libs.mk - aom - Git at Google

 ##
 ## Copyright (c) 2016, Alliance for Open Media. All rights reserved
 ##
 ## This source code is subject to the terms of the BSD 2 Clause License and
 ## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 ## was not distributed with this source code in the LICENSE file, you can
 ## obtain it at www.aomedia.org/license/software. If the Alliance for Open
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##


 # ARM assembly files are written in RVCT-style. We use some make magic to
 # filter those files to allow GCC compilation
 ifeq ($(ARCH_ARM),yes)
   ASM:=$(if $(filter yes,$(CONFIG_GCC)$(CONFIG_MSVS)),.asm.s,.asm)
 else
   ASM:=.asm
 endif

 #
 # Rule to generate runtime cpu detection files
 #
 define rtcd_h_template
 $$(BUILD_PFX)$(1).h: $$(SRC_PATH_BARE)/$(2)
 	@echo "    [CREATE] $$@"
 	$$(qexec)$$(SRC_PATH_BARE)/build/make/rtcd.pl --arch=$$(TGT_ISA) \
           --sym=$(1) \
           --config=$$(CONFIG_DIR)$$(target)-$$(TOOLCHAIN).mk \
           $$(RTCD_OPTIONS) $$^ > $$@
 CLEAN-OBJS += $$(BUILD_PFX)$(1).h
 RTCD += $$(BUILD_PFX)$(1).h
 endef

 CODEC_SRCS-yes += CHANGELOG
 CODEC_SRCS-yes += libs.mk

 include $(SRC_PATH_BARE)/aom/aom_codec.mk
 CODEC_SRCS-yes += $(addprefix aom/,$(call enabled,API_SRCS))
 CODEC_DOC_SRCS += $(addprefix aom/,$(call enabled,API_DOC_SRCS))

 include $(SRC_PATH_BARE)/aom_mem/aom_mem.mk
 CODEC_SRCS-yes += $(addprefix aom_mem/,$(call enabled,MEM_SRCS))

 include $(SRC_PATH_BARE)/aom_scale/aom_scale.mk
 CODEC_SRCS-yes += $(addprefix aom_scale/,$(call enabled,SCALE_SRCS))

 include $(SRC_PATH_BARE)/aom_ports/aom_ports.mk
 CODEC_SRCS-yes += $(addprefix aom_ports/,$(call enabled,PORTS_SRCS))

 include $(SRC_PATH_BARE)/aom_dsp/aom_dsp.mk
 CODEC_SRCS-yes += $(addprefix aom_dsp/,$(call enabled,DSP_SRCS))

 include $(SRC_PATH_BARE)/aom_util/aom_util.mk
 CODEC_SRCS-yes += $(addprefix aom_util/,$(call enabled,UTIL_SRCS))

 #  AV1 make file
 ifeq ($(CONFIG_AV1),yes)
   AV1_PREFIX=av1/
   include $(SRC_PATH_BARE)/$(AV1_PREFIX)av1_common.mk
 endif

 ifeq ($(CONFIG_AV1_ENCODER),yes)
   AV1_PREFIX=av1/
   include $(SRC_PATH_BARE)/$(AV1_PREFIX)av1_cx.mk
   CODEC_SRCS-yes += $(addprefix $(AV1_PREFIX),$(call enabled,AV1_CX_SRCS))
   CODEC_EXPORTS-yes += $(addprefix $(AV1_PREFIX),$(AV1_CX_EXPORTS))
   CODEC_SRCS-yes += $(AV1_PREFIX)av1_cx.mk aom/aom.h aom/aomcx.h
   INSTALL-LIBS-yes += include/aom/aom.h include/aom/aomcx.h
   INSTALL_MAPS += include/aom/% $(SRC_PATH_BARE)/$(AV1_PREFIX)/%
   CODEC_DOC_SRCS += aom/aom.h aom/aomcx.h
   CODEC_DOC_SECTIONS += av1 av1_encoder
 endif

