Add <cstdio> include where needed by gcc-4.4.
Patch by Samuel Tardieu.

llvm-svn: 57291
diff --git a/llvm/lib/System/DynamicLibrary.cpp b/llvm/lib/System/DynamicLibrary.cpp
index 5e3b6cb..970266f 100644
--- a/llvm/lib/System/DynamicLibrary.cpp
+++ b/llvm/lib/System/DynamicLibrary.cpp
@@ -13,6 +13,7 @@
 
 #include "llvm/System/DynamicLibrary.h"
 #include "llvm/Config/config.h"
+#include <cstdio>
 #include <cstring>
 #include <map>