vcpkg/ports/boost-cmake/vcpkg-build.diff

diff --git a/include/BoostRoot.cmake b/include/BoostRoot.cmake
index e93f90712..063032e8a 100644
--- a/include/BoostRoot.cmake
+++ b/include/BoostRoot.cmake
@@ -21,7 +21,7 @@ set(__boost_incompatible_libraries "")
 
 # Define cache variables if root project
 
-if(CMAKE_SOURCE_DIR STREQUAL Boost_SOURCE_DIR)
+if(1)
 
   # --with-<library>
   set(BOOST_INCLUDE_LIBRARIES "" CACHE STRING
@@ -200,6 +200,7 @@ endfunction()
 function(__boost_scan_dependencies lib var)
 
   set(result "")
+  set(required_components "")
 
   if(EXISTS "${BOOST_SUPERPROJECT_SOURCE_DIR}/libs/${lib}/CMakeLists.txt")
 
@@ -209,7 +209,8 @@ function(__boost_scan_dependencies lib var)
     foreach(line IN LISTS data)
 
       if(line MATCHES "^[ ]*Boost::([A-Za-z0-9_]+)[ ]*$")
 
+        list(APPEND required_components ${CMAKE_MATCH_1})
         string(REGEX REPLACE "^numeric_" "numeric/" dep ${CMAKE_MATCH_1})
         list(APPEND result ${dep})
 
@@ -218,13 +218,18 @@ function(__boost_scan_dependencies lib var)
 
   endif()
 
+  list(REMOVE_DUPLICATES required_components)
+  list(REMOVE_ITEM required_components boost ${lib}) # due to property_tree and python
+  if(required_components)
+    find_package(Boost COMPONENTS ${required_components} REQUIRED CONFIG)
+  endif()
   set(${var} ${result} PARENT_SCOPE)
 
 endfunction()
 
 macro(__boost_add_header_only lib)
 
   if(TARGET "boost_${lib}" AND TARGET "Boost::${lib}")
 
     get_target_property(__boost_lib_type "boost_${lib}" TYPE)
 
@@ -251,13 +256,13 @@ while(__boost_libs_to_scan)
 
   list(REMOVE_DUPLICATES __boost_dependencies)
 
-  set(__boost_libs_to_scan ${__boost_dependencies})
 
   if(__boost_libs_to_scan)
     list(REMOVE_ITEM __boost_libs_to_scan ${__boost_include_libraries})
+    list(REMOVE_ITEM __boost_libs_to_scan ${__boost_lib})
   endif()
 
   list(APPEND __boost_include_libraries ${__boost_libs_to_scan})
 
 endwhile()
 
@@ -362,13 +367,14 @@ if(CMAKE_SKIP_INSTALL_RULES)
 
 endif()
 
+if(0)
 set(CONFIG_INSTALL_DIR "${BOOST_INSTALL_CMAKEDIR}/Boost-${BOOST_SUPERPROJECT_VERSION}")
 set(CONFIG_FILE_NAME "${CMAKE_CURRENT_LIST_DIR}/../config/BoostConfig.cmake")
 
 install(FILES "${CONFIG_FILE_NAME}" DESTINATION "${CONFIG_INSTALL_DIR}")
 
 set(CONFIG_VERSION_FILE_NAME "${CMAKE_CURRENT_BINARY_DIR}/tmpinst/BoostConfigVersion.cmake")
 
 if(NOT CMAKE_VERSION VERSION_LESS 3.14)
 
   write_basic_package_version_file("${CONFIG_VERSION_FILE_NAME}" COMPATIBILITY SameMajorVersion ARCH_INDEPENDENT)
@@ -385,3 +392,4 @@ else()
 endif()
 
 install(FILES "${CONFIG_VERSION_FILE_NAME}" DESTINATION "${CONFIG_INSTALL_DIR}")
+endif()
\ No newline at end of file