Cherry-pick bug fixes from master.

1. Set correct aidl_preprocess_import for LOCAL_SDK_VERSION current.
2. Set correct PRIVATE_BOOTCLASSPATH for non-empty LOCAL_SDK_VERSION.

Change-Id: Iff8e266931434863521bfa4621767bed31d31cc0
diff --git a/core/base_rules.mk b/core/base_rules.mk
index 77135ae..3f343e2 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -189,13 +189,15 @@
 aidl_preprocess_import :=
 LOCAL_SDK_VERSION:=$(strip $(LOCAL_SDK_VERSION))
 ifdef LOCAL_SDK_VERSION
-ifneq ($(LOCAL_SDK_VERSION),current)
-aidl_preprocess_import := -p$(HISTORICAL_SDK_VERSIONS_ROOT)/$(LOCAL_SDK_VERSION)/framework.aidl
+ifeq ($(LOCAL_SDK_VERSION),current)
+  aidl_preprocess_import := $(TARGET_OUT_COMMON_INTERMEDIATES)/framework.aidl
+else
+  aidl_preprocess_import := $(HISTORICAL_SDK_VERSIONS_ROOT)/$(LOCAL_SDK_VERSION)/framework.aidl
 endif # !current
 endif # LOCAL_SDK_VERSION
-$(aidl_java_sources): PRIVATE_AIDL_FLAGS := -b $(aidl_preprocess_import) -I$(LOCAL_PATH) -I$(LOCAL_PATH)/src $(addprefix -I,$(LOCAL_AIDL_INCLUDES))
+$(aidl_java_sources): PRIVATE_AIDL_FLAGS := -b $(addprefix -p,$(aidl_preprocess_import)) -I$(LOCAL_PATH) -I$(LOCAL_PATH)/src $(addprefix -I,$(LOCAL_AIDL_INCLUDES))
 
-$(aidl_java_sources): $(intermediates.COMMON)/src/%.java: $(TOPDIR)$(LOCAL_PATH)/%.aidl $(PRIVATE_ADDITIONAL_DEPENDENCIES) $(AIDL)
+$(aidl_java_sources): $(intermediates.COMMON)/src/%.java: $(TOPDIR)$(LOCAL_PATH)/%.aidl $(PRIVATE_ADDITIONAL_DEPENDENCIES) $(AIDL) $(aidl_preprocess_import)
 	$(transform-aidl-to-java)
 -include $(aidl_java_sources:%.java=%.P)
 
@@ -320,8 +322,14 @@
 ifeq ($(my_prefix),TARGET_)
 ifeq ($(LOCAL_SDK_VERSION),)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH := -bootclasspath $(call java-lib-files,core)
-endif
-endif
+else
+ifeq ($(LOCAL_SDK_VERSION),current)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH := -bootclasspath $(call java-lib-files,android_stubs_current)
+else
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH := -bootclasspath $(call java-lib-files,sdk_v$(LOCAL_SDK_VERSION))
+endif # current
+endif # LOCAL_SDK_VERSION
+endif # TARGET_
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_RESOURCE_DIR := $(LOCAL_RESOURCE_DIR)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_EXTRA_JAR_ARGS := $(extra_jar_args)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ASSET_DIR := $(LOCAL_ASSET_DIR)