diff --git a/core/clang/config.mk b/core/clang/config.mk
index 7a513c6..c471f7e 100644
--- a/core/clang/config.mk
+++ b/core/clang/config.mk
@@ -6,13 +6,8 @@
 WITHOUT_HOST_CLANG := true
 endif
 
-ifeq (true,$(FORCE_BUILD_LLVM_COMPONENTS))
-LLVM_PREBUILTS_PATH := $(BUILD_OUT_EXECUTABLES)
-LLVM_PREBUILTS_HEADER_PATH := external/clang/lib/include
-else
 LLVM_PREBUILTS_PATH := prebuilts/clang/$(BUILD_OS)-x86/host/3.4/bin
 LLVM_PREBUILTS_HEADER_PATH := prebuilts/clang/$(BUILD_OS)-x86/host/3.4/lib/clang/3.4/include/
-endif
 
 CLANG := $(LLVM_PREBUILTS_PATH)/clang$(BUILD_EXECUTABLE_SUFFIX)
 CLANG_CXX := $(LLVM_PREBUILTS_PATH)/clang++$(BUILD_EXECUTABLE_SUFFIX)
diff --git a/core/config.mk b/core/config.mk
index 9b9923a..6311e68 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -456,7 +456,7 @@
 endif
 
 DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES := default
-ifneq (,$(filter $(TARGET_CPU_VARIANT),cortex-a15 krait))
+ifneq (,$(filter $(TARGET_CPU_VARIANT),cortex-a7 cortex-a15 krait))
 DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES := div
 endif
 
diff --git a/core/definitions.mk b/core/definitions.mk
index a449f0e..107813b 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -426,7 +426,7 @@
     $(eval _idf2ndArchPrefix := $(if $(call directory_is_64_bit_blacklisted,$(LOCAL_PATH))$(strip $(5)),$(TARGET_2ND_ARCH_VAR_PREFIX))) \
     $(if $(filter $(_idfPrefix)-$(_idfClass),$(COMMON_MODULE_CLASSES))$(4), \
         $(eval _idfIntBase := $($(_idfPrefix)_OUT_COMMON_INTERMEDIATES)) \
-      ,$(if $(filter $(_idfPrefix)-$(_idfClass),TARGET-SHARED_LIBRARIES TARGET-STATIC_LIBRARIES TARGET-EXECUTABLES),\
+      ,$(if $(filter $(_idfPrefix)-$(_idfClass),TARGET-SHARED_LIBRARIES TARGET-STATIC_LIBRARIES TARGET-EXECUTABLES TARGET-GYP),\
           $(eval _idfIntBase := $($(_idf2ndArchPrefix)$(_idfPrefix)_OUT_INTERMEDIATES)) \
        ,$(eval _idfIntBase := $($(_idfPrefix)_OUT_INTERMEDIATES)) \
        ) \
diff --git a/core/dex_preopt.mk b/core/dex_preopt.mk
index 4918a2b..46a6479 100644
--- a/core/dex_preopt.mk
+++ b/core/dex_preopt.mk
@@ -65,7 +65,7 @@
 $(call dex2oat-one-file,$(1),$(2),$(3),$(4))
 endef
 
-DEXPREOPT_ONE_FILE_DEPENDENCY_TOOLS := $(DEX2OAT_DEPENDENCY)
+DEXPREOPT_ONE_FILE_DEPENDENCY_TOOLS := $(DEX2OATD_DEPENDENCY)
 DEXPREOPT_ONE_FILE_DEPENDENCY_BUILT_BOOT_PREOPT := $(DEFAULT_DEX_PREOPT_BUILT_IMAGE)
 endif
 else
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index d5ec40c..7809c13 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -9,10 +9,6 @@
 LIBART_COMPILER := $(HOST_OUT_SHARED_LIBRARIES)/libart-compiler$(HOST_SHLIB_SUFFIX)
 LIBARTD_COMPILER := $(HOST_OUT_SHARED_LIBRARIES)/libartd-compiler$(HOST_SHLIB_SUFFIX)
 
