make: In ndn-cpp-config.h, to avoid polluting the global name space, generate NDN_CPP_HAVE_BOOST_FUNCTION etc. instead of HAVE_BOOST_FUNCTION, etc.
diff --git a/ndn-cpp/security/identity/osx-private-key-storage.hpp b/ndn-cpp/security/identity/osx-private-key-storage.hpp
index edb15db..514d660 100644
--- a/ndn-cpp/security/identity/osx-private-key-storage.hpp
+++ b/ndn-cpp/security/identity/osx-private-key-storage.hpp
@@ -8,10 +8,10 @@
 #ifndef NDN_OSX_PRIVATEKEY_STORAGE_H
 #define NDN_OSX_PRIVATEKEY_STORAGE_H
 
-// Only compile if ndn-cpp-config.h defines HAVE_OSX_SECKEYCHAIN 1.
-#include "../../c/common.h"
+// Only compile if ndn-cpp-config.h defines NDN_CPP_HAVE_OSX_SECKEYCHAIN 1.
+#include "../../ndn-cpp-config.h"
 #if 0 // temporarily disable.
-//#if HAVE_OSX_SECKEYCHAIN
+//#if NDN_CPP_HAVE_OSX_SECKEYCHAIN
 
 #include "../../common.hpp"
 #include "private-key-storage.hpp"
@@ -201,6 +201,6 @@
   
 }
 
-#endif HAVE_OSX_SECKEYCHAIN
+#endif NDN_CPP_HAVE_OSX_SECKEYCHAIN
 
 #endif