diff --git a/core/config.mk b/core/config.mk
index 021a26e..85c850a 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -442,6 +442,8 @@
 #
 # Tools that are prebuilts for TARGET_BUILD_APPS
 #
+prebuilt_sdk_tools := prebuilts/sdk/tools
+prebuilt_sdk_tools_bin := $(prebuilt_sdk_tools)/$(HOST_OS)/bin
 
 ACP := $(HOST_OUT_EXECUTABLES)/acp
 AIDL := $(HOST_OUT_EXECUTABLES)/aidl
@@ -455,13 +457,14 @@
 DX := $(HOST_OUT_EXECUTABLES)/dx
 MAINDEXCLASSES := $(HOST_OUT_EXECUTABLES)/mainDexClasses
 
+# Always use prebuilts for ckati and makeparallel
+CKATI := $(prebuilt_sdk_tools_bin)/ckati
+MAKEPARALLEL := $(prebuilt_sdk_tools_bin)/makeparallel
+
 USE_PREBUILT_SDK_TOOLS_IN_PLACE := true
 
 # Override the definitions above for unbundled and PDK builds
 ifneq (,$(TARGET_BUILD_APPS)$(filter true,$(TARGET_BUILD_PDK)))
-prebuilt_sdk_tools := prebuilts/sdk/tools
-prebuilt_sdk_tools_bin := $(prebuilt_sdk_tools)/$(HOST_OS)/bin
-
 ACP := $(prebuilt_sdk_tools_bin)/acp
 AIDL := $(prebuilt_sdk_tools_bin)/aidl
 AAPT := $(prebuilt_sdk_tools_bin)/aapt
@@ -479,6 +482,8 @@
 BCC_COMPAT := $(prebuilt_sdk_tools_bin)/bcc_compat
 endif # TARGET_BUILD_PDK
 endif # TARGET_BUILD_APPS || TARGET_BUILD_PDK
+prebuilt_sdk_tools :=
+prebuilt_sdk_tools_bin :=
 
 
 # ---------------------------------------------------------------
diff --git a/core/ninja.mk b/core/ninja.mk
index ef627c8..afdef7e 100644
--- a/core/ninja.mk
+++ b/core/ninja.mk
@@ -1,14 +1,7 @@
 NINJA ?= prebuilts/ninja/$(HOST_PREBUILT_TAG)/ninja
 
 ifeq ($(USE_SOONG),true)
-USE_SOONG_FOR_KATI := true
-endif
-
-ifeq ($(USE_SOONG_FOR_KATI),true)
 include $(BUILD_SYSTEM)/soong.mk
-else
-KATI ?= $(HOST_OUT_EXECUTABLES)/ckati
-MAKEPARALLEL ?= $(HOST_OUT_EXECUTABLES)/makeparallel
 endif
 
 KATI_OUTPUT_PATTERNS := $(OUT_DIR)/build%.ninja $(OUT_DIR)/ninja%.sh
@@ -69,7 +62,7 @@
 -include vendor/google/build/ninja_config.mk
 
