diff --git a/core/android_soong_config_vars.mk b/core/android_soong_config_vars.mk
index f66bdd9..5944e4a 100644
--- a/core/android_soong_config_vars.mk
+++ b/core/android_soong_config_vars.mk
@@ -30,9 +30,20 @@
 $(call soong_config_set_bool,ANDROID,BOARD_USES_RECOVERY_AS_BOOT,$(BOARD_USES_RECOVERY_AS_BOOT))
 $(call soong_config_set_bool,ANDROID,BOARD_MOVE_GSI_AVB_KEYS_TO_VENDOR_BOOT,$(BOARD_MOVE_GSI_AVB_KEYS_TO_VENDOR_BOOT))
 $(call add_soong_config_var,ANDROID,CHECK_DEV_TYPE_VIOLATIONS)
+ifneq (,$(BOARD_SYSTEM_EXT_PREBUILT_DIR))
+$(call soong_config_set_bool,ANDROID,HAS_BOARD_SYSTEM_EXT_PREBUILT_DIR,true)
+else
+$(call soong_config_set_bool,ANDROID,HAS_BOARD_SYSTEM_EXT_PREBUILT_DIR,false)
+endif
+ifneq (,$(BOARD_PRODUCT_PREBUILT_DIR))
+$(call soong_config_set_bool,ANDROID,HAS_BOARD_PRODUCT_PREBUILT_DIR,true)
+else
+$(call soong_config_set_bool,ANDROID,HAS_BOARD_PRODUCT_PREBUILT_DIR,false)
+endif
 $(call add_soong_config_var,ANDROID,PLATFORM_SEPOLICY_VERSION)
 $(call add_soong_config_var,ANDROID,PLATFORM_SEPOLICY_COMPAT_VERSIONS)
 $(call add_soong_config_var,ANDROID,PRODUCT_INSTALL_DEBUG_POLICY_TO_SYSTEM_EXT)
+$(call soong_config_set_bool,ANDROID,RELEASE_BOARD_API_LEVEL_FROZEN,$(RELEASE_BOARD_API_LEVEL_FROZEN))
 $(call add_soong_config_var,ANDROID,TARGET_DYNAMIC_64_32_DRMSERVER)
 $(call add_soong_config_var,ANDROID,TARGET_ENABLE_MEDIADRM_64)
 $(call add_soong_config_var,ANDROID,TARGET_DYNAMIC_64_32_MEDIASERVER)