diff --git a/data/keyboards/Android.mk b/data/keyboards/Android.mk
index a66a884..898efe8 100644
--- a/data/keyboards/Android.mk
+++ b/data/keyboards/Android.mk
@@ -21,17 +21,21 @@
 # Validate all key maps.
 include $(CLEAR_VARS)
 
-validatekeymaps := $(HOST_OUT_EXECUTABLES)/validatekeymaps$(HOST_EXECUTABLE_SUFFIX)
-files := \
-    $(foreach file,$(keylayouts),frameworks/base/data/keyboards/$(file)) \
-    $(foreach file,$(keycharmaps),frameworks/base/data/keyboards/$(file)) \
-    $(foreach file,$(keyconfigs),frameworks/base/data/keyboards/$(file))
-
 LOCAL_MODULE := validate_framework_keymaps
-LOCAL_MODULE_TAGS := optional
-LOCAL_REQUIRED_MODULES := validatekeymaps
+intermediates := $(call intermediates-dir-for,ETC,$(LOCAL_MODULE),,COMMON)
+LOCAL_BUILT_MODULE := $(intermediates)/stamp
 
-validate_framework_keymaps: $(files)
-	$(hide) $(validatekeymaps) $(files)
+validatekeymaps := $(HOST_OUT_EXECUTABLES)/validatekeymaps$(HOST_EXECUTABLE_SUFFIX)
+$(LOCAL_BUILT_MODULE): PRIVATE_VALIDATEKEYMAPS := $(validatekeymaps)
+$(LOCAL_BUILT_MODULE) : $(framework_keylayouts) $(framework_keycharmaps) $(framework_keyconfigs) | $(validatekeymaps)
+	$(hide) $(PRIVATE_VALIDATEKEYMAPS) $^
+	$(hide) mkdir -p $(dir $@) && touch $@
 
-include $(BUILD_PHONY_PACKAGE)
+# Run validatekeymaps uncondionally for platform build.
+droidcore all_modules : $(LOCAL_BUILT_MODULE)
+
+# Reset temp vars.
+validatekeymaps :=
+framework_keylayouts :=
+framework_keycharmaps :=
+framework_keyconfigs :=
diff --git a/data/keyboards/common.mk b/data/keyboards/common.mk
index 87c2ef5..d75b691 100644
--- a/data/keyboards/common.mk
+++ b/data/keyboards/common.mk
@@ -15,8 +15,8 @@
 # This is the list of framework provided keylayouts and key character maps to include.
 # Used by Android.mk and keyboards.mk.
 
-keylayouts := $(notdir $(wildcard $(LOCAL_PATH)/*.kl))
+framework_keylayouts := $(wildcard $(LOCAL_PATH)/*.kl)
 
-keycharmaps := $(notdir $(wildcard $(LOCAL_PATH)/*.kcm))
+framework_keycharmaps := $(wildcard $(LOCAL_PATH)/*.kcm)
 
-keyconfigs := $(notdir $(wildcard $(LOCAL_PATH)/*.idc))
+framework_keyconfigs := $(wildcard $(LOCAL_PATH)/*.idc)
diff --git a/data/keyboards/keyboards.mk b/data/keyboards/keyboards.mk
index c964961..d545241 100644
--- a/data/keyboards/keyboards.mk
+++ b/data/keyboards/keyboards.mk
@@ -16,11 +16,11 @@
 
 include $(LOCAL_PATH)/common.mk
 
-PRODUCT_COPY_FILES := $(foreach file,$(keylayouts),\
-    frameworks/base/data/keyboards/$(file):system/usr/keylayout/$(file))
+PRODUCT_COPY_FILES := $(foreach file,$(framework_keylayouts),\
+    $(file):system/usr/keylayout/$(file))
 
-PRODUCT_COPY_FILES += $(foreach file,$(keycharmaps),\
-    frameworks/base/data/keyboards/$(file):system/usr/keychars/$(file))
+PRODUCT_COPY_FILES += $(foreach file,$(framework_keycharmaps),\
+    $(file):system/usr/keychars/$(file))
 
-PRODUCT_COPY_FILES += $(foreach file,$(keyconfigs),\
-    frameworks/base/data/keyboards/$(file):system/usr/idc/$(file))
+PRODUCT_COPY_FILES += $(foreach file,$(framework_keyconfigs),\
+    $(file):system/usr/idc/$(file))
diff --git a/packages/InputDevices/Android.mk b/packages/InputDevices/Android.mk
index 095655c..f537022 100644
--- a/packages/InputDevices/Android.mk
+++ b/packages/InputDevices/Android.mk
@@ -30,14 +30,20 @@
 # Validate all key maps.
 include $(CLEAR_VARS)
 
-validatekeymaps := $(HOST_OUT_EXECUTABLES)/validatekeymaps$(HOST_EXECUTABLE_SUFFIX)
-files := frameworks/base/packages/InputDevices/res/raw/*.kcm
-
 LOCAL_MODULE := validate_input_devices_keymaps
-LOCAL_MODULE_TAGS := optional
-LOCAL_REQUIRED_MODULES := validatekeymaps
+intermediates := $(call intermediates-dir-for,ETC,$(LOCAL_MODULE),,COMMON)
+LOCAL_BUILT_MODULE := $(intermediates)/stamp
 
-validate_input_devices_keymaps: $(files)
-	$(hide) $(validatekeymaps) $(files)
+validatekeymaps := $(HOST_OUT_EXECUTABLES)/validatekeymaps$(HOST_EXECUTABLE_SUFFIX)
+input_devices_keymaps := $(wildcard $(LOCAL_PATH)/res/raw/*.kcm)
+$(LOCAL_BUILT_MODULE): PRIVATE_VALIDATEKEYMAPS := $(validatekeymaps)
+$(LOCAL_BUILT_MODULE) : $(input_devices_keymaps) | $(validatekeymaps)
+	$(hide) $(PRIVATE_VALIDATEKEYMAPS) $^
+	$(hide) mkdir -p $(dir $@) && touch $@
 
-include $(BUILD_PHONY_PACKAGE)
+# Run validatekeymaps unconditionally for platform build.
+droidcore all_modules : $(LOCAL_BUILT_MODULE)
+
+# Reset temp vars.
+validatekeymaps :=
+input_devices_keymaps :=