diff -NrU5 tesseract-2.03.orig/viewer/svutil.cpp tesseract-2.03/viewer/svutil.cpp
--- tesseract-2.03.orig/viewer/svutil.cpp	2009-05-11 16:27:37.000000000 -0600
+++ tesseract-2.03/viewer/svutil.cpp	2009-05-11 16:33:40.000000000 -0600
@@ -36,10 +36,11 @@
 #endif
 #endif
 
 #include <iostream>
 #include <string.h>
+#include <cstdio>
 #include <stdlib.h>
 
 const int kBufferSize = 65536;
 const int kMaxMsgSize = 4096;