c
@@ -165,9 +165,11 @@ INT32 I_StartSound ( sfxenum_t     id,
                    INT32         vol,
                    INT32         sep,
                    INT32         pitch,
-                   INT32         priority )
+                   INT32         priority,
+				   INT32         channel)
 {
 	int voice;
+	(void)channel;
 
 	if (nosound)
 	return 0;
diff --git a/src/doomstat.h b/src/doomstat.h
index 8072a155..341cc70a 100644
--- a/src/doomstat.h
+++ b/src/doomstat.h
@@ -445,19 +445,17 @@ extern mapthing_t *redctfstarts[MAXPLAYERS]; // CTF
 
 #if defined (macintosh)
 #define DEBFILE(msg) I_OutputMsg(msg)
-extern FILE *debugfile;
 #else
 #define DEBUGFILE
 #ifdef DEBUGFILE
 #define DEBFILE(msg) { if (debugfile) { fputs(msg, debugfile); fflush(debugfile); } }
-extern FILE *debugfile;
 #else
 #define DEBFILE(msg) {}
-extern FILE *debugfile;
 #endif
 #endif
 
 #ifdef DEBUGFILE
+extern FILE *debugfile;
 extern INT32 debugload;
 #endif
 
diff --git a/src/dummy/i_sound.c b/src/dummy/i_sound.c
index 51dbb610..143da186 100644
--- a/src/dummy/i_sound.c
+++ b/src/dummy/i_sound.c
@@ -23,13 +23,14 @@ void I_UpdateSound(void){};
 //  SFX I/O
 //
 
-INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority)
+INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority, INT32 channel)
 {
 	(void)id;
 	(void)vol;
 	(void)sep;
 	(void)pitch;
 	(void)priority;
+	(void)channel;
 	return -1;
 }
 
diff --git a/src/f_finale.c b/src/f_finale.c
index a8b27bb8..fb1387c1 100644
--- a/src/f_finale.c
+++ b/src/f_finale.c
@@ -442,7 +442,6 @@ void F_StartIntro(void)
 
 	G_SetGamestate(GS_INTRO);
 	gameaction = ga_nothing;
-	playerdeadview = false;
 	paused = false;
 	CON_ToggleOff();
 	CON_ClearHUD();
@@ -1130,7 +1129,6 @@ void F_StartCredits(void)
 	}
 
 	gameaction = ga_nothing;
-	playerdeadview = false;
 	paused = false;
 	CON_ToggleOff();
 	CON_ClearHUD();
@@ -1277,7 +1275,6 @@ void F_StartGameEvaluation(void)
 		G_SaveGame((UINT32)cursaveslot);
 
 	gameaction = ga_nothing;
-	playerdeadview = false;
 	paused = false;
 	CON_ToggleOff();
 	CON_ClearHUD();
@@ -1388,7 +1385,6 @@ void F_StartGameEnd(void)
 	G_SetGamestate(GS_GAMEEND);
 
 	gameaction = ga_nothing;
-	playerdeadview = false;
 	paused = false;
 	CON_ToggleOff();
 	CON_ClearHUD();
@@ -1591,7 +1587,6 @@ void F_StartContinue(void)
 	gameaction = ga_nothing;
 
 	keypressed = false;
-	playerdeadview = false;
 	paused = false;
 	CON_ToggleOff();
 	CON_ClearHUD();
@@ -1760,7 +1755,6 @@ void F_StartCustomCutscene(INT32 cutscenenum, boolean precutscene, boolean reset
 	G_SetGamestate(GS_CUTSCENE);
 
 	gameaction = ga_nothing;
-	playerdeadview = false;
 	paused = false;
 	CON_ToggleOff();
 
diff --git a/src/g_game.c b/src/g_game.c
index 4f1c49b4..0e8c14f6 100644
--- a/src/g_game.c
+++ b/src/g_game.c
@@ -3616,7 +3616,6 @@ void G_InitNew(UINT8 pultmode, const char *mapname, boolean resetplayer, boolean
 	mapmusflags |= MUSIC_RELOADRESET;
 
 	ultimatemode = pultmode;
-	playerdeadview = false;
 	automapactive = false;
 	imcontinuing = false;
 
diff --git a/src/hardware/hw_bsp.c b/src/hardware/hw_bsp.c
index 17eb8761..a32609fc 100644
--- a/src/hardware/hw_bsp.c
+++ b/src/hardware/hw_bsp.c
@@ -564,8 +564,6 @@ static inline void HWR_SubsecPoly(INT32 num, poly_t *poly)
 	subsector_t *sub;
 	seg_t *lseg;
 