-# TODO: for now, override with debug version for better error reporting
-DEX2OAT := $(DEX2OATD)
-LIBART_COMPILER := $(LIBARTD_COMPILER)
-
 # By default, do not run rerun dex2oat if the tool changes.
 # Comment out the | to force dex2oat to rerun on after all changes.
 DEX2OAT_DEPENDENCY := art/runtime/oat.cc # dependency on oat version number
@@ -21,6 +17,10 @@
 DEX2OAT_DEPENDENCY += $(DEX2OAT)
 DEX2OAT_DEPENDENCY += $(LIBART_COMPILER)
 
+DEX2OATD_DEPENDENCY := $(DEX2OAT_DEPENDENCY)
+DEX2OATD_DEPENDENCY += $(DEX2OATD)
+DEX2OATD_DEPENDENCY += $(LIBARTD_COMPILER)
+
 PRELOADED_CLASSES := frameworks/base/preloaded-classes
 
 LIBART_BOOT_IMAGE := /$(DEXPREOPT_BOOT_JAR_DIR)/boot.art
@@ -57,11 +57,12 @@
 # The .oat with symbols
 LIBART_TARGET_BOOT_OAT_UNSTRIPPED := $(TARGET_OUT_UNSTRIPPED)$(patsubst %.art,%.oat,$(LIBART_BOOT_IMAGE))
 
-$(DEFAULT_DEX_PREOPT_BUILT_IMAGE): $(LIBART_TARGET_BOOT_DEX_FILES) $(DEX2OAT_DEPENDENCY)
+# Use dex2oat debug version for better error reporting
+$(DEFAULT_DEX_PREOPT_BUILT_IMAGE): $(LIBART_TARGET_BOOT_DEX_FILES) $(DEX2OATD_DEPENDENCY)
 	@echo "target dex2oat: $@ ($?)"
 	@mkdir -p $(dir $@)
 	@mkdir -p $(dir $(LIBART_TARGET_BOOT_OAT_UNSTRIPPED))
-	$(hide) $(DEX2OAT) --runtime-arg -Xms256m --runtime-arg -Xmx256m --image-classes=$(PRELOADED_CLASSES) \
+	$(hide) $(DEX2OATD) --runtime-arg -Xms256m --runtime-arg -Xmx256m --image-classes=$(PRELOADED_CLASSES) \
 		$(addprefix --dex-file=,$(LIBART_TARGET_BOOT_DEX_FILES)) \
 		$(addprefix --dex-location=,$(LIBART_TARGET_BOOT_DEX_LOCATIONS)) \
 		--oat-symbols=$(LIBART_TARGET_BOOT_OAT_UNSTRIPPED) \
@@ -82,7 +83,7 @@
 define dex2oat-one-file
 $(hide) rm -f $(4)
 $(hide) mkdir -p $(dir $(4))
-$(hide) $(DEX2OAT) \
+$(hide) $(DEX2OATD) \
 	--runtime-arg -Xms64m --runtime-arg -Xmx64m \
 	--boot-image=$(1) \
 	--dex-file=$(2) \
diff --git a/core/executable_internal.mk b/core/executable_internal.mk
index a1ce7f2..a7c3e86 100644
--- a/core/executable_internal.mk
+++ b/core/executable_internal.mk
@@ -28,11 +28,6 @@
 
 # Define PRIVATE_ variables from global vars
 my_target_global_ld_dirs := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_GLOBAL_LD_DIRS)
-ifeq ($(LOCAL_CLANG),true)
-my_target_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_TARGET_GLOBAL_LDFLAGS)
-else
-my_target_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_GLOBAL_LDFLAGS)
-endif
 my_target_fdo_lib := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_FDO_LIB)
 my_target_libgcc := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_LIBGCC)
 my_target_crtbegin_dynamic_o := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_CRTBEGIN_DYNAMIC_O)
diff --git a/core/main.mk b/core/main.mk
index 3c4fd94..ec5721e 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -103,7 +103,7 @@
 # Include the google-specific config
 -include vendor/google/build/config.mk
 