 # Any Android goals that need to be built.
-ANDROID_GOALS := $(filter-out $(KATI_OUTPUT_PATTERNS) $(KATI) $(MAKEPARALLEL),\
+ANDROID_GOALS := $(filter-out $(KATI_OUTPUT_PATTERNS) $(CKATI) $(MAKEPARALLEL),\
     $(sort $(ORIGINAL_MAKECMDGOALS) $(MAKECMDGOALS)))
 # Goals we need to pass to Ninja.
 NINJA_GOALS := $(filter-out $(NINJA_EXCLUDE_GOALS), $(ANDROID_GOALS))
@@ -155,34 +148,9 @@
 ifeq ($(KATI_EMULATE_FIND),false)
   KATI_FIND_EMULATOR :=
 endif
-$(KATI_BUILD_NINJA): $(KATI) $(MAKEPARALLEL) $(SOONG_ANDROID_MK) FORCE
+$(KATI_BUILD_NINJA): $(CKATI) $(MAKEPARALLEL) $(SOONG_ANDROID_MK) FORCE
 	@echo Running kati to generate build$(KATI_NINJA_SUFFIX).ninja...
-	+$(hide) $(KATI_MAKEPARALLEL) $(KATI) --ninja --ninja_dir=$(OUT_DIR) --ninja_suffix=$(KATI_NINJA_SUFFIX) --regen --ignore_dirty=$(OUT_DIR)/% --no_ignore_dirty=$(SOONG_ANDROID_MK) --ignore_optional_include=$(OUT_DIR)/%.P --detect_android_echo $(KATI_FIND_EMULATOR) -f build/core/main.mk $(KATI_GOALS) --gen_all_targets BUILDING_WITH_NINJA=true SOONG_ANDROID_MK=$(SOONG_ANDROID_MK)
-
-ifneq ($(USE_SOONG_FOR_KATI),true)
-KATI_CXX := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_CFLAGS) $(CLANG_HOST_GLOBAL_CPPFLAGS) $(HOST_SYSTEMCPP_CPPFLAGS)
-KATI_LD := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_LDFLAGS) $(HOST_SYSTEMCPP_LDFLAGS)
-# Build static ckati. Unfortunately Mac OS X doesn't officially support static exectuables.
-ifeq ($(BUILD_OS),linux)
-# We need everything in libpthread.a otherwise C++11's threading library will be disabled.
-KATI_LD += -static -Wl,--whole-archive -lpthread -Wl,--no-whole-archive -ldl
-endif
-
-KATI_INTERMEDIATES_PATH := $(HOST_OUT_INTERMEDIATES)/EXECUTABLES/ckati_intermediates
-KATI_BIN_PATH := $(HOST_OUT_EXECUTABLES)
-include build/kati/Makefile.ckati
-
-MAKEPARALLEL_CXX := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_CFLAGS) $(CLANG_HOST_GLOBAL_CPPFLAGS) $(HOST_SYSTEMCPP_CPPFLAGS)
-MAKEPARALLEL_LD := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_LDFLAGS) $(HOST_SYSTEMCPP_LDFLAGS)
-# Build static makeparallel. Unfortunately Mac OS X doesn't officially support static exectuables.
-ifeq ($(BUILD_OS),linux)
-MAKEPARALLEL_LD += -static
-endif
-
-MAKEPARALLEL_INTERMEDIATES_PATH := $(HOST_OUT_INTERMEDIATES)/EXECUTABLES/makeparallel_intermediates
-MAKEPARALLEL_BIN_PATH := $(HOST_OUT_EXECUTABLES)
-include build/tools/makeparallel/Makefile
-endif
+	+$(hide) $(KATI_MAKEPARALLEL) $(CKATI) --ninja --ninja_dir=$(OUT_DIR) --ninja_suffix=$(KATI_NINJA_SUFFIX) --regen --ignore_dirty=$(OUT_DIR)/% --no_ignore_dirty=$(SOONG_ANDROID_MK) --ignore_optional_include=$(OUT_DIR)/%.P --detect_android_echo $(KATI_FIND_EMULATOR) -f build/core/main.mk $(KATI_GOALS) --gen_all_targets BUILDING_WITH_NINJA=true SOONG_ANDROID_MK=$(SOONG_ANDROID_MK)
 
 .PHONY: FORCE
 FORCE:
diff --git a/core/soong.mk b/core/soong.mk
index f48e15e..176c159 100644
--- a/core/soong.mk
+++ b/core/soong.mk
@@ -4,9 +4,6 @@
 SOONG_ANDROID_MK := $(SOONG_OUT_DIR)/Android.mk
 SOONG_VARIABLES := $(SOONG_OUT_DIR)/soong.variables
 SOONG_IN_MAKE := $(SOONG_OUT_DIR)/.soong.in_make
-SOONG_HOST_EXECUTABLES := $(SOONG_OUT_DIR)/host/$(HOST_PREBUILT_TAG)/bin
-KATI := $(SOONG_HOST_EXECUTABLES)/ckati
-MAKEPARALLEL := $(SOONG_HOST_EXECUTABLES)/makeparallel
 
 ifeq (,$(filter /%,$(SOONG_OUT_DIR)))
 SOONG_TOP_RELPATH := $(shell python -c "import os; print os.path.relpath('$(TOP)', '$(SOONG_OUT_DIR)')")
@@ -63,7 +60,4 @@
 
 # Build an Android.mk listing all soong outputs as prebuilts
 $(SOONG_ANDROID_MK): $(SOONG) $(SOONG_VARIABLES) $(SOONG_IN_MAKE) FORCE
-	$(hide) $(SOONG) $(KATI) $(MAKEPARALLEL) $(NINJA_ARGS)
-
-$(KATI): $(SOONG_ANDROID_MK)
-$(MAKEPARALLEL): $(SOONG_ANDROID_MK)
+	$(hide) $(SOONG) $(SOONG_BUILD_NINJA) $(NINJA_ARGS)