diff -Naur ClanLib-1.0.0/Sources//GL/canvas_opengl.cpp ClanLib-1.0.0.new/Sources//GL/canvas_opengl.cpp
--- ClanLib-1.0.0/Sources//GL/canvas_opengl.cpp	2007-10-21 02:14:01.000000000 +0200
+++ ClanLib-1.0.0.new/Sources//GL/canvas_opengl.cpp	2012-03-25 13:34:50.346669577 +0200
@@ -48,6 +48,7 @@
 #include "graphic_context_opengl.h"
 #include "surface_target_opengl.h"
 #include <cstring>
+#include <cstdio>
 
 /////////////////////////////////////////////////////////////////////////////
 // CL_Canvas_OpenGL construction:
diff -Naur ClanLib-1.0.0/Sources//GL/GLX/input_device_linuxevent.cpp ClanLib-1.0.0.new/Sources//GL/GLX/input_device_linuxevent.cpp
--- ClanLib-1.0.0/Sources//GL/GLX/input_device_linuxevent.cpp	2007-10-21 02:14:01.000000000 +0200
+++ ClanLib-1.0.0.new/Sources//GL/GLX/input_device_linuxevent.cpp	2012-03-25 13:34:50.347669587 +0200
@@ -35,6 +35,7 @@
 #include <iostream>
 #include <errno.h>
 #include <cstring>
+#include <cstdio>
 
 #include "API/Core/System/error.h"
 #include "API/Core/System/clanstring.h"
diff -Naur ClanLib-1.0.0/Sources//GL/GLX/input_device_xinput.cpp ClanLib-1.0.0.new/Sources//GL/GLX/input_device_xinput.cpp
--- ClanLib-1.0.0/Sources//GL/GLX/input_device_xinput.cpp	2007-10-21 02:14:01.000000000 +0200
+++ ClanLib-1.0.0.new/Sources//GL/GLX/input_device_xinput.cpp	2012-03-25 13:37:34.391330132 +0200
@@ -29,6 +29,7 @@
 
 #include <iostream>
 #include <cstring>
+#include <cstdio>
 #include "API/Core/System/log.h"
 #include "API/Display/input_device.h"
 #include "API/Display/input_event.h"