-VERSION_CHECK_SEQUENCE_NUMBER := 3
+VERSION_CHECK_SEQUENCE_NUMBER := 4
 -include $(OUT_DIR)/versions_checked.mk
 ifneq ($(VERSION_CHECK_SEQUENCE_NUMBER),$(VERSIONS_CHECKED))
 
@@ -151,20 +151,26 @@
 endif
 endif
 
+java_version_str := $(shell java -version 2>&1)
+javac_version_str := $(shell javac -version 2>&1)
+
+# Check for the current jdk
 ifeq ($(requires_openjdk), true)
-ifeq ($(shell java -version 2>&1 | grep -i openjdk),)
+# The user asked for java7 openjdk, so check that the host
+# java version is really openjdk
+ifeq ($(shell echo '$(java_version_str)' | grep -i openjdk),)
 $(info ************************************************************)
 $(info You are attempting to build with an unsupported JDK.)
 $(info $(space))
 $(info This build requires OpenJDK, but you are using:)
-$(info $(shell java -version 2>&1 | head -n 2).)
+$(info $(java_version_str).)
 $(info Please follow the machine setup instructions at)
 $(info $(space)$(space)$(space)$(space)https://source.android.com/source/download.html)
 $(info ************************************************************)
 $(error stop)
 endif # java version is not OpenJdk
 else # if requires_openjdk
-ifneq ($(shell java -version 2>&1 | grep -i openjdk),)
+ifneq ($(shell echo '$(java_version_str)' | grep -i openjdk),)
 $(info ************************************************************)
 $(info You are attempting to build with an unsupported JDK.)
 $(info $(space))
@@ -180,20 +186,41 @@
 # EXPERIMENTAL_USE_JAVA7 is set, 1.6 otherwise.
 ifneq ($(EXPERIMENTAL_USE_JAVA7),)
 required_version := "1.7.x"
-java_version := $(shell java -version 2>&1 | head -n 1 | grep '^java .*[ "]1\.7[\. "$$]')
-javac_version := $(shell javac -version 2>&1 | head -n 1 | grep '[ "]1\.7[\. "$$]')
+required_javac_version := "1.7"
+java_version := $(shell echo '$(java_version_str)' | grep '^java .*[ "]1\.7[\. "$$]' | head -n 1)
+javac_version := $(shell echo '$(javac_version_str)' | grep '[ "]1\.7[\. "$$]' | head -n 1)
 else # if EXPERIMENTAL_USE_JAVA7
 required_version := "1.6.x"
-java_version := $(shell java -version 2>&1 | head -n 1 | grep '^java .*[ "]1\.6[\. "$$]')
-javac_version := $(shell javac -version 2>&1 | head -n 1 | grep '[ "]1\.6[\. "$$]')
+required_javac_version := "1.6"
+java_version := $(shell echo '$(java_version_str)' | grep '^java .*[ "]1\.6[\. "$$]' | head -n 1)
+javac_version := $(shell echo '$(javac_version_str)' | head -n 1 | grep '[ "]1\.6[\. "$$]' | head -n 1)
 endif # if EXPERIMENTAL_USE_JAVA7
 
