Add support for modular build structure.

build.jam

@@ -0,0 +1,55 @@
+# 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/atomic//boost_atomic
+    /boost/config//boost_config
+    /boost/core//boost_core
+    /boost/date_time//boost_date_time
+    /boost/exception//boost_exception
+    /boost/filesystem//boost_filesystem
+    /boost/function_types//boost_function_types
+    /boost/fusion//boost_fusion
+    /boost/intrusive//boost_intrusive
+    /boost/io//boost_io
+    /boost/iterator//boost_iterator
+    /boost/move//boost_move
+    /boost/mpl//boost_mpl
+    /boost/optional//boost_optional
+    /boost/parameter//boost_parameter
+    /boost/phoenix//boost_phoenix
+    /boost/preprocessor//boost_preprocessor
+    /boost/property_tree//boost_property_tree
+    /boost/proto//boost_proto
+    /boost/range//boost_range
+    /boost/regex//boost_regex
+    /boost/smart_ptr//boost_smart_ptr
+    /boost/spirit//boost_spirit
+    /boost/system//boost_system
+    /boost/thread//boost_thread
+    /boost/throw_exception//boost_throw_exception
+    /boost/type_index//boost_type_index
+    /boost/type_traits//boost_type_traits
+    /boost/utility//boost_utility
+    /boost/winapi//boost_winapi
+    /boost/xpressive//boost_xpressive ;
+
+project /boost/log
+    : common-requirements
+        <include>include
+    ;
+
+explicit
+    [ alias boost_log : build//boost_log ]
+    [ alias boost_log_setup : build//boost_log_setup ]
+    [ alias all : boost_log boost_log_setup example test ]
+    ;
+
+call-if : boost-library log
+    : install boost_log boost_log_setup
+    ;

build/Jamfile.v2

@@ -12,32 +12,29 @@ import path ;
 import project ;
 import feature ;
 import configure ;
+import-search /boost/config/checks ;
 import config : requires ;
 import log-arch-config ;
 import log-platform-config ;
 import log-build-config ;
+import-search /boost/predef/tools/check ;
+import predef ;
 
 using mc ;
 
-local here = [ modules.binding $(__name__) ] ;
-
-project.push-current [ project.current ] ;
-project.load [ path.join [ path.make $(here:D) ] ../config/x86-ext ] ;
-project.pop-current ;
-
 # Windows libs
-lib psapi ;
-lib advapi32 ;
-lib secur32 ;
-lib ws2_32 ;
-lib mswsock ;
+searched-lib psapi ;
+searched-lib advapi32 ;
+searched-lib secur32 ;
+searched-lib ws2_32 ;
+searched-lib mswsock ;
 explicit psapi advapi32 secur32 ws2_32 mswsock ;
 
 # UNIX libs
-lib rt ;
-lib socket ;
-lib nsl ;
-lib ipv6 ;
+searched-lib rt ;
+searched-lib socket ;
+searched-lib nsl ;
+searched-lib ipv6 ;
 explicit rt socket nsl ipv6 ;
 
 local log_cxx_public_requirements = [ requires
@@ -57,9 +54,18 @@ local log_setup_cxx_public_requirements = [ requires
         cxx11_lambdas
     ] ;
 
-project boost/log
+constant boost_dependencies_private :
+    /boost/align//boost_align
+    /boost/asio//boost_asio
+    /boost/interprocess//boost_interprocess
+    /boost/predef//boost_predef
+    /boost/random//boost_random ;
+
+project
     : source-location ../src
+    : common-requirements <library>$(boost_dependencies)
     : requirements
+        <library>$(boost_dependencies_private)
         <conditional>@log-arch-config.check-instruction-set
         <conditional>@log-build-config.check-atomic-int32
         <conditional>@log-build-config.select-regex-backend
@@ -129,6 +135,10 @@ project boost/log
         <target-os>freebsd:<library>rt
         <target-os>qnxnto:<library>socket
         <toolset>pgi:<library>rt
+
+        # Set these to computed values according to the build.
+        [ predef.address-model ]
+        [ predef.architecture ]
     : usage-requirements
         <toolset>clang:<cxxflags>-Wno-bind-to-temporary-copy
         <toolset>clang:<cxxflags>-Wno-unused-function
@@ -218,16 +228,16 @@ rule select-arch-specific-sources ( properties * )
 {
     local result ;
 
