Update test/cmake_subdir_test

test/cmake_subdir_test/CMakeLists.txt

@@ -2,39 +2,39 @@
 # Distributed under the Boost Software License, Version 1.0.
 # See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
 
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.5...3.20)
 
 project(cmake_subdir_test LANGUAGES CXX)
 
 add_subdirectory(../.. boostorg/function)
 
-# boost_add_subdir
+set(deps
 
-function(boost_add_subdir name)
+# Primary dependencies
 
-    add_subdirectory(../../../${name} boostorg/${name})
+assert
+bind
+config
+core
+preprocessor
+throw_exception
+type_index
+type_traits
+typeof
 
-endfunction()
+# Secondary dependencies
 
-# primary dependencies
+static_assert
+container_hash
+describe
+mp11
+)
 
-boost_add_subdir(assert)
-boost_add_subdir(bind)
-boost_add_subdir(config)
-boost_add_subdir(core)
-boost_add_subdir(integer)
-boost_add_subdir(preprocessor)
-boost_add_subdir(throw_exception)
-boost_add_subdir(type_index)
-boost_add_subdir(type_traits)
-boost_add_subdir(typeof)
+foreach(dep IN LISTS deps)
 
-# secondary dependencies
+  add_subdirectory(../../../${dep} boostorg/${dep})
 
-boost_add_subdir(static_assert)
-boost_add_subdir(container_hash)
-boost_add_subdir(describe)
-boost_add_subdir(mp11)
+endforeach()
 
 # --target check