diff --git a/core/config.mk b/core/config.mk
index 0f19dea83..0034c4324 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -390,6 +390,55 @@ endif
 endif
 endif
 
+# Set up PDK so we can use TARGET_BUILD_PDK to select prebuilt tools below
+.PHONY: pdk fusion
+pdk fusion: $(DEFAULT_GOAL)
+
+# What to build:
+# pdk fusion if:
+# 1) PDK_FUSION_PLATFORM_ZIP is passed in from the environment
+# or
+# 2) the platform.zip exists in the default location
+# or
+# 3) fusion is a command line build goal,
+#    PDK_FUSION_PLATFORM_ZIP is needed anyway, then do we need the 'fusion' goal?
+# otherwise pdk only if:
+# 1) pdk is a command line build goal
+# or
+# 2) TARGET_BUILD_PDK is passed in from the environment
+
+# if PDK_FUSION_PLATFORM_ZIP is specified, do not override.
+ifndef PDK_FUSION_PLATFORM_ZIP
+# Most PDK project paths should be using vendor/pdk/TARGET_DEVICE
+# but some legacy ones (e.g. mini_armv7a_neon generic PDK) were setup
+# with vendor/pdk/TARGET_PRODUCT.
+_pdk_fusion_default_platform_zip = $(strip \
+  $(wildcard vendor/pdk/$(TARGET_DEVICE)/$(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT)/platform/platform.zip) \
+  $(wildcard vendor/pdk/$(TARGET_DEVICE)/$(patsubst aosp_%,full_%,$(TARGET_PRODUCT))-$(TARGET_BUILD_VARIANT)/platform/platform.zip) \
+  $(wildcard vendor/pdk/$(TARGET_PRODUCT)/$(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT)/platform/platform.zip) \
+  $(wildcard vendor/pdk/$(TARGET_PRODUCT)/$(patsubst aosp_%,full_%,$(TARGET_PRODUCT))-$(TARGET_BUILD_VARIANT)/platform/platform.zip))
+ifneq (,$(_pdk_fusion_default_platform_zip))
+PDK_FUSION_PLATFORM_ZIP := $(word 1, $(_pdk_fusion_default_platform_zip))
+TARGET_BUILD_PDK := true
+endif # _pdk_fusion_default_platform_zip
+endif # !PDK_FUSION_PLATFORM_ZIP
+
+ifneq (,$(filter pdk fusion, $(MAKECMDGOALS)))
+TARGET_BUILD_PDK := true
+ifneq (,$(filter fusion, $(MAKECMDGOALS)))
+ifndef PDK_FUSION_PLATFORM_ZIP
+  $(error Specify PDK_FUSION_PLATFORM_ZIP to do a PDK fusion.)
+endif
+endif  # fusion
+endif  # pdk or fusion
+
+ifdef PDK_FUSION_PLATFORM_ZIP
+TARGET_BUILD_PDK := true
+ifeq (,$(wildcard $(PDK_FUSION_PLATFORM_ZIP)))
+  $(error Cannot find file $(PDK_FUSION_PLATFORM_ZIP).)
+endif
+endif
+
 #
 # Tools that are prebuilts for TARGET_BUILD_APPS
 #
diff --git a/core/dumpvar.mk b/core/dumpvar.mk
index c7fb8dbc6..797fdce89 100644
--- a/core/dumpvar.mk
+++ b/core/dumpvar.mk
@@ -84,5 +84,10 @@ $(info   HOST_CROSS_OS=$(HOST_CROSS_OS))
 $(info   HOST_BUILD_TYPE=$(HOST_BUILD_TYPE))
 $(info   BUILD_ID=$(BUILD_ID))
 $(info   OUT_DIR=$(OUT_DIR))
+ifeq ($(TARGET_BUILD_PDK),true)
+$(info   TARGET_BUILD_PDK=$(TARGET_BUILD_PDK))
+$(info   PDK_FUSION_PLATFORM_ZIP=$(PDK_FUSION_PLATFORM_ZIP))
+endif
+
 $(info ============================================)