 ifeq ($(CONFIG_AV1_DECODER),yes)
   AV1_PREFIX=av1/
   include $(SRC_PATH_BARE)/$(AV1_PREFIX)av1_dx.mk
   CODEC_SRCS-yes += $(addprefix $(AV1_PREFIX),$(call enabled,AV1_DX_SRCS))
   CODEC_EXPORTS-yes += $(addprefix $(AV1_PREFIX),$(AV1_DX_EXPORTS))
   CODEC_SRCS-yes += $(AV1_PREFIX)av1_dx.mk aom/aom.h aom/aomdx.h
   INSTALL-LIBS-yes += include/aom/aom.h include/aom/aomdx.h
   INSTALL_MAPS += include/aom/% $(SRC_PATH_BARE)/$(AV1_PREFIX)/%
   CODEC_DOC_SRCS += aom/aom.h aom/aomdx.h
   CODEC_DOC_SECTIONS += av1 av1_decoder
 endif

 AV1_PREFIX=av1/
 $(BUILD_PFX)$(AV1_PREFIX)%.c.o: CFLAGS += -Wextra

 ifeq ($(CONFIG_ENCODERS),yes)
   CODEC_DOC_SECTIONS += encoder
 endif
 ifeq ($(CONFIG_DECODERS),yes)
   CODEC_DOC_SECTIONS += decoder
 endif


 ifeq ($(CONFIG_MSVS),yes)
 CODEC_LIB=$(if $(CONFIG_STATIC_MSVCRT),aommt,aommd)
 GTEST_LIB=$(if $(CONFIG_STATIC_MSVCRT),gtestmt,gtestmd)
 # This variable uses deferred expansion intentionally, since the results of
 # $(wildcard) may change during the course of the Make.
 VS_PLATFORMS = $(foreach d,$(wildcard */Release/$(CODEC_LIB).lib),$(word 1,$(subst /, ,$(d))))
 endif

 # The following pairs define a mapping of locations in the distribution
 # tree to locations in the source/build trees.
 INSTALL_MAPS += include/aom/% $(SRC_PATH_BARE)/aom/%
 INSTALL_MAPS += include/aom/% $(SRC_PATH_BARE)/aom_ports/%
 INSTALL_MAPS += $(LIBSUBDIR)/%     %
 INSTALL_MAPS += src/%     $(SRC_PATH_BARE)/%
 ifeq ($(CONFIG_MSVS),yes)
 INSTALL_MAPS += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/%  $(p)/Release/%)
 INSTALL_MAPS += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/%  $(p)/Debug/%)
 endif

 CODEC_SRCS-yes += build/make/version.sh
 CODEC_SRCS-yes += build/make/rtcd.pl
 CODEC_SRCS-yes += aom_ports/emmintrin_compat.h
 CODEC_SRCS-yes += aom_ports/mem_ops.h
 CODEC_SRCS-yes += aom_ports/mem_ops_aligned.h
 CODEC_SRCS-yes += aom_ports/aom_once.h
 CODEC_SRCS-yes += $(BUILD_PFX)aom_config.c
 INSTALL-SRCS-no += $(BUILD_PFX)aom_config.c
 ifeq ($(ARCH_X86)$(ARCH_X86_64),yes)
 INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += third_party/x86inc/x86inc.asm
 endif
 CODEC_EXPORTS-yes += aom/exports_com
 CODEC_EXPORTS-$(CONFIG_ENCODERS) += aom/exports_enc
 CODEC_EXPORTS-$(CONFIG_DECODERS) += aom/exports_dec

