updated build system

cmake/libraries/boost.cmake

@@ -46,68 +46,72 @@ if(PROJECT_ENABLE_BOOST)
       ${Boost_LIBRARIES}
     )
   elseif(NOT PROJECT_IS_MINGW OR CMAKE_HOST_WIN32)
-    if(PROJECT_CMAKE_BUILD_TYPE STREQUAL "Debug")
-      set(BOOST_BUILD_TYPE_LOWER debug)
-    else()
-      set(BOOST_BUILD_TYPE_LOWER release)
+    if (PROJECT_ENABLE_LIBBITCOIN_SYSTEM OR NOT CMAKE_HOST_WIN32)
+      if(PROJECT_CMAKE_BUILD_TYPE STREQUAL "Debug")
+        set(BOOST_BUILD_TYPE_LOWER debug)
+      else()
+        set(BOOST_BUILD_TYPE_LOWER release)
+      endif()
+
+      if(PROJECT_IS_ARM64)
+        set(BOOST_ARCH arm)
+      else()
+        set(BOOST_ARCH x86)
+      endif()
+
+      if(PROJECT_STATIC_LINK)
+        set(BOOST_LINK static)
+      else()
+        set(BOOST_LINK "static,shared")
+      endif()
+
+      set(BOOST_BUILD_ARGS
+        --openssldir=$ENV{OPENSSL_ROOT_DIR}
+        --prefix=${PROJECT_EXTERNAL_BUILD_ROOT}
+        address-model=64
+        architecture=${BOOST_ARCH}
+        cxxstd=20
+        cxxstd-dialect=gnu
+        cxxflags=-std=gnu++${CMAKE_CXX_STANDARD}
+        cxxstd=${CMAKE_CXX_STANDARD}
+        define=BOOST_ASIO_HAS_STD_STRING_VIEW
+        define=BOOST_SYSTEM_NO_DEPRECATED
+        link=${BOOST_LINK}
+        linkflags=-std=gnu++${CMAKE_CXX_STANDARD}
+        threading=multi
+        variant=${BOOST_BUILD_TYPE_LOWER}
+      )
+
+      if(PROJECT_ENABLE_LIBBITCOIN_SYSTEM)
+        set(BOOST_URL_HASH SHA256=${BOOST2_HASH})
+      else()
+        set(BOOST_URL_HASH SHA256=${BOOST_HASH})
+      endif()
+
+      ExternalProject_Add(boost_project
+        PREFIX external
+        URL ${PROJECT_3RD_PARTY_DIR}/boost_${BOOST_MAJOR_VERSION}_${BOOST_MINOR_VERSION}_${BOOST_PATCH_VERSION}.tar.gz
+        URL_HASH ${BOOST_URL_HASH}
+        BUILD_IN_SOURCE 1
+        LIST_SEPARATOR |
+        CONFIGURE_COMMAND ./bootstrap.sh
+          --with-libraries=atomic,chrono,date_time,filesystem,iostreams,locale,log,program_options,random,regex,serialization,system,test,thread
+        BUILD_COMMAND
+          ./b2
+          -j1
+          ${BOOST_BUILD_ARGS}
+        INSTALL_COMMAND
+          ./b2
+          -j1
+          ${BOOST_BUILD_ARGS}
+          install
+      )
+
+      list(APPEND PROJECT_DEPENDENCIES boost_project)
+
+      if (NOT CMAKE_HOST_WIN32)
+        add_dependencies(boost_project openssl_project)
+      endif()
     endif()
-
-    if(PROJECT_IS_ARM64)
-      set(BOOST_ARCH arm)
-    else()
-      set(BOOST_ARCH x86)
-    endif()
-
-    if(PROJECT_STATIC_LINK)
-      set(BOOST_LINK static)
-    else()
-      set(BOOST_LINK "static,shared")
-    endif()
-
-    set(BOOST_BUILD_ARGS
-      --openssldir=$ENV{OPENSSL_ROOT_DIR}
-      --prefix=${PROJECT_EXTERNAL_BUILD_ROOT}
-      address-model=64
-      architecture=${BOOST_ARCH}
-      cxxstd=20
-      cxxstd-dialect=gnu
-      cxxflags=-std=gnu++${CMAKE_CXX_STANDARD}
-      cxxstd=${CMAKE_CXX_STANDARD}
-      define=BOOST_ASIO_HAS_STD_STRING_VIEW
-      define=BOOST_SYSTEM_NO_DEPRECATED
-      link=${BOOST_LINK}
-      linkflags=-std=gnu++${CMAKE_CXX_STANDARD}
-      threading=multi
-      variant=${BOOST_BUILD_TYPE_LOWER}
-    )
-
-    if(PROJECT_ENABLE_LIBBITCOIN_SYSTEM)
-      set(BOOST_URL_HASH SHA256=${BOOST2_HASH})
-    else()
-      set(BOOST_URL_HASH SHA256=${BOOST_HASH})
-    endif()
-
-    ExternalProject_Add(boost_project
-      PREFIX external
-      URL ${PROJECT_3RD_PARTY_DIR}/boost_${BOOST_MAJOR_VERSION}_${BOOST_MINOR_VERSION}_${BOOST_PATCH_VERSION}.tar.gz
-      URL_HASH ${BOOST_URL_HASH}
-      BUILD_IN_SOURCE 1
-      LIST_SEPARATOR |
-      CONFIGURE_COMMAND ./bootstrap.sh
-        --with-libraries=atomic,chrono,date_time,filesystem,iostreams,locale,log,program_options,random,regex,serialization,system,test,thread
-      BUILD_COMMAND
-        ./b2
-        -j1
-        ${BOOST_BUILD_ARGS}
-      INSTALL_COMMAND
-        ./b2
-        -j1
-        ${BOOST_BUILD_ARGS}
-        install
-    )
-
-    list(APPEND PROJECT_DEPENDENCIES boost_project)
-
-    add_dependencies(boost_project openssl_project)
   endif()
 endif()