Temporary fix for VC++ compile breakage.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26888 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/stopwatch.cpp

@@ -193,6 +193,9 @@ long wxGetLocalTime()
 // Get UTC time as seconds since 00:00:00, Jan 1st 1970
 long wxGetUTCTime()
 {
+#ifdef _MSC_VER
+	unsigned
+#endif
     long timenow = 0;
     time(&timenow);
     return timenow;