Fix from clang compiler warnings: Include header files to avoid implicit declaration.
diff --git a/src/c/encoding/binary-xml-forwarding-entry.c b/src/c/encoding/binary-xml-forwarding-entry.c
index 271029b..d7ed52a 100644
--- a/src/c/encoding/binary-xml-forwarding-entry.c
+++ b/src/c/encoding/binary-xml-forwarding-entry.c
@@ -7,6 +7,9 @@
#include "binary-xml.h"
#include "binary-xml-forwarding-entry.h"
+#include "binary-xml-name.h"
+#include "binary-xml-key.h"
+#include "binary-xml-publisher-public-key-digest.h"
ndn_Error ndn_encodeBinaryXmlForwardingEntry(struct ndn_ForwardingEntry *forwardingEntry, struct ndn_BinaryXmlEncoder *encoder)
{