Index: lib/sdk/crt/time/strftime.c
===================================================================
--- lib/sdk/crt/time/strftime.c	(revision 37626)
+++ lib/sdk/crt/time/strftime.c	(working copy)
@@ -233,6 +233,9 @@
   char *x;
   char *f;
   size_t i,j;
+  /* when maxsize is zero just return with zero */
+  if ((gsize = maxsize) < 1)
+    return 0;
   x = malloc(maxsize);
   j = wcslen(format);
   f = malloc(j+1);
@@ -240,8 +243,6 @@
 	f[i] = (char)*format;
   f[i] = 0;
   pt = x;
-  if ((gsize = maxsize) < 1)
-    return 0;
   if (_fmt(f, t)) {
     *pt = '\0';
     free(f);