quick and dirty fix to make it compile and (seemingly) work

on 32 bits systems, it needs more testing though

lib/blacklist.c

@@ -124,6 +124,6 @@ int blacklist_init_from_files(char *whitelist_filename, char *blacklist_filename
 	constraint_optimize(constraint);
 	uint64_t allowed = blacklist_count_allowed();
 	log_debug("blacklist", "%lu addresses allowed to be scanned (%0.0f%% of address space)", 
-			  allowed, allowed*100./(1L << 32));
+			  allowed, allowed*100./(1L << (int)sizeof(long)*4));
 	return 0;
 }