diff -ur openexr_viewers-1.0.1.orig/exrdisplay/applyCtl.cpp openexr_viewers-1.0.1/exrdisplay/applyCtl.cpp
--- playexr/ctlToLut.cpp.orig	2009-12-14 09:07:00.863493115 -0800
+++ playexr/ctlToLut.cpp	2009-12-14 09:08:16.721186947 -0800
@@ -49,6 +49,7 @@
     #include <ImfFrameBuffer.h>
     #include <cassert>
     #include <iostream>
+    #include <cstdio>
 
     using namespace std;
     using namespace Ctl;
@@ -61,6 +62,7 @@
     #include <ImfHeader.h>
     #include <cassert>
     #include <iostream>
+    #include <cstdio>
 
     using namespace std;
     using namespace Imf;
--- exrdisplay/applyCtl.cpp.orig	2009-12-14 09:11:44.950334079 -0800
+++ exrdisplay/applyCtl.cpp	2009-12-14 09:11:59.900332294 -0800
@@ -49,6 +49,7 @@
     #include <ImfFrameBuffer.h>
     #include <cassert>
     #include <iostream>
+    #include <cstdio>
 
     using namespace std;
     using namespace Ctl;
@@ -61,6 +62,7 @@
     #include <ImfHeader.h>
     #include <cassert>
     #include <iostream>
+    #include <cstdio>
 
     using namespace std;
     using namespace Imf;