Index: lib/sdk/crt/time/strftime.c
===================================================================
--- lib/sdk/crt/time/strftime.c	(revision 57579)
+++ lib/sdk/crt/time/strftime.c	(working copy)
@@ -17,3 +17,40 @@
     return 0;
 }
 
+/* first_wday
+ * Gives you the yday for the first occurence of @wday in the year described 
+ * by time.tm_wday and time.tm_yday.
+ * Does not validate the 'realness' of the year.
+ * Necessary for calculating %g, %G, %V and %U.
+ */
+static
+int 
+first_wday(struct tm time, int wday)
+{
+	TCHAR circ_week[] = {_T('\x0A'), _T('\x01'), _T('\x02'), _T('\x03'), _T('\x04'), _T('\x05'), _T('\x06'),
+						 _T('\x0A'), _T('\x01'), _T('\x02'), _T('\x03'), _T('\x04'), _T('\x05'), _T('\x06')};
+	int delta;
+	int f_mon;
+	TCHAR* mon_ptr;
+	
+	if (time.tm_wday < 0 || time.tm_wday > 6 || time.tm_yday < 0 || time.tm_yday > 365 || wday < 0 || wday > 6)
+		return -1;
+
+	if (0 == wday)
+		wday = 0x0A;
+
+	// If true, time.tm_wday first day is in the first week of the year
+	// If false, in second week
+	if (time.tm_yday % 7 <= time.tm_wday) 
+		mon_ptr = _tcschr(&circ_week[time.tm_wday], wday);
+	else
+		mon_ptr = _tcschr(circ_week, wday);
+	
+	if (NULL == mon_ptr)
+		return -1;
+		
+	delta = mon_ptr - &circ_week[time.tm_wday];
+	f_mon = circ_week[time.tm_yday % 7 + delta] % 0x0A;
+	
+	return f_mon;
+}