Add support for modular build structure. (#102)

* Make the library modular usable.

* Switch to library requirements instead of source. As source puts extra source in install targets.

* Add missing lib reference.

* Add requires-b2 check to top-level build file.

* Bump B2 require to 5.2

* Change all <source> references to <library>.

* Update copyright dates.

* Move inter-lib dependencies to a project variable and into the build targets.

* Update build deps.

Jamfile

@@ -1,21 +0,0 @@
-#  Boost.Format Library Jamfile
-#
-#  Copyright (c) 2003 Samuel Krempp
-#
-#  Use, modification, and distribution are subject to 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)
-#
-
-project
-    : requirements
-        <toolset>gcc-4.7:<cxxflags>-Wno-unused-parameter
-        <warnings>pedantic
-        <warnings-as-errors>on
-    ;
-
-# please order by name to ease maintenance
-build-project benchmark ;
-build-project example ;
-build-project test ;
-build-project tools ;

benchmark/Jamfile

@@ -6,19 +6,21 @@
 #  See www.boost.org/LICENSE_1_0.txt
 #
 
-project libs/format/benchmark 
+project
     : requirements
-	  <toolset>msvc:<define>_CRT_SECURE_NO_WARNINGS
-	;
+        <library>/boost/format//boost_format
+        <library>/boost/timer//boost_timer
+        <toolset>msvc:<define>_CRT_SECURE_NO_WARNINGS
+    ;
 
 exe bench_format_no_locale
     : bench_format.cpp
       /boost/timer//boost_timer
-    : <define>BOOST_NO_STD_LOCALE <location-prefix>no_locale    
+    : <define>BOOST_NO_STD_LOCALE <location-prefix>no_locale
     ;
 
 exe bench_format_normal
-    : bench_format.cpp 
+    : bench_format.cpp
       /boost/timer//boost_timer
     : <location-prefix>normal
     ;

build.jam

@@ -0,0 +1,37 @@
+# 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 ;
+
+constant boost_dependencies :
+    /boost/assert//boost_assert
+    /boost/config//boost_config
+    /boost/core//boost_core
+    /boost/optional//boost_optional
+    /boost/smart_ptr//boost_smart_ptr
+    /boost/throw_exception//boost_throw_exception
+    /boost/utility//boost_utility ;
+
+project /boost/format
+    : common-requirements
+        <include>include
+    ;
+
+explicit
+    [ alias boost_format : : : : <library>$(boost_dependencies) ]
+    [ alias all
+        :   boost_format
+            benchmark
+            example
+            test
+            tools
+        :   <warnings>pedantic
+            <warnings-as-errors>on
+        ]
+    ;
+
+call-if : boost-library format
+    ;
+

example/Jamfile.v2

@@ -7,10 +7,12 @@
 
 import testing ;
 
+project : requirements <library>/boost/format//boost_format ;
+
 test-suite "format-examples"
    :    [ run sample_advanced.cpp ]
         [ run sample_formats.cpp ]
         [ run sample_new_features.cpp ]
-        [ run sample_userType.cpp ]
+        [ run sample_userType.cpp : : : <library>/boost/numeric_conversion//boost_numeric_conversion ]
    ;
 

test/Jamfile.v2

@@ -7,6 +7,11 @@
 
 import testing ;
 
+project : requirements
+    <library>/boost/format//boost_format
+    <library>/boost/algorithm//boost_algorithm
+    ;
+
 test-suite "format"
    :    [ run format_test1.cpp ]
         [ run format_test1.cpp : : : <toolset>msvc:<cxxflags>"/FIWindows.h" : format_test1_windows_h ]

tools/Jamfile.v2

@@ -7,12 +7,15 @@
 
 project
     : requirements
+	  <library>/boost/format//boost_format
 	  <define>_CRT_SECURE_NO_WARNINGS
 	  <link>static
 	;
 
-exe format_matrix 
+exe format_matrix
     : format_matrix.cpp
+	  /boost/array//boost_array
+	  /boost/filesystem//boost_filesystem
 	  /boost/program_options//boost_program_options
 	  /boost/system//boost_system
     ;