ndnboost: Also rename BOOST_ to NDNBOOST_
diff --git a/include/ndnboost/preprocessor/control/expr_if.hpp b/include/ndnboost/preprocessor/control/expr_if.hpp
index 364ef59..b51a326 100644
--- a/include/ndnboost/preprocessor/control/expr_if.hpp
+++ b/include/ndnboost/preprocessor/control/expr_if.hpp
@@ -11,20 +11,20 @@
#
# /* See http://www.boost.org for most recent version. */
#
-# ifndef BOOST_PREPROCESSOR_CONTROL_EXPR_IF_HPP
-# define BOOST_PREPROCESSOR_CONTROL_EXPR_IF_HPP
+# ifndef NDNBOOST_PREPROCESSOR_CONTROL_EXPR_IF_HPP
+# define NDNBOOST_PREPROCESSOR_CONTROL_EXPR_IF_HPP
#
# include <ndnboost/preprocessor/config/config.hpp>
# include <ndnboost/preprocessor/control/expr_iif.hpp>
# include <ndnboost/preprocessor/logical/bool.hpp>
#
-# /* BOOST_PP_EXPR_IF */
+# /* NDNBOOST_PP_EXPR_IF */
#
-# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
-# define BOOST_PP_EXPR_IF(cond, expr) BOOST_PP_EXPR_IIF(BOOST_PP_BOOL(cond), expr)
+# if ~NDNBOOST_PP_CONFIG_FLAGS() & NDNBOOST_PP_CONFIG_EDG()
+# define NDNBOOST_PP_EXPR_IF(cond, expr) NDNBOOST_PP_EXPR_IIF(NDNBOOST_PP_BOOL(cond), expr)
# else
-# define BOOST_PP_EXPR_IF(cond, expr) BOOST_PP_EXPR_IF_I(cond, expr)
-# define BOOST_PP_EXPR_IF_I(cond, expr) BOOST_PP_EXPR_IIF(BOOST_PP_BOOL(cond), expr)
+# define NDNBOOST_PP_EXPR_IF(cond, expr) NDNBOOST_PP_EXPR_IF_I(cond, expr)
+# define NDNBOOST_PP_EXPR_IF_I(cond, expr) NDNBOOST_PP_EXPR_IIF(NDNBOOST_PP_BOOL(cond), expr)
# endif
#
# endif