update google on windows

winx64/include/glog/logging.h

@@ -568,8 +568,10 @@ class LogSink;  // defined below
   LOG_TO_STRING_##severity(static_cast<std::vector<std::string>*>(outvec)).stream()
 
 #define LOG_IF(severity, condition) \
+  static_cast<void>(0),             \
   !(condition) ? (void) 0 : google::LogMessageVoidify() & LOG(severity)
 #define SYSLOG_IF(severity, condition) \
+  static_cast<void>(0),                \
   !(condition) ? (void) 0 : google::LogMessageVoidify() & SYSLOG(severity)
 
 #define LOG_ASSERT(condition)  \
@@ -859,6 +861,7 @@ DECLARE_CHECK_STROP_IMPL(strcasecmp, false)
       &google::LogMessage::SendToLog)
 
 #define PLOG_IF(severity, condition) \
+  static_cast<void>(0),              \
   !(condition) ? (void) 0 : google::LogMessageVoidify() & PLOG(severity)
 
 // A CHECK() macro that postpends errno if the condition is false. E.g.
@@ -931,16 +934,11 @@ struct CompileAssert {
 struct CrashReason;
 
 // Returns true if FailureSignalHandler is installed.
-bool IsFailureSignalHandlerInstalled();
+// Needs to be exported since it's used by the signalhandler_unittest.
+GOOGLE_GLOG_DLL_DECL bool IsFailureSignalHandlerInstalled();
 }  // namespace glog_internal_namespace_
 
-#define GOOGLE_GLOG_COMPILE_ASSERT(expr, msg) \
-  typedef google::glog_internal_namespace_::CompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1]
-
 #define LOG_EVERY_N(severity, n)                                        \
-  GOOGLE_GLOG_COMPILE_ASSERT(google::GLOG_ ## severity < \
-                             google::NUM_SEVERITIES,     \
-                             INVALID_REQUESTED_LOG_SEVERITY);           \
   SOME_KIND_OF_LOG_EVERY_N(severity, (n), google::LogMessage::SendToLog)
 
 #define SYSLOG_EVERY_N(severity, n) \
@@ -1008,23 +1006,29 @@ const LogSeverity GLOG_0 = GLOG_ERROR;
 
 #else  // !DCHECK_IS_ON()
 
-#define DLOG(severity) \
+#define DLOG(severity)  \
+  static_cast<void>(0), \
   true ? (void) 0 : google::LogMessageVoidify() & LOG(severity)
 
-#define DVLOG(verboselevel) \
-  (true || !VLOG_IS_ON(verboselevel)) ?\
-    (void) 0 : google::LogMessageVoidify() & LOG(INFO)
+#define DVLOG(verboselevel)             \
+  static_cast<void>(0),                 \
+  (true || !VLOG_IS_ON(verboselevel)) ? \
+      (void) 0 : google::LogMessageVoidify() & LOG(INFO)
 
 #define DLOG_IF(severity, condition) \
+  static_cast<void>(0),              \
   (true || !(condition)) ? (void) 0 : google::LogMessageVoidify() & LOG(severity)
 
 #define DLOG_EVERY_N(severity, n) \
+  static_cast<void>(0),           \
   true ? (void) 0 : google::LogMessageVoidify() & LOG(severity)
 
 #define DLOG_IF_EVERY_N(severity, condition, n) \
+  static_cast<void>(0),                         \
   (true || !(condition))? (void) 0 : google::LogMessageVoidify() & LOG(severity)
 
 #define DLOG_ASSERT(condition) \
+  static_cast<void>(0),        \
   true ? (void) 0 : LOG_ASSERT(condition)
 
 // MSVC warning C4127: conditional expression is constant
@@ -1109,10 +1113,11 @@ namespace base_logging {
 // buffer to allow for a '\n' and '\0'.
 class GOOGLE_GLOG_DLL_DECL LogStreamBuf : public std::streambuf {
  public:
-  // REQUIREMENTS: "len" must be >= 2 to account for the '\n' and '\n'.
+  // REQUIREMENTS: "len" must be >= 2 to account for the '\n' and '\0'.
   LogStreamBuf(char *buf, int len) {
     setp(buf, buf + len - 2);
   }
+
   // This effectively ignores overflow.
   virtual int_type overflow(int_type ch) {
     return ch;
@@ -1151,13 +1156,9 @@ public:
   // 2005 if you are deriving from a type in the Standard C++ Library"
   // http://msdn.microsoft.com/en-us/library/3tdb471s(VS.80).aspx
   // Let's just ignore the warning.
-#ifdef _MSC_VER
-# pragma warning(disable: 4275)
-#endif
+GLOG_MSVC_PUSH_DISABLE_WARNING(4275)
   class GOOGLE_GLOG_DLL_DECL LogStream : public std::ostream {
-#ifdef _MSC_VER
-# pragma warning(default: 4275)
-#endif
+GLOG_MSVC_POP_WARNING()
   public:
     LogStream(char *buf, int len, int ctr)
         : std::ostream(NULL),