diff --git a/core/Makefile b/core/Makefile
index fea5349..91fbce7 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1643,28 +1643,7 @@
 sdk_atree_files += $(atree_dir)/sdk.atree
 endif
 
-# For fonts to be bundled with the SDK. We copy them from the output of the device build.
-# They are also processed by the following script to edit their PS Names.
-sdk_font_rename_script := frameworks/base/tools/layoutlib/rename_font/build_font_single.py
-fonttools_lib := external/fonttools/Lib
-sdk_font_temp_dir := $(call intermediates-dir-for,PACKAGING,sdk-fonts)
-sdk_fonts := $(filter $(TARGET_OUT)/fonts/%tf, $(INTERNAL_SYSTEMIMAGE_FILES))
-sdk_fonts := $(addprefix $(sdk_font_temp_dir)/, $(notdir $(sdk_fonts)))
-sdk_font_config := $(wildcard frameworks/base/data/fonts/*.xml)
-sdk_font_config :=  $(addprefix $(sdk_font_temp_dir)/, $(notdir $(sdk_font_config)))
-
-# Files ending in 'tf' - .ttf or .otf. This excludes .xml files
-$(sdk_fonts): $(sdk_font_temp_dir)/%tf: $(TARGET_OUT)/fonts/%tf \
-			$(sdk_font_rename_script)
-	$(hide) mkdir -p $(dir $@)
-	$(hide) PYTHONPATH=$$PYTHONPATH:$(fonttools_lib) $(sdk_font_rename_script) \
-	    $< $@
-
-# Files ending in 'xml'
-$(sdk_font_config): $(sdk_font_temp_dir)/%.xml: \
-			frameworks/base/data/fonts/%.xml
-	$(hide) mkdir -p $(dir $@)
-	$(hide) cp -vf $< $@
+include $(BUILD_SYSTEM)/sdk_font.mk
 
 deps := \
 	$(target_notice_file_txt) \
@@ -1680,8 +1659,7 @@
 	$(sdk_atree_files) \
 	$(HOST_OUT_EXECUTABLES)/atree \
 	$(HOST_OUT_EXECUTABLES)/line_endings \
-	$(sdk_fonts) \
-	$(sdk_font_config)
+	$(SDK_FONT_DEPS)
 
 INTERNAL_SDK_TARGET := $(sdk_dir)/$(sdk_name).zip
 $(INTERNAL_SDK_TARGET): PRIVATE_NAME := $(sdk_name)
@@ -1719,7 +1697,7 @@
 			-v "TARGET_ARCH=$(TARGET_ARCH)" \
 			-v "TARGET_CPU_ABI=$(TARGET_CPU_ABI)" \
 			-v "DLL_EXTENSION=$(HOST_SHLIB_SUFFIX)" \
-			-v "FONT_OUT=$(sdk_font_temp_dir)" \
+			-v "FONT_OUT=$(SDK_FONT_TEMP)" \
 			-o $(PRIVATE_DIR) && \
 		cp -f $(target_notice_file_txt) \
 				$(PRIVATE_DIR)/system-images/android-$(PLATFORM_VERSION)/$(TARGET_CPU_ABI)/NOTICE.txt && \
diff --git a/core/sdk_font.mk b/core/sdk_font.mk
new file mode 100644
index 0000000..aa6b94d
--- /dev/null
+++ b/core/sdk_font.mk
@@ -0,0 +1,61 @@
+###############################################################################
+# Fonts shipped with the SDK need to be renamed for Java to handle them
+# properly. Hence, a special script is used to rename the fonts. We bundle all
+# the fonts that are shipped on a newer non-space-constrained device. However,
+# OpenType fonts used on these devices are not supported by Java. Their
+# replacements are added separately.
+###############################################################################
+
+
+# The script that renames the font.
+sdk_font_rename_script := frameworks/base/tools/layoutlib/rename_font/build_font_single.py
+
+# Location of the fonttools library that the above script depends on.
+fonttools_lib := external/fonttools/Lib
+
+# A temporary location to store the renamed fonts. atree picks all files in
+# this directory and bundles it with the SDK.
+SDK_FONT_TEMP := $(call intermediates-dir-for,PACKAGING,sdk-fonts,HOST,COMMON)
+
+# The font configuration files - system_fonts.xml, fallback_fonts.xml etc.
+sdk_font_config := $(wildcard frameworks/base/data/fonts/*.xml)
+sdk_font_config :=  $(addprefix $(SDK_FONT_TEMP)/, $(notdir $(sdk_font_config)))
+
+$(sdk_font_config): $(SDK_FONT_TEMP)/%.xml: \
+			frameworks/base/data/fonts/%.xml
+	$(hide) mkdir -p $(dir $@)
+	$(hide) cp -vf $< $@
+
+# List of fonts on the device that we want to ship. This is all .ttf fonts.
+sdk_fonts_device := $(filter $(TARGET_OUT)/fonts/%.ttf, $(INTERNAL_SYSTEMIMAGE_FILES))
+sdk_fonts_device := $(addprefix $(SDK_FONT_TEMP)/, $(notdir $(sdk_fonts_device)))
+
+# Macro to rename the font.
+sdk_rename_font = PYTHONPATH=$$PYTHONPATH:$(fonttools_lib) $(sdk_font_rename_script) \
+	    $1 $2
+
+# TODO: If the font file is a symlink, reuse the font renamed from the symlink
+# target.
+$(sdk_fonts_device): $(SDK_FONT_TEMP)/%.ttf: $(TARGET_OUT)/fonts/%.ttf \
+			$(sdk_font_rename_script)
+	$(hide) mkdir -p $(dir $@)
+	$(hide) $(call sdk_rename_font,$<,$@)
+
+# Extra fonts that are not part of the device build. These are used as a
+# replacement for the OpenType fonts.
+sdk_fonts_extra := NanumGothic.ttf DroidSansFallback.ttf
+sdk_fonts_extra := $(addprefix $(SDK_FONT_TEMP)/, $(sdk_fonts_extra))
+
+$(SDK_FONT_TEMP)/NanumGothic.ttf: external/naver-fonts/NanumGothic.ttf \
+			$(sdk_font_rename_script)
+	$(hide) mkdir -p $(dir $@)
+	$(hide) $(call sdk_rename_font,$<,$@)
+
+$(SDK_FONT_TEMP)/DroidSansFallback.ttf: frameworks/base/data/fonts/DroidSansFallbackFull.ttf \
+			$(sdk_font_rename_script)
+	$(hide) mkdir -p $(dir $@)
+	$(hide) $(call sdk_rename_font,$<,$@)
+
+# List of all dependencies - all fonts and configuration files.
+SDK_FONT_DEPS := $(sdk_fonts_device) $(sdk_fonts_extra) $(sdk_font_config)
+