 endif
diff --git a/core/pdk_config.mk b/core/pdk_config.mk
index 95eb0cc55..bd72a0636 100644
--- a/core/pdk_config.mk
+++ b/core/pdk_config.mk
@@ -1,47 +1,4 @@
 # This file defines the rule to fuse the platform.zip into the current PDK build.
-
-.PHONY: pdk fusion
-pdk fusion: $(DEFAULT_GOAL)
-
-# What to build:
-# pdk fusion if:
-# 1) PDK_FUSION_PLATFORM_ZIP is passed in from the environment
-# or
-# 2) the platform.zip exists in the default location
-# or
-# 3) fusion is a command line build goal,
-#    PDK_FUSION_PLATFORM_ZIP is needed anyway, then do we need the 'fusion' goal?
-# otherwise pdk only if:
-# 1) pdk is a command line build goal
-# or
-# 2) TARGET_BUILD_PDK is passed in from the environment
-
-# if PDK_FUSION_PLATFORM_ZIP is specified, do not override.
-ifndef PDK_FUSION_PLATFORM_ZIP
-# Most PDK project paths should be using vendor/pdk/TARGET_DEVICE
-# but some legacy ones (e.g. mini_armv7a_neon generic PDK) were setup
-# with vendor/pdk/TARGET_PRODUCT.
-_pdk_fusion_default_platform_zip = $(strip \
-  $(wildcard vendor/pdk/$(TARGET_DEVICE)/$(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT)/platform/platform.zip) \
-  $(wildcard vendor/pdk/$(TARGET_DEVICE)/$(patsubst aosp_%,full_%,$(TARGET_PRODUCT))-$(TARGET_BUILD_VARIANT)/platform/platform.zip) \
-  $(wildcard vendor/pdk/$(TARGET_PRODUCT)/$(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT)/platform/platform.zip) \
-  $(wildcard vendor/pdk/$(TARGET_PRODUCT)/$(patsubst aosp_%,full_%,$(TARGET_PRODUCT))-$(TARGET_BUILD_VARIANT)/platform/platform.zip))
-ifneq (,$(_pdk_fusion_default_platform_zip))
-PDK_FUSION_PLATFORM_ZIP := $(word 1, $(_pdk_fusion_default_platform_zip))
-TARGET_BUILD_PDK := true
-$(info $(PDK_FUSION_PLATFORM_ZIP) found, do a PDK fusion build.)
-endif # _pdk_fusion_default_platform_zip
-endif # !PDK_FUSION_PLATFORM_ZIP
-
-ifneq (,$(filter pdk fusion, $(MAKECMDGOALS)))
-TARGET_BUILD_PDK := true
-ifneq (,$(filter fusion, $(MAKECMDGOALS)))
-ifndef PDK_FUSION_PLATFORM_ZIP
-  $(error Specify PDK_FUSION_PLATFORM_ZIP to do a PDK fusion.)
-endif
-endif  # fusion
-endif  # pdk or fusion
-
 PDK_PLATFORM_JAVA_ZIP_JAVA_TARGET_LIB_DIR :=
 PDK_PLATFORM_JAVA_ZIP_JAVA_HOST_LIB_DIR := \
 	host/common/obj/JAVA_LIBRARIES/bouncycastle-host_intermediates
@@ -92,11 +49,6 @@ endif
 endif # PDK
 
 ifdef PDK_FUSION_PLATFORM_ZIP
-TARGET_BUILD_PDK := true
-ifeq (,$(wildcard $(PDK_FUSION_PLATFORM_ZIP)))
-  $(error Cannot find file $(PDK_FUSION_PLATFORM_ZIP).)
-endif
-
 _pdk_fusion_intermediates := $(call intermediates-dir-for, PACKAGING, pdk_fusion)
 _pdk_fusion_stamp := $(_pdk_fusion_intermediates)/pdk_fusion.stamp