diff --git a/Makefile b/Makefile
index d28716d..82e02c3 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ override CFLAGS += -D_REENTRANT $(shell sdl-config --cflags) $(DBG) $(WARNFLAGS)
 all: sdlbomber
 
 sdlbomber: announce.o bomber.o draw.o game.o gfx.o sound.o list.o network.o menu.o utils.o
-	gcc -o $@ $^ $(shell sdl-config --libs) -lavahi-common -lavahi-client $(DBG)
+	gcc $(LDFLAGS) -o $@ $^ $(shell sdl-config --libs) -lavahi-common -lavahi-client $(DBG)
 
 matcher: matcher.c
 
diff --git a/announce.c b/announce.c
index 12c353d..ce3e63b 100644
--- a/announce.c
+++ b/announce.c
@@ -279,7 +279,7 @@ int searchgames(void) {
 
 	avahi_threaded_poll_lock(threaded_poll);
 
-	if (NULL == (browser = avahi_service_browser_new(client, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, SERVICE_TYPE, NULL, 0, browse_callback, &gameversion))) {
+	if (NULL == (browser = avahi_service_browser_new(client, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, SERVICE_TYPE, NULL, 0, browse_callback, NULL))) {
 		fprintf(stderr, "Failed to create service browser: %s\n", avahi_strerror(avahi_client_errno(client)));
 		avahi_threaded_poll_unlock(threaded_poll);
 		return 0;
diff --git a/draw.c b/draw.c
index a625051..055b89d 100644
--- a/draw.c
+++ b/draw.c
@@ -97,11 +97,11 @@ static int dopcxreal(char *name,gfxset *gs) {
 
 	memset(gs,0,sizeof(gfxset));
 	ileft=0;
-	sprintf(tname,DATADIR "/%s",name);
+	snprintf(tname,sizeof(tname),DATADIR "/%s",name);
 	ihand=open(tname,O_RDONLY);
 	if(ihand<0) {
-		char tname2[256];
-		sprintf(tname2,"%s.pcx",tname);
+		char tname2[260];
+		snprintf(tname2,sizeof(tname2),"%s.pcx",tname);
 		ihand=open(tname2,O_RDONLY);
 		if(ihand<0)
 			return 1;
@@ -258,7 +258,7 @@ static void bigscrprintf(char *str,...) {
 	va_list ap;
 
 	va_start(ap, str);
-	vsprintf(output,str,ap);
+	vsnprintf(output,sizeof(output),str,ap);
 	p=output;
 	for(;;) {
 		p2=p;
@@ -386,7 +386,7 @@ void loadgfx() {
 	gfxset *colorgs;
 	int err;
 	int i;
-	char name[256];
+	char name[267];
 
 	strcpy(walkingname,"walk");
 	strcpy(colorsetname,"pal");
@@ -407,7 +407,7 @@ void loadgfx() {
 	colorgs=gs+1;
 
 	for(i=0;i<MAXSETS;++i) {
-		sprintf(name,"%s%d",colorsetname,i);
+		snprintf(name,sizeof(name),"%s%d",colorsetname,i);
 		err=dopcx(name,colorgs+i);
 		if(err) continue;
 	}
diff --git a/game.c b/game.c
index b57c5a0..ab27fda 100644
--- a/game.c
+++ b/game.c
@@ -468,11 +468,12 @@ static void drawbombs(void) {
 static void drawflames(void) {
 	flame *fl;
 	int xpos,ypos;
-	int color;
+	/* no player specific flame sprites yet */
+	/* int color; */
 	int fig;
 
 	list_for_each_entry(fl, &activeflames, list) {
-		color=fl->owner->color;
+		/* color=fl->owner->color; */
 		xpos=tovideox(fl->xpos);
 		ypos=tovideoy(fl->ypos);
 		fig=(fl->timer*10)/FLAMELIFE;
@@ -747,9 +748,9 @@ static void applybonus(player *pl,bonustile *bonus) {
 }
 
 static void doplayer(player *pl) {
-	int last;
+	/* int last; */
 	int color;
-	int speed;
+	/* int speed; */
 	int px,py;
 	int there;
 	int flags;
@@ -763,9 +764,9 @@ static void doplayer(player *pl) {
 	flags=pl->flags;
 	if(flags&FLG_DEAD) return;
 	color=pl->color;
-	last=pl->doing;
+	/* last=pl->doing; */
 	pl->doing=what;
-	speed=pl->speed;
+	/* speed=pl->speed; */
 	px=screentoarrayx(pl->xpos);
 	py=screentoarrayy(pl->ypos);
 	there=field[py][px];
diff --git a/gfx.c b/gfx.c
index 42d8d6c..3eb0c14 100644
--- a/gfx.c
+++ b/gfx.c
@@ -158,12 +158,12 @@ static void gfxfetchsingle(figure *fig,gfxset *gs,int sourcex,int sourcey,int si
 {
 uchar *p,*p2;
 int dx,dy;
-uchar *map1;
+/* uchar *map1; */
 int gswidth;
 int minx,miny,maxx,maxy;
 int tx,ty;
 
