re2 fixes for Windows

src/openalpr/support/re2/util/strutil.cc

@@ -1,7 +1,7 @@
 // Copyright 1999-2005 The RE2 Authors.  All Rights Reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
-
+#include <stdio.h>
 #include "re2/util/util.h"
 #include "re2/stringpiece.h"
 
@@ -38,7 +38,12 @@ int CEscapeString(const char* src, int src_len, char* dest,
         if (c < ' ' || c > '~') {
           if (dest_len - used < 5)   // space for four-character escape + \0
             return -1;
-          sprintf(dest + used, "\\%03o", c);
+		  #ifdef WIN32
+		  sprintf_s(dest + used, dest_len, "\\%03o", c);
+		  #else
+		  std::sprintf(dest + used, "\\%03o", c);
+		  #endif
+          
           used += 4;
         } else {
           dest[used++] = c; break;