Stomps compiler warnings in HCA min-dist calculation. This should be added to cmr:v1.7:reviewer=jladd

This commit was SVN r28620.

opal/mca/hwloc/base/hwloc_base_dt.c

@@ -150,7 +150,6 @@ int opal_hwloc_unpack(opal_buffer_t *buffer, void *dest,
 
 int opal_hwloc_copy(hwloc_topology_t *dest, hwloc_topology_t src, opal_data_type_t type)
 {
-    int i;
     char *xml;
     int len;
     struct hwloc_topology_support *support, *destsupport;

opal/mca/hwloc/base/hwloc_base_util.c

@@ -1653,12 +1653,11 @@ static void sort_by_dist(hwloc_topology_t topo, const char* device_name, opal_li
     hwloc_obj_t device_obj = NULL;
     hwloc_obj_t obj = NULL, root = NULL;
     const struct hwloc_distances_s* distances;
-    opal_list_item_t *numa_item;
     orte_rmaps_numa_node_t *numa_node;
     int close_node_index;
     float latency;
-    int j;
-    int depth;
+    unsigned int j;
+    unsigned int depth;
     unsigned i;
 
     for (device_obj = hwloc_get_obj_by_type(topo, HWLOC_OBJ_OS_DEVICE, 0); device_obj; device_obj = hwloc_get_next_osdev(topo, device_obj)) {