-	map1=gs->gs_inout;
+	/* map1=gs->gs_inout; */
 	gswidth=gs->gs_xsize;
 	p=gs->gs_pic+sourcex+gswidth*sourcey;
 	minx=miny=maxx=maxy=-1;
@@ -480,7 +480,7 @@ int checkbuttondown(int button)
 	return buttondown & (1<<button);
 }
 
-int anydown()
+int anydown(void)
 {
 	return numdown;
 }
@@ -498,7 +498,7 @@ int res=0;
 	}
 	return res;
 }
-int firstdown(vopid)
+int firstdown(void)
 {
 	return *downcodes;
 }
diff --git a/gfx.h b/gfx.h
index 944bdbb..37a5533 100644
--- a/gfx.h
+++ b/gfx.h
@@ -28,38 +28,38 @@ void closegfx(void);
 void greyrect(int x,int y,int xsize,int ysize);
 void clearrect(int x,int y,int xsize,int ysize);
 void solidfetch(gfxset *gs,solid *dest);
-extern void dumpgfx();
+extern void dumpgfx(void);
 extern void createinout(struct gfxset *);
-extern void getcolors();
+extern void getcolors(void);
 extern void gfxfetch(struct gfxset *,struct figure *,int);
 extern void puttile(int destx,int desty,int source);
 extern void store(int x,int y,int which);
 extern void restore(int x,int y,int which);
-extern void copyup();
+extern void copyup(void);
 extern void copyupxy(int x,int y);
 extern void copyupxysize(int x,int y,int xsize,int ysize);
-extern void getfigures();
+extern void getfigures(void);
 extern unsigned long getcolor(char *name);  /* unsigned long */
 extern int checkpressed(int code);
 extern int checkdown(int code);
 extern int checkbutton(int button);
 extern int checkbuttondown(int button);
-extern int anydown();
-extern int firstdown();
-extern void scaninput();
-extern void fontinit();
+extern int anydown(void);
+extern int firstdown(void);
+extern void scaninput(void);
+extern void fontinit(void);
 extern void writechar(int x,int y,uchar ch);
-extern void clear();
+extern void clear(void);
 extern void drawbox(int x,int y,int size,int color);
 extern void drawbox2(int x,int y,int sizex,int sizey,int color);
 extern void drawfillrect(int x,int y,int size,int color);
 extern void bigpixel(int x,int y,int color);
 extern void invert(int x,int y);
-extern int getmousex();
-extern int getmousey();
+extern int getmousex(void);
+extern int getmousey(void);
 extern void drawsquare(int x,int y,uchar *source);
-extern void colormapon();
-extern void colormapoff();
+extern void colormapon(void);
+extern void colormapoff(void);
 extern void palette(uchar *pal);
 extern void drawfigure(int x,int y,figure *fig);
 extern void drawfigureany(int x,int y,figure *fig,solid *dest);
diff --git a/list.c b/list.c
index fce072c..9baa1a9 100644
--- a/list.c
+++ b/list.c
@@ -21,8 +21,6 @@ static genericlistitem *free_things;
 
 static int count_used = 0;
 
-static const int num = MAXTHINGS;
-
 void alloc_things(void) {
 	int i;
 
diff --git a/menu.c b/menu.c
index 4d70bba..b6b2ed5 100644
--- a/menu.c
+++ b/menu.c
@@ -230,7 +230,7 @@ static void draw_host_game(void) {
 	for(i=0;i<MAXNETNODES;++i) {
 		if(!netnodes[i].used) continue;
 		name=netnodes[i].name;
-		sprintf(temp,"  %d     %s",i+1,name);
+		snprintf(temp,sizeof(temp),"  %d     %s",i+1,name);
 		drawbigstring(M3X,M3Y+(i+2)*bigfontyspace,temp);
 	}
 
@@ -288,7 +288,7 @@ static void drawjoinscreen(void) {
 		if(!netnodes[i].used) continue;
 		memmove(name,netnodes[i].name,16);
 		name[16]=0;
-		sprintf(temp,"  %d     %s",i+1,name);
+		snprintf(temp,sizeof(temp),"  %d     %s",i+1,name);
 		drawbigstring(JX,JY+(i+1)*bigfontyspace,temp);
 	}
 }
diff --git a/network.h b/network.h
index e666429..2cdbbcf 100644
--- a/network.h
+++ b/network.h
@@ -7,7 +7,7 @@
 
 enum {
 	MAXNETNODES = 8
-} maxnetnodesconst;
+};
 
 struct netnode {
 	struct sockaddr_in netname;
diff --git a/sound.c b/sound.c
index 6a1ddc1..642d2e6 100644
--- a/sound.c
+++ b/sound.c
@@ -149,7 +149,7 @@ void soundclose(void) {
 
 int readsound(int num) {
 char name[256],*p1,*p2,ch;
-int i,file,size,len;
+int file,size,len;
 	p1=dirlist;
 	for(;;)
 	{
@@ -173,7 +173,7 @@ int i,file,size,len;
 	p1=samples[num].data=malloc(len);
 	if(p1)
 	{
-		i=read(file,p1,size);
+		read(file,p1,size);
 		if(len-size) memset(p1+size,0,len-size);
 		while(size--) *p1++ ^= 0x80;
 	} else