+ifeq ($(required_javac_version), "1.6")
+$(info ************************************************************)
+$(info You are attempting to build with java 1.6.)
+$(info Java6 support for master builds will be dropped shortly,)
+$(info please upgrade to Java7 as soon as possible.)
+$(info $(space))
+$(info Visit http://source.android.com/source/initializing.html#installing-the-jdk for details. )
+$(info $(space))
+$(info To build using java-7:)
+$(info $(space))
+$(info $$ export EXPERIMENTAL_USE_JAVA7=true)
+$(info $$ . build/envsetup.sh)
+$(info $$ lunch <target>)
+$(info $$ make clobber)
+$(info $$ make -j8)
+$(info $(space))
+$(info ************************************************************)
+endif
+
 ifeq ($(strip $(java_version)),)
 $(info ************************************************************)
 $(info You are attempting to build with the incorrect version)
 $(info of java.)
 $(info $(space))
-$(info Your version is: $(shell java -version 2>&1 | head -n 1).)
+$(info Your version is: $(java_version_str).)
 $(info The required version is: $(required_version))
 $(info $(space))
 $(info Please follow the machine setup instructions at)
@@ -208,8 +235,8 @@
 $(info You are attempting to build with the incorrect version)
 $(info of javac.)
 $(info $(space))
-$(info Your version is: $(shell javac -version 2>&1 | head -n 1).)
-$(info The required version is: $(required_java_version))
+$(info Your version is: $(javac_version_str).)
+$(info The required version is: $(required_javac_version))
 $(info $(space))
 $(info Please follow the machine setup instructions at)
 $(info $(space)$(space)$(space)$(space)https://source.android.com/source/download.html)
@@ -217,6 +244,7 @@
 $(error stop)
 endif
 
+
 ifndef BUILD_EMULATOR
 ifeq (darwin,$(HOST_OS))
 GCC_REALPATH = $(realpath $(shell which $(HOST_CC)))
diff --git a/core/shared_library_internal.mk b/core/shared_library_internal.mk
index 3090d36..7f8a483 100644
--- a/core/shared_library_internal.mk
+++ b/core/shared_library_internal.mk
@@ -40,11 +40,6 @@
 
 # Define PRIVATE_ variables from global vars
 my_target_global_ld_dirs := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_GLOBAL_LD_DIRS)
-ifeq ($(LOCAL_CLANG),true)
-my_target_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_TARGET_GLOBAL_LDFLAGS)
-else
-my_target_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_GLOBAL_LDFLAGS)
-endif
 my_target_fdo_lib := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_FDO_LIB)
 my_target_libgcc := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_LIBGCC)
 my_target_crtbegin_so_o := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_CRTBEGIN_SO_O)
diff --git a/core/tasks/vendor_module_check.mk b/core/tasks/vendor_module_check.mk
index 96557e3..6e18901 100644
--- a/core/tasks/vendor_module_check.mk
+++ b/core/tasks/vendor_module_check.mk
@@ -24,6 +24,7 @@
         google \
         imgtec \
         invensense \
+        intel \
         lge \
         nvidia \
         nxp \
diff --git a/target/board/generic_arm64/BoardConfig.mk b/target/board/generic_arm64/BoardConfig.mk
index 4e056d1..1768ffc 100644
--- a/target/board/generic_arm64/BoardConfig.mk
+++ b/target/board/generic_arm64/BoardConfig.mk
@@ -49,7 +49,7 @@
 
 TARGET_USERIMAGES_USE_EXT4 := true
 BOARD_SYSTEMIMAGE_PARTITION_SIZE := 576716800
-BOARD_USERDATAIMAGE_PARTITION_SIZE := 209715200
+BOARD_USERDATAIMAGE_PARTITION_SIZE := 576716800
 BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
 BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
 BOARD_FLASH_BLOCK_SIZE := 512
diff --git a/target/product/core_minimal.mk b/target/product/core_minimal.mk
index eb8d653..7e2b19e 100644
--- a/target/product/core_minimal.mk
+++ b/target/product/core_minimal.mk
@@ -77,4 +77,9 @@
 PRODUCT_RUNTIMES := runtime_libart_default
 PRODUCT_RUNTIMES += runtime_libdvm
 
+PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
+    ro.zygote=zygote32
+PRODUCT_COPY_FILES += \
+    system/core/rootdir/init.zygote32.rc:root/init.zygote32.rc
+
 $(call inherit-product, $(SRC_TARGET_DIR)/product/base.mk)