update engine: 32- and 64-bit compile

src/platform/update_engine/update_check_action.cc

 // Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "update_engine/update_check_action.h"
+#include <inttypes.h>
 #include <sstream>
 
 #include <libxml/parser.h>
 #include <libxml/xpath.h>
 #include <libxml/xpathInternals.h>
 
 #include "chromeos/obsolete_logging.h"
 #include "update_engine/action_pipe.h"
 #include "update_engine/utils.h"
 
@@ skipping 149 matching lines @@
       xmlGetProp(node, ConstXMLStr(name)));
   string ret(reinterpret_cast<const char *>(str.get()));
   return ret;
 }
 
 // Parses a 64 bit base-10 int from a string and returns it. Returns 0
 // on error. If the string contains "0", that's indistinguishable from
 // error.
 off_t ParseInt(const string& str) {
   off_t ret = 0;
-
-  int rc = sscanf(str.c_str(), "%lld", &ret);
+  int rc = sscanf(str.c_str(), "%" PRIi64, &ret);
   if (rc < 1) {
     // failure
     return 0;
   }
   return ret;
 }
 }  // namespace {}
 
 // If the transfer was successful, this uses libxml2 to parse the response
 // and fill in the appropriate fields of the output object. Also, notifies
@@ skipping 68 matching lines @@
   output_object.hash = XmlGetProperty(updatecheck_node, "hash");
   output_object.size = ParseInt(XmlGetProperty(updatecheck_node, "size"));
   output_object.needs_admin =
       XmlGetProperty(updatecheck_node, "needsadmin") == "true";
   output_object.prompt = XmlGetProperty(updatecheck_node, "Prompt") == "true";
   SetOutputObject(output_object);
   return;
 }
 
 };  // namespace chromeos_update_engine