Fixed Sun Studio 8 compilation failures as suggested by Jorgen and reviewed

by Svoj over e-mail.

storage/myisam/mi_check.c

@@ -801,7 +801,7 @@ static int chk_index(MI_CHECK *param, MI_INFO *info, MI_KEYDEF *keyinfo,
     {
       DBUG_DUMP("old",(uchar*) info->lastkey, info->lastkey_length);
       DBUG_DUMP("new",(uchar*) key, key_length);
-      DBUG_DUMP("new_in_page",(char*) old_keypos,(uint) (keypos-old_keypos));
+      DBUG_DUMP("new_in_page",(uchar*) old_keypos,(uint) (keypos-old_keypos));
 
       if (comp_flag & SEARCH_FIND && flag == 0)
 	mi_check_print_error(param,"Found duplicated key at page %s",llstr(page,llbuff));
@@ -871,7 +871,7 @@ static int chk_index(MI_CHECK *param, MI_INFO *info, MI_KEYDEF *keyinfo,
 			 llstr(page,llbuff),llstr(record,llbuff2),
 			 llstr(info->state->data_file_length,llbuff3)));
       DBUG_DUMP("key",(uchar*) key,key_length);
-      DBUG_DUMP("new_in_page",(char*) old_keypos,(uint) (keypos-old_keypos));
+      DBUG_DUMP("new_in_page",(uchar*) old_keypos,(uint) (keypos-old_keypos));
       goto err;
     }
     param->record_checksum+=(ha_checksum) record;
@@ -1545,6 +1545,8 @@ int mi_repair(MI_CHECK *param, register MI_INFO *info,
   if (info->s->options & (HA_OPTION_CHECKSUM | HA_OPTION_COMPRESS_RECORD))
     param->testflag|=T_CALC_CHECKSUM;
 
+  DBUG_ASSERT(param->use_buffers < SIZE_T_MAX);
+
   if (!param->using_global_keycache)
     VOID(init_key_cache(dflt_key_cache, param->key_cache_block_size,
                         (size_t) param->use_buffers, 0, 0));