build: Experimental support to build using precompiled headers

This type of build needs to be explicitly enabled using --with-pch
configure option.

Change-Id: I02dc304187d54c3cf40f1d51b1b11b21f868e225
diff --git a/src/interest.hpp b/src/interest.hpp
index 29ce962..e09cf2c 100644
--- a/src/interest.hpp
+++ b/src/interest.hpp
@@ -8,6 +8,7 @@
 #ifndef NDN_INTEREST_HPP
 #define NDN_INTEREST_HPP
 
+#include "common.hpp"
 #include "name.hpp"
 #include "exclude.hpp"
 #include "encoding/block.hpp"