diff --git a/cmake/modules/AddSwiftHostLibrary.cmake b/cmake/modules/AddSwiftHostLibrary.cmake
index 2a16fa5e667..3d7326b3483 100644
--- a/cmake/modules/AddSwiftHostLibrary.cmake
+++ b/cmake/modules/AddSwiftHostLibrary.cmake
@@ -97,6 +97,16 @@ function(add_swift_syntax_library name)
     $<$<COMPILE_LANGUAGE:Swift>:-color-diagnostics>
   )
 
+  if(BOOTSTRAPPING_MODE STREQUAL "CROSSCOMPILE")
+    target_compile_options(${name} PRIVATE
+      $<$<COMPILE_LANGUAGE:Swift>:-sdk;${SWIFT_SDK_${SWIFT_HOST_VARIANT_SDK}_ARCH_${SWIFT_HOST_VARIANT_ARCH}_PATH};>
+      $<$<COMPILE_LANGUAGE:Swift>:-resource-dir;${SWIFTLIB_DIR};>)
+    if(SWIFT_HOST_VARIANT_SDK STREQUAL "ANDROID" AND NOT "${SWIFT_ANDROID_NDK_PATH}" STREQUAL "")
+      swift_android_tools_path(${SWIFT_HOST_VARIANT_ARCH} tools_path)
+      target_compile_options(${name} PRIVATE $<$<COMPILE_LANGUAGE:Swift>:-tools-directory;${tools_path};>)
+    endif()
+  endif()
+
   if(LLVM_USE_LINKER)
     target_link_options(${name} PRIVATE
       "-use-ld=${LLVM_USE_LINKER}"