-	sscount++;
-
 	sub = &subsectors[num];
 	count = sub->numlines;
 	lseg = &segs[sub->firstline];
diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index 871a6a49..ecb70a0f 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -3264,7 +3264,6 @@ static void HWR_Subsector(size_t num)
 
 	if (num < numsubsectors)
 	{
-		sscount++;
 		// subsector
 		sub = &subsectors[num];
 		// sector
diff --git a/src/hu_stuff.h b/src/hu_stuff.h
index 7b22f33f..5356ba8a 100644
--- a/src/hu_stuff.h
+++ b/src/hu_stuff.h
@@ -78,9 +78,6 @@ extern boolean chat_on;
 // set true whenever the tab rankings are being shown for any reason
 extern boolean hu_showscores;
 
-// P_DeathThink sets this true to show scores while dead, in multiplayer
-extern boolean playerdeadview;
-
 // init heads up data at game startup.
 void HU_Init(void);
 
diff --git a/src/i_sound.h b/src/i_sound.h
index 084479ee..098c9be1 100644
--- a/src/i_sound.h
+++ b/src/i_sound.h
@@ -64,7 +64,7 @@ void I_ShutdownSound(void);
 
 	\return	sfx handle
 */
-INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority);
+INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority, INT32 channel);
 
 /**	\brief	Stops a sound channel.
 
diff --git a/src/m_anigif.c b/src/m_anigif.c
index 2540665a..e2af7009 100644
--- a/src/m_anigif.c
+++ b/src/m_anigif.c
@@ -492,7 +492,9 @@ static void GIF_framewrite(void)
 
 	// screen regions are handled in GIF_lzw
 	{
-		UINT16 delay = 3; // todo
+		int d1 = (int)((100.0/NEWTICRATE)*(gif_frames+1));
+		int d2 = (int)((100.0/NEWTICRATE)*(gif_frames));
+		UINT16 delay = d1-d2;
 		INT32 startline;
 
 		WRITEMEM(p, gifframe_gchead, 4);
diff --git a/src/nds/i_sound.c b/src/nds/i_sound.c
index 8dea4ad7..a17c7f66 100644
--- a/src/nds/i_sound.c
+++ b/src/nds/i_sound.c
@@ -21,13 +21,14 @@ void I_ShutdownSound(void){}
 //  SFX I/O
 //
 
-INT32 I_StartSound(sfxenum_t id, INT32 vol, INT32 sep, INT32 pitch, INT32 priority)
+INT32 I_StartSound(sfxenum_t id, INT32 vol, INT32 sep, INT32 pitch, INT32 priority, INT32 channel)
 {
 	(void)id;
 	(void)vol;
 	(void)sep;
 	(void)pitch;
 	(void)priority;
+	(void)channel;
 	return -1;
 }
 
diff --git a/src/p_local.h b/src/p_local.h
index 1fd7ada0..b82bcf0e 100644
--- a/src/p_local.h
+++ b/src/p_local.h
@@ -68,7 +68,6 @@
 
 // both the head and tail of the thinker list
 extern thinker_t thinkercap;
-extern INT32 runcount;
 
 void P_InitThinkers(void);
 void P_AddThinker(thinker_t *thinker);
diff --git a/src/p_user.c b/src/p_user.c
index 91b5feb8..11d610a8 100644
--- a/src/p_user.c
+++ b/src/p_user.c
@@ -8654,8 +8654,6 @@ void P_DoPityCheck(player_t *player)
 // P_PlayerThink
 //
 
-boolean playerdeadview; // show match/chaos/tag/capture the flag rankings while in death view
-
 void P_PlayerThink(player_t *player)
 {
 	ticcmd_t *cmd;
@@ -8844,10 +8842,6 @@ void P_PlayerThink(player_t *player)
 	if (player->playerstate == PST_DEAD)
 	{
 		player->mo->flags2 &= ~MF2_SHADOW;
-		// show the multiplayer rankings while dead
-		if (player == &players[displayplayer])
-			playerdeadview = true;
-
 		P_DeathThink(player);
 
 		return;
@@ -8868,9 +8862,6 @@ void P_PlayerThink(player_t *player)
 		player->lives = cv_startinglives.value;
 	}
 