-    if x86 in [ log-arch-config.deduce-architecture $(properties) ]
+    if <architecture>x86 in $(properties)
     {
-        local has_ssse3 = [ configure.builds /boost/log/x86-extensions//ssse3 : $(properties) : "compiler supports SSSE3" ] ;
+        local has_ssse3 = [ configure.builds /boost/log/config/x86-ext//ssse3 : $(properties) : "compiler supports SSSE3" ] ;
         if $(has_ssse3)
         {
             result += <define>BOOST_LOG_USE_SSSE3 ;
             result += <source>$(BOOST_LOG_COMMON_SSSE3_SRC) ;
         }
 
-        local has_avx2 = [ configure.builds /boost/log/x86-extensions//avx2 : $(properties) : "compiler supports AVX2" ] ;
+        local has_avx2 = [ configure.builds /boost/log/config/x86-ext//avx2 : $(properties) : "compiler supports AVX2" ] ;
         if $(has_avx2)
         {
             result += <define>BOOST_LOG_USE_AVX2 ;
@@ -308,6 +318,7 @@ lib boost_log
     : ## usage-requirements ##
         <link>shared:<define>BOOST_LOG_DYN_LINK=1
         <threading>single:<define>BOOST_LOG_NO_THREADS
+        <define>BOOST_LOG_NO_LIB=1
         $(log_cxx_public_requirements)
     ;
 
@@ -351,7 +362,6 @@ lib boost_log_setup
     : ## usage-requirements ##
         <link>shared:<define>BOOST_LOG_SETUP_DYN_LINK=1
         <threading>single:<define>BOOST_LOG_NO_THREADS
+        <define>BOOST_LOG_SETUP_NO_LIB=1
         $(log_setup_cxx_public_requirements)
     ;
-
-boost-install boost_log boost_log_setup ;

build/log-arch-config.jam

@@ -13,68 +13,22 @@ import path ;
 import property ;
 import feature ;
 
-local here = [ modules.binding $(__name__) ] ;
-
-project.push-current [ project.current ] ;
-project.load [ path.join [ path.make $(here:D) ] ../../config/checks/architecture ] ;
-project.pop-current ;
-
 rule deduce-address-model ( properties * )
 {
-    local address_model = [ feature.get-values "address-model" : $(properties) ] ;
-    if $(address_model)
-    {
-        return $(address_model) ;
-    }
-    else
-    {
-        if [ configure.builds /boost/architecture//32 : $(properties) : 32-bit ]
-        {
-            return 32 ;
-        }
-        else if [ configure.builds /boost/architecture//64 : $(properties) : 64-bit ]
-        {
-            return 64 ;
-        }
-    }
+    # The address-model is always set to a deduced value using the predef.address-model checks.
+    return [ feature.get-values <address-model> : $(properties) ] ;
 }
 
 rule deduce-architecture ( properties * )
 {
-    local architecture = [ feature.get-values "architecture" : $(properties) ] ;
-    if $(architecture)
-    {
-        return $(architecture) ;
-    }
-    else
-    {
-        if [ configure.builds /boost/architecture//x86 : $(properties) : x86 ]
-        {
-            return x86 ;
-        }
-        else if [ configure.builds /boost/architecture//arm : $(properties) : arm ]
-        {
-            return arm ;
-        }
-        else if [ configure.builds /boost/architecture//mips : $(properties) : mips ]
-        {
-            return mips ;
-        }
-        else if [ configure.builds /boost/architecture//power : $(properties) : power ]
-        {
-            return power ;
-        }
-        else if [ configure.builds /boost/architecture//sparc : $(properties) : sparc ]
-        {
-            return sparc ;
-        }
-    }
+    # The architecture is always set to a deduced value using the predef.architecture checks.
+    return [ feature.get-values <architecture> : $(properties) ] ;
 }
 
