else if (!strcmp(argv[1], "-R"))
diff_setup_opt |= DIFF_SETUP_REVERSE;
else if (!strncmp(argv[1], "-S", 2))
pickaxe = argv[1] + 2;
else if (!strncmp(argv[1], "-O", 2))
orderfile = argv[1] + 2;
else if (!strcmp(argv[1], "-R"))
diff_setup_opt |= DIFF_SETUP_REVERSE;
else if (!strncmp(argv[1], "-S", 2))
pickaxe = argv[1] + 2;
else if (!strncmp(argv[1], "-O", 2))
orderfile = argv[1] + 2;