Do not use imported targets for Boost because they're continually broken. Part 2.

Author: ras0219-msft

Release/cmake/cpprest_find_boost.cmake

@@ -27,7 +27,24 @@ function(cpprest_find_boost)
   # FindBoost continually breaks imported targets whenever boost updates.
   if(1)
     target_include_directories(cpprestsdk_boost_internal INTERFACE "$<BUILD_INTERFACE:${Boost_INCLUDE_DIR}>")
-    target_link_libraries(cpprestsdk_boost_internal INTERFACE "$<BUILD_INTERFACE:${Boost_LIBRARIES}>")
+    set(_prev)
+    set(_libs)
+    foreach(_lib ${Boost_LIBRARIES})
+      if(_lib STREQUAL "optimized" OR _lib STREQUAL "debug")
+      else()
+        if(_prev STREQUAL "optimized")
+          list(APPEND _libs "$<$<NOT:$<CONFIG:Debug>>:${_lib}>")
+        elseif(_prev STREQUAL "debug")
+        list(APPEND _libs "$<$<CONFIG:Debug>:${_lib}>")
+        else()
+        list(APPEND _libs "${_lib}")
+        endif()
+      endif()
+      set(_prev "${_lib}")
+    endforeach()
+    message(STATUS "_libs: ${_libs}")
+    target_link_libraries(cpprestsdk_boost_internal INTERFACE "$<BUILD_INTERFACE:${_libs}>")
+
   else()
     if(ANDROID)
       target_link_libraries(cpprestsdk_boost_internal INTERFACE