Fix warnings.

src/sbbs3/gtkchat/callbacks.c

@@ -12,8 +12,8 @@ get_from_remote(gpointer data)
 	int		ch;
 	gchar	*outstr;
 	gchar	instr[2];
-	int		inbytes;
-	int		outbytes;
+	gsize		inbytes;
+	gsize		outbytes;
 
 	instr[1]=0;
 	switch(chat_check_remote()) {
@@ -99,8 +99,8 @@ on_LocalText_key_press_event           (GtkWidget       *widget,
 {
 	gchar	*outstr;
 	gchar	instr[2];
-	int		inbytes;
-	int		outbytes;
+	gsize	inbytes;
+	gsize	outbytes;
 
 	if(event->keyval==GDK_BackSpace || event->keyval==GDK_Delete) {
 		GtkTextIter		start;

src/sbbs3/gtkchat/chatfuncs.c

@@ -132,13 +132,15 @@ int chat_read_byte(void)
 			in=-1;
 			return(-1);
 		case 0:
-			if(lseek(in,0,SEEK_SET)==-1);	/* Wrapped */
+			if(lseek(in,0,SEEK_SET)==-1)	/* Wrapped */
 				return(-1);
 			switch(read(in,&ch,1)) {
 				case -1:
 					close(in);
 					in=-1;
 					return(-1);
+				case 0:
+					return 0;
 			}
 			/* Fall-through */
 		case 1:

src/sbbs3/gtkmonitor/gtkmonitor.c

@@ -469,7 +469,6 @@ int read_config(void)
 }
 
 int main(int argc, char *argv[]) {
-	GError* error = NULL;
 	GtkWindow*	xml;
 
     gtk_init(&argc, &argv);