Trent Mick <trentm@activestate.com>:

Mark Hammond provided (a long time ago) a better Win32 specific
time_clock implementation in timemodule.c. The library for this
implementation does not exist on Win64 (yet, at least). This patch
makes Win64 fall back on the system's clock() function for
time_clock().

This closes SourceForge patch #100512.

Modules/timemodule.c

@@ -89,11 +89,12 @@ extern int ftime();
 #endif /* MS_WINDOWS */
 #endif /* !__WATCOMC__ || __QNX__ */
 
-#ifdef MS_WIN32
-/* Win32 has better clock replacement */
+#if defined(MS_WIN32) && !defined(MS_WIN64)
+/* Win32 has better clock replacement
+   XXX Win64 does not yet, but might when the platform matures. */
 #include <largeint.h>
 #undef HAVE_CLOCK /* We have our own version down below */
-#endif /* MS_WIN32 */
+#endif /* MS_WIN32 && !MS_WIN64 */
 
 #if defined(PYCC_VACPP)
 #include <sys/time.h>
@@ -190,7 +191,7 @@ time_clock(self, args)
 }
 #endif /* HAVE_CLOCK */
 
-#ifdef MS_WIN32
+#if defined(MS_WIN32) && !defined(MS_WIN64)
 /* Due to Mark Hammond */
 static PyObject *
 time_clock(self, args)
@@ -226,7 +227,7 @@ time_clock(self, args)
 }
 
 #define HAVE_CLOCK /* So it gets included in the methods */
-#endif /* MS_WIN32 */
+#endif /* MS_WIN32 && !MS_WIN64 */
 
 #ifdef HAVE_CLOCK
 static char clock_doc[] =