A bunch of stuff:

Cvar_Alias_Get now returns void
cl_pred.c is Tonik's client jumping prediction fix
the rest are adding new aliases: s_volume->volume and sv_edgefriction->edgefriction

common/cvar.c

@@ -79,7 +79,7 @@ cvar_t *Cvar_FindAlias (char *alias_name)
 	return NULL;
 }
 
-cvar_t *Cvar_Alias_Get (char *name, cvar_t *cvar)
+void Cvar_Alias_Get (char *name, cvar_t *cvar)
 {
 	cvar_alias_t	*alias;
 	cvar_t		*var;
@@ -87,12 +87,12 @@ cvar_t *Cvar_Alias_Get (char *name, cvar_t *cvar)
 	if (Cmd_Exists (name))
 	{
 		Con_Printf ("CAlias_Get: %s is a command\n", name);
-		return NULL;
+		return;
 	}
 	if (Cvar_FindVar(name))
 	{
 		Con_Printf ("CAlias_Get: tried to alias used cvar name %s\n",name);
-		return NULL;
+		return;
 	}
 	var = Cvar_FindAlias(name);	
 	if (!var)
@@ -102,9 +102,7 @@ cvar_t *Cvar_Alias_Get (char *name, cvar_t *cvar)
 		calias_vars = alias;
 		alias->name = strdup(name);	
 		alias->cvar = cvar;
-		return alias->cvar;
 	}
-	return var;	
 }
 
 /*

common/cvar.h

@@ -81,7 +81,7 @@ typedef struct cvar_alias_s
 
 cvar_t	*Cvar_Get (char *name, char *value, int cvarflags, char *description);
 
-cvar_t	*Cvar_Alias_Get (char *name, cvar_t *cvar);
+void	Cvar_Alias_Get (char *name, cvar_t *cvar);
 
 void 	Cvar_Set (cvar_t *var, char *value);
 // equivelant to "<name> <variable>" typed at the console

common/snd_dma.c

@@ -192,6 +192,7 @@ void S_Init (void)
 // Always create sound cvars, even with -nosound
 	nosound = Cvar_Get ("nosound","0",CVAR_NONE,"None");
 	volume = Cvar_Get ("volume","0.7",CVAR_ARCHIVE,"None");
+	Cvar_Alias_Get ("s_volume", volume);
 	precache = Cvar_Get ("precache","1",0,"None");
 	loadas8bit = Cvar_Get ("loadas8bit","0",0,"None");
 	bgmvolume = Cvar_Get ("bgmvolume","1",CVAR_ARCHIVE,"None");

qw_client/cl_pred.c

@@ -104,7 +104,7 @@ CL_PredictUsercmd (player_state_t *from, player_state_t *to, usercmd_t *u,
 //for (i=0 ; i<3 ; i++)
 //pmove.origin[i] = ((int)(pmove.origin[i]*8))*0.125;
 	to->waterjumptime = pmove.waterjumptime;
-	to->oldbuttons = pmove.cmd.buttons;
+	to->oldbuttons = pmove.oldbuttons;
 	VectorCopy (pmove.origin, to->origin);
 	VectorCopy (pmove.angles, to->viewangles);
 	VectorCopy (pmove.velocity, to->velocity);

uquake/sv_main.c

@@ -164,28 +164,19 @@ void SV_Init (void)
 	extern	cvar_t	*sv_idealpitchscale;
 	extern	cvar_t	*sv_aim;
 
-//	Cvar_RegisterVariable (&sv_maxvelocity);
 	sv_maxvelocity = Cvar_Get ("sv_maxvelocity","2000",0,"None");
-//	Cvar_RegisterVariable (&sv_gravity);
 	sv_gravity = Cvar_Get ("sv_gravity","800",
 				CVAR_USERINFO|CVAR_SERVERINFO,"None");
-//	Cvar_RegisterVariable (&sv_friction);
 	sv_friction = Cvar_Get ("sv_friction","4",
 				CVAR_USERINFO|CVAR_SERVERINFO,"None");
-//	Cvar_RegisterVariable (&sv_edgefriction);
+	sv_edgefriction = Cvar_Get ("edgefriction","2",0,"None");
-	sv_edgefriction = Cvar_Get ("sv_edgefriction","2",0,"None");
+	Cvar_Alias_Get("sv_edgefriction",sv_edgefriction);
-//	Cvar_RegisterVariable (&sv_stopspeed);
 	sv_stopspeed = Cvar_Get ("sv_stopspeed","100",0,"None");
-//	Cvar_RegisterVariable (&sv_maxspeed);
 	sv_maxspeed = Cvar_Get ("sv_maxspeed","320",
 				CVAR_USERINFO|CVAR_SERVERINFO,"None");
-//	Cvar_RegisterVariable (&sv_accelerate);
 	sv_accelerate = Cvar_Get ("sv_accelerate","10",0,"None");
-//	Cvar_RegisterVariable (&sv_idealpitchscale);
 	sv_idealpitchscale = Cvar_Get ("sv_idealpitchscale","0.8",0,"None");
-//	Cvar_RegisterVariable (&sv_aim);
 	sv_aim = Cvar_Get ("sv_aim","0.93",0,"None");
-//	Cvar_RegisterVariable (&sv_nostep);
 	sv_nostep = Cvar_Get ("sv_nostep","0",0,"None");
 
 	for (i=0 ; i<MAX_MODELS ; i++)

uquake/sv_user.c

@@ -38,7 +38,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 edict_t	*sv_player;
 
 extern	cvar_t	*sv_friction;
-//cvar_t	sv_edgefriction = {"edgefriction", "2"};
 cvar_t	*sv_edgefriction;
 extern	cvar_t	*sv_stopspeed;