 rule deduce-instruction-set ( properties * )
 {
     local result ;
-    local instruction_set = [ feature.get-values "instruction-set" : $(properties) ] ;
+    local instruction_set = [ feature.get-values <instruction-set> : $(properties) ] ;
 
     if $(instruction_set)
     {
@@ -95,7 +49,6 @@ rule deduce-instruction-set ( properties * )
 rule ssse3-flags ( properties * )
 {
     local result ;
-
     if <toolset>intel in $(properties)
     {
         if <toolset-intel:platform>win in $(properties)
@@ -111,7 +64,7 @@ rule ssse3-flags ( properties * )
     {
         # MSVC doesn't really care about these switches, all SSE intrinsics are always available, but still...
         # Also 64 bit MSVC doesn't have the /arch:SSE2 switch as it is the default.
-        if 32 in [ deduce-address-model $(properties) ]
+        if <address-model>32 in $(properties)
         {
             result = <cxxflags>"/arch:SSE2" ;
         }

build/log-build-config.jam

@@ -12,16 +12,6 @@ import path ;
 import property ;
 import feature ;
 
-local here = [ modules.binding $(__name__) ] ;
-
-project.push-current [ project.current ] ;
-project.load [ path.join [ path.make $(here:D) ] ../config/message-compiler ] ;
-project.load [ path.join [ path.make $(here:D) ] ../config/pthread-mutex-robust ] ;
-project.load [ path.join [ path.make $(here:D) ] ../config/native-syslog ] ;
-project.load [ path.join [ path.make $(here:D) ] ../config/atomic-int32 ] ;
-project.load [ path.join [ path.make $(here:D) ] ../config/regex-header-only ] ;
-project.pop-current ;
-
 rule has-config-flag ( flag : properties * )
 {
     if ( "<define>$(flag)" in $(properties) || "<define>$(flag)=1" in $(properties) )
@@ -38,7 +28,7 @@ rule check-regex-header-only ( properties * )
 {
     local result ;
 
-    local has_regex_header_only = [ configure.builds /boost/log/regex-header-only//regex_header_only : $(properties) : "Boost.Regex is header-only" ] ;
+    local has_regex_header_only = [ configure.builds /boost/log/config/regex-header-only//regex_header_only : $(properties) : "Boost.Regex is header-only" ] ;
     if ! $(has_regex_header_only)
     {
         result = <library>/boost/regex//boost_regex ;
@@ -51,7 +41,7 @@ rule check-atomic-int32 ( properties * )
 {
     local result ;
 
-    local has_atomic_int32 = [ configure.builds /boost/log/atomic-int32//atomic_int32 : $(properties) : "native atomic int32 supported" ] ;
+    local has_atomic_int32 = [ configure.builds /boost/log/config/atomic-int32//atomic_int32 : $(properties) : "native atomic int32 supported" ] ;
     if ! $(has_atomic_int32)
     {
         result = <define>BOOST_LOG_WITHOUT_IPC ;
@@ -64,7 +54,7 @@ rule check-pthread-mutex-robust ( properties * )
 {
     local result ;
 
