Add modular library level build file. (#228)

Author: grafikrobot

build.jam

@@ -0,0 +1,20 @@
+# Copyright René Ferdinand Rivera Morell 2023-2024
+# 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)
+
+require-b2 5.2 ;
+
+project /boost/hof
+    : common-requirements
+        <include>include
+    ;
+
+explicit
+    [ alias boost_hof : : : : <library>$(boost_dependencies) ]
+    [ alias all : boost_hof test ]
+    ;
+
+call-if : boost-library hof
+    ;
+

test/Jamfile.v2

@@ -4,12 +4,14 @@
 #    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)
 #==============================================================================
+
+import-search /boost/config/checks ;
+
 import testing ;
-import ../../config/checks/config : requires ;
+import config : requires ;
 
 project hof
     : requirements [ requires cxx11_variadic_templates cxx11_constexpr ]
-      <include>../include/ 
     ;
 
 rule test_all