diff -r 1831912d4109 tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c	Thu Sep 02 19:12:42 2010 +0100
+++ b/tools/libxl/xl_cmdimpl.c	Wed Sep 08 09:31:01 2010 +0200
@@ -3405,7 +3405,7 @@ int main_vcpulist(int argc, char **argv)
         }
     }
 
-    vcpulist(argc - 2, argv + 2);
+    vcpulist(argc - optind, argv + optind);
     return 0;
 }
 
@@ -3494,22 +3494,23 @@ int main_vcpupin(int argc, char **argv)
 {
     int opt;
 
-    if (argc != 5) {
+    while ((opt = getopt(argc, argv, "h")) != -1) {
+        switch (opt) {
+        case 'h':
+            help("vcpu-pin");
+            return 0;
+        default:
+            fprintf(stderr, "option `%c' not supported.\n", opt);
+            break;
+        }
+    }
+
+    if (optind != argc - 3) {
         help("vcpu-pin");
-        return 0;
-    }
-    while ((opt = getopt(argc, argv, "h")) != -1) {
-        switch (opt) {
-        case 'h':
-            help("vcpu-pin");
-            return 0;
-        default:
-            fprintf(stderr, "option `%c' not supported.\n", opt);
-            break;
-        }
-    }
-
-    vcpupin(argv[2], argv[3] , argv[4]);
+        return 2;
+    }
+
+    vcpupin(argv[optind], argv[optind+1] , argv[optind+2]);
     return 0;
 }