-	if (player == &players[displayplayer])
-		playerdeadview = false;
-
 	if ((gametype == GT_RACE || gametype == GT_COMPETITION) && leveltime < 4*TICRATE)
 	{
 		cmd->buttons &= BT_USE; // Remove all buttons except BT_USE
diff --git a/src/r_main.c b/src/r_main.c
index f2a0c889..d1cd71b3 100644
--- a/src/r_main.c
+++ b/src/r_main.c
@@ -60,7 +60,6 @@ fixed_t projectiony; // aspect ratio
 // just for profiling purposes
 size_t framecount;
 
-size_t sscount;
 size_t loopcount;
 
 fixed_t viewx, viewy, viewz;
@@ -492,9 +491,6 @@ static void R_InitTextureMapping(void)
 	// Take out the fencepost cases from viewangletox.
 	for (i = 0; i < FINEANGLES/2; i++)
 	{
-		t = FixedMul(FINETANGENT(i), focallength);
-		t = centerx - t;
-
 		if (viewangletox[i] == -1)
 			viewangletox[i] = 0;
 		else if (viewangletox[i] == viewwidth+1)
@@ -964,8 +960,6 @@ void R_SkyboxFrame(player_t *player)
 	viewsin = FINESINE(viewangle>>ANGLETOFINESHIFT);
 	viewcos = FINECOSINE(viewangle>>ANGLETOFINESHIFT);
 
-	sscount = 0;
-
 	// recalc necessary stuff for mouseaiming
 	// slopes are already calculated for the full possible view (which is 4*viewheight).
 
@@ -1089,8 +1083,6 @@ void R_SetupFrame(player_t *player, boolean skybox)
 	viewsin = FINESINE(viewangle>>ANGLETOFINESHIFT);
 	viewcos = FINECOSINE(viewangle>>ANGLETOFINESHIFT);
 
-	sscount = 0;
-
 	// recalc necessary stuff for mouseaiming
 	// slopes are already calculated for the full possible view (which is 4*viewheight).
 
diff --git a/src/r_state.h b/src/r_state.h
index 49d0457b..ac3e1fa4 100644
--- a/src/r_state.h
+++ b/src/r_state.h
@@ -108,7 +108,4 @@ extern angle_t rw_normalangle;
 // angle to line origin
 extern angle_t rw_angle1;
 
-// Segs count?
-extern size_t sscount;
-
 #endif
diff --git a/src/s_sound.c b/src/s_sound.c
index 76ee4c64..3b35b36f 100644
--- a/src/s_sound.c
+++ b/src/s_sound.c
@@ -529,7 +529,7 @@ void S_StartSoundAtVolume(const void *origin_p, sfxenum_t sfx_id, INT32 volume)
 
 		// Assigns the handle to one of the channels in the
 		// mix/output buffer.
-		channels[cnum].handle = I_StartSound(sfx_id, volume, sep, pitch, priority);
+		channels[cnum].handle = I_StartSound(sfx_id, volume, sep, pitch, priority, cnum);
 	}
 
 dontplay:
@@ -579,7 +579,7 @@ dontplay:
 
 	// Assigns the handle to one of the channels in the
 	// mix/output buffer.
-	channels[cnum].handle = I_StartSound(sfx_id, volume, sep, pitch, priority);
+	channels[cnum].handle = I_StartSound(sfx_id, volume, sep, pitch, priority, cnum);
 }
 
 void S_StartSound(const void *origin, sfxenum_t sfx_id)
diff --git a/src/sdl/mixer_sound.c b/src/sdl/mixer_sound.c
index cfdb3230..4b4ad3e6 100644
--- a/src/sdl/mixer_sound.c
+++ b/src/sdl/mixer_sound.c
@@ -419,10 +419,10 @@ void I_FreeSfx(sfxinfo_t *sfx)
 	sfx->lumpnum = LUMPERROR;
 }
 
-INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority)
+INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority, INT32 channel)
 {
 	UINT8 volume = (((UINT16)vol + 1) * (UINT16)sfx_volume) / 62; // (256 * 31) / 62 == 127
-	INT32 handle = Mix_PlayChannel(-1, S_sfx[id].data, 0);
+	INT32 handle = Mix_PlayChannel(channel, S_sfx[id].data, 0);
 	Mix_Volume(handle, volume);
 	Mix_SetPanning(handle, min((UINT16)(0xff-sep)<<1, 0xff), min((UINT16)(sep)<<1, 0xff));
 	(void)pitch; // Mixer can't handle pitch
diff --git a/src/sdl/sdl_sound.c b/src/sdl/sdl_sound.c
index 6c70c163..a7c8383a 100644
--- a/src/sdl/sdl_sound.c
+++ b/src/sdl/sdl_sound.c
@@ -604,10 +604,11 @@ void I_FreeSfx(sfxinfo_t * sfx)
 // Pitching (that is, increased speed of playback)
 //  is set, but currently not used by mixing.
 //
-INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority)
+INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority, INT32 channel)
 {
 	(void)priority;
 	(void)pitch;
+	(void)channel;
 
 	if (nosound)
 		return 0;
diff --git a/src/sdl12/mixer_sound.c b/src/sdl12/mixer_sound.c
index 542a6716..daf09ab9 100644
--- a/src/sdl12/mixer_sound.c
+++ b/src/sdl12/mixer_sound.c
@@ -376,10 +376,10 @@ void I_FreeSfx(sfxinfo_t *sfx)
 	sfx->data = NULL;
 }
 
-INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority)
+INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority, INT32 channel)
 {
 	UINT8 volume = (((UINT16)vol + 1) * (UINT16)sfx_volume) / 62; // (256 * 31) / 62 == 127
-	INT32 handle = Mix_PlayChannel(-1, S_sfx[id].data, 0);
+	INT32 handle = Mix_PlayChannel(channel, S_sfx[id].data, 0);
 	Mix_Volume(handle, volume);
 	Mix_SetPanning(handle, min((UINT16)(0xff-sep)<<1, 0xff), min((UINT16)(sep)<<1, 0xff));
 	(void)pitch; // Mixer can't handle pitch
diff --git a/src/sdl12/sdl_sound.c b/src/sdl12/sdl_sound.c
index 6ba83104..01a27153 100644
--- a/src/sdl12/sdl_sound.c
+++ b/src/sdl12/sdl_sound.c
@@ -621,10 +621,11 @@ void I_FreeSfx(sfxinfo_t * sfx)
 // Pitching (that is, increased speed of playback)
 //  is set, but currently not used by mixing.
 //
-INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority)
+INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority, INT32 channel)
 {
 	(void)priority;
 	(void)pitch;
+	(void)channel;
 
 	if (nosound)
 		return 0;
diff --git a/src/win32/win_snd.c b/src/win32/win_snd.c
index 58644457..e50a4737 100644
--- a/src/win32/win_snd.c
+++ b/src/win32/win_snd.c
@@ -353,12 +353,13 @@ void I_FreeSfx(sfxinfo_t *sfx)
 	sfx->data = NULL;
 }
 
-INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority)
+INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority, INT32 channel)
 {
 	FMOD_SOUND *sound;
 	FMOD_CHANNEL *chan;
 	INT32 i;
 	float frequency;
+	(void)channel;
 
 	sound = (FMOD_SOUND *)S_sfx[id].data;
 	I_Assert(sound != NULL);
diff --git a/src/win32ce/win_snd.c b/src/win32ce/win_snd.c
index f9c65217..14ce4add 100644
--- a/src/win32ce/win_snd.c
+++ b/src/win32ce/win_snd.c
@@ -538,7 +538,8 @@ INT32 I_StartSound (sfxenum_t      id,
                   INT32          vol,
                   INT32          sep,
                   INT32          pitch,
-                  INT32          priority)
+                  INT32          priority,
+				  INT32          channel)
 {
 	HRESULT     hr;
 	LPDIRECTSOUNDBUFFER     dsbuffer;
@@ -549,6 +550,7 @@ INT32 I_StartSound (sfxenum_t      id,
 #ifdef SURROUND
 	LPDIRECTSOUNDBUFFER     dssurround;
 #endif
+	(void)channel;
 
 	if (nosound)
 		return -1;