build: prepend "NFD_" to various macro names to avoid conflicts

Change-Id: Icc370968e3d38fef80ece35a2aed56450f54b653
diff --git a/daemon/fw/strategy-info.hpp b/daemon/fw/strategy-info.hpp
index aae3862..49b5b95 100644
--- a/daemon/fw/strategy-info.hpp
+++ b/daemon/fw/strategy-info.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2014-2016,  Regents of the University of California,
+/*
+ * Copyright (c) 2014-2021,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -31,7 +31,7 @@
 namespace nfd {
 namespace fw {
 
-/** \brief contains arbitrary information forwarding strategy places on table entries
+/** \brief Contains arbitrary information placed by the forwarding strategy on table entries
  */
 class StrategyInfo
 {
@@ -41,10 +41,7 @@
    *  \sa https://redmine.named-data.net/projects/nfd/wiki/StrategyInfoType
    */
   static constexpr int
-  getTypeId()
-  {
-    return <type-identifier>;
-  }
+  getTypeId();
 #endif
 
   virtual