-    local has_pthread_mutex_robust = [ configure.builds /boost/log/pthread-mutex-robust//pthread_mutex_robust : $(properties) : "pthread supports robust mutexes" ] ;
+    local has_pthread_mutex_robust = [ configure.builds /boost/log/config/pthread-mutex-robust//pthread_mutex_robust : $(properties) : "pthread supports robust mutexes" ] ;
     if $(has_pthread_mutex_robust)
     {
         result = <define>BOOST_LOG_HAS_PTHREAD_MUTEX_ROBUST ;
@@ -79,7 +69,7 @@ rule check-native-syslog ( properties * )
 
     if ! [ has-config-flag BOOST_LOG_WITHOUT_SYSLOG : $(properties) ]
     {
-        local has_native_syslog = [ configure.builds /boost/log/native-syslog//native_syslog : $(properties) : "native syslog supported" ] ;
+        local has_native_syslog = [ configure.builds /boost/log/config/native-syslog//native_syslog : $(properties) : "native syslog supported" ] ;
         if $(has_native_syslog)
         {
             result = <define>BOOST_LOG_USE_NATIVE_SYSLOG ;
@@ -97,7 +87,7 @@ rule check-message-compiler ( properties * )
     {
         if ! [ has-config-flag BOOST_LOG_WITHOUT_EVENT_LOG : $(properties) ]
         {
-            local has_mc = [ configure.builds /boost/log/message-compiler//test-availability : $(properties) : "has message compiler" ] ;
+            local has_mc = [ configure.builds /boost/log/config/message-compiler//test-availability : $(properties) : "has message compiler" ] ;
             if ! $(has_mc)
             {
                 result = <define>BOOST_LOG_WITHOUT_EVENT_LOG ;

build/log-platform-config.jam

@@ -12,12 +12,6 @@ import path ;
 import property ;
 import feature ;
 
-local here = [ modules.binding $(__name__) ] ;
-
-project.push-current [ project.current ] ;
-project.load [ path.join [ path.make $(here:D) ] ../config/xopen-source-600 ] ;
-project.pop-current ;
-
 rule set-platform-defines ( properties * )
 {
     local result ;
@@ -49,7 +43,7 @@ rule set-platform-defines ( properties * )
     {
         # Solaris headers are broken and cannot be included in C++03 when _XOPEN_SOURCE=600. At the same time, they cannot be included with _XOPEN_SOURCE=500 in C++11 and later.
         # This is because the system headers check the C language version and error out if the version does not match. We have to test if we can request _XOPEN_SOURCE=600.
-        if [ configure.builds /boost/log/xopen-source-600//xopen_source_600 : $(properties) : xopen-source-600-supported ]
+        if [ configure.builds /boost/log/config/xopen-source-600//xopen_source_600 : $(properties) : xopen-source-600-supported ]
         {
             result += <define>_XOPEN_SOURCE=600 ;
         }

config/atomic-int32/Jamfile.jam

@@ -6,9 +6,9 @@
 #
 
 import project ;
-import log-platform-config ;
+import ../../build/log-platform-config ;
 
-project /boost/log/atomic-int32
+project
     : source-location .
     : requirements
         <conditional>@log-platform-config.set-platform-defines

config/build.jam

@@ -0,0 +1,14 @@
+# Copyright René Ferdinand Rivera Morell
+# 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/predef/tools ;
+import predef ;
+
+project
+    : requirements
+        # Set these to computed values according to the build.
+        [ predef.address-model ]
+        [ predef.architecture ]
+    ;

config/message-compiler/Jamfile.jam

@@ -9,7 +9,7 @@ import project ;
 import log-platform-config ;
 using mc ;
 
-project /boost/log/message-compiler
+project
     : source-location ../../src
     : requirements
         <conditional>@log-platform-config.set-platform-defines

config/native-syslog/Jamfile.jam

@@ -8,7 +8,7 @@
 import project ;
 import log-platform-config ;
 
-project /boost/log/native-syslog
+project
     : source-location .
     : requirements
         <conditional>@log-platform-config.set-platform-defines

config/pthread-mutex-robust/Jamfile.jam

@@ -8,7 +8,7 @@
 import project ;
 import log-platform-config ;
 
-project /boost/log/pthread-mutex-robust
+project
     : source-location .
     : requirements
         <conditional>@log-platform-config.set-platform-defines