--- reference.H.orig	2003-05-11 20:58:51.000000000 +0200
+++ reference.H	2005-06-21 18:33:31.624604128 +0200
@@ -21,7 +21,7 @@
 #include <cstdlib>
 #include <cctype>
 #include <string>
-//#include <strstream>
+#include <strstream>
 #include <sstream>
 #include <vector>
 #include <algorithm>
--- reference.C.orig	2003-05-11 21:27:40.000000000 +0200
+++ reference.C	2005-06-21 18:33:31.624604128 +0200
@@ -220,10 +220,10 @@
   }
   // Escape 8bit characters.
   string res = "";
-  string hexbuf;
+  char hexbuf[4];
   for (unsigned int i = 0; i < s.size(); ++i){
     if (s[i] & 0x80) {
-      ostringstream hexstr(hexbuf);
+      ostrstream hexstr(hexbuf, 4);
       hexstr << 'x' << setw(2) << setfill('0') << hex << (int)(s[i] & 0xff);
       res += hexbuf[0];
       res += hexbuf[1];