Clean up legacy code

src/msvc/sys/time.h

@@ -19,6 +19,19 @@
 #ifndef _TIME_H_
 #define _TIME_H_
 
+// If you need both <windows.h> and <sys/time.h>,
+// make sure you include <windows.h> first.
+#ifndef _WINSOCKAPI_
+#ifndef _TIMEVAL_DEFINED
+#define _TIMEVAL_DEFINED
+struct timeval
+{
+    long tv_sec;
+    long tv_usec;
+};
+#endif /* _TIMEVAL_DEFINED */
+#endif /* _WINSOCKAPI_ */
+
 struct timezone
 {
     int tz_minuteswest;