 INSTALL-LIBS-yes += include/aom/aom_codec.h
 INSTALL-LIBS-yes += include/aom/aom_frame_buffer.h
 INSTALL-LIBS-yes += include/aom/aom_image.h
 INSTALL-LIBS-yes += include/aom/aom_integer.h
 INSTALL-LIBS-$(CONFIG_DECODERS) += include/aom/aom_decoder.h
 INSTALL-LIBS-$(CONFIG_ENCODERS) += include/aom/aom_encoder.h
 ifeq ($(CONFIG_EXTERNAL_BUILD),yes)
 ifeq ($(CONFIG_MSVS),yes)
 INSTALL-LIBS-yes                  += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/$(CODEC_LIB).lib)
 INSTALL-LIBS-$(CONFIG_DEBUG_LIBS) += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/$(CODEC_LIB)d.lib)
 INSTALL-LIBS-$(CONFIG_SHARED) += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/aom.dll)
 INSTALL-LIBS-$(CONFIG_SHARED) += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/aom.exp)
 endif
 else
 INSTALL-LIBS-$(CONFIG_STATIC) += $(LIBSUBDIR)/libaom.a
 INSTALL-LIBS-$(CONFIG_DEBUG_LIBS) += $(LIBSUBDIR)/libaom_g.a
 endif

 CODEC_SRCS=$(call enabled,CODEC_SRCS)
 INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += $(CODEC_SRCS)
 INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += $(call enabled,CODEC_EXPORTS)


 # Generate a list of all enabled sources, in particular for exporting to gyp
 # based build systems.
 libaom_srcs.txt:
 	@echo "    [CREATE] $@"
 	@echo $(CODEC_SRCS) | xargs -n1 echo | LC_ALL=C sort -u > $@
 CLEAN-OBJS += libaom_srcs.txt


 ifeq ($(CONFIG_EXTERNAL_BUILD),yes)
 ifeq ($(CONFIG_MSVS),yes)

 aom.def: $(call enabled,CODEC_EXPORTS)
 	@echo "    [CREATE] $@"
 	$(qexec)$(SRC_PATH_BARE)/build/make/gen_msvs_def.sh\
             --name=aom\
             --out=$@ $^
 CLEAN-OBJS += aom.def

 # Assembly files that are included, but don't define symbols themselves.
 # Filtered out to avoid Visual Studio build warnings.
 ASM_INCLUDES := \
     third_party/x86inc/x86inc.asm \
     aom_config.asm \
     aom_ports/x86_abi_support.asm \

 aom.$(VCPROJ_SFX): $(CODEC_SRCS) aom.def
 	@echo "    [CREATE] $@"
 	$(qexec)$(GEN_VCPROJ) \
             $(if $(CONFIG_SHARED),--dll,--lib) \
             --target=$(TOOLCHAIN) \
             $(if $(CONFIG_STATIC_MSVCRT),--static-crt) \
             --name=aom \
             --proj-guid=DCE19DAF-69AC-46DB-B14A-39F0FAA5DB74 \
             --module-def=aom.def \
             --ver=$(CONFIG_VS_VERSION) \
             --src-path-bare="$(SRC_PATH_BARE)" \
             --out=$@ $(CFLAGS) \
             $(filter-out $(addprefix %, $(ASM_INCLUDES)), $^) \
             --src-path-bare="$(SRC_PATH_BARE)" \

 PROJECTS-yes += aom.$(VCPROJ_SFX)

 aom.$(VCPROJ_SFX): aom_config.asm
 aom.$(VCPROJ_SFX): $(RTCD)

 endif
 else
 LIBAOM_OBJS=$(call objs,$(CODEC_SRCS))
 OBJS-yes += $(LIBAOM_OBJS)
 LIBS-$(if yes,$(CONFIG_STATIC)) += $(BUILD_PFX)libaom.a $(BUILD_PFX)libaom_g.a
 $(BUILD_PFX)libaom_g.a: $(LIBAOM_OBJS)

 SO_VERSION_MAJOR := 3
 SO_VERSION_MINOR := 0
 SO_VERSION_PATCH := 0
 ifeq ($(filter darwin%,$(TGT_OS)),$(TGT_OS))
 LIBAOM_SO               := libaom.$(SO_VERSION_MAJOR).dylib
 SHARED_LIB_SUF          := .dylib
 EXPORT_FILE             := libaom.syms
 LIBAOM_SO_SYMLINKS      := $(addprefix $(LIBSUBDIR)/, \
                              libaom.dylib  )
 else
 ifeq ($(filter iphonesimulator%,$(TGT_OS)),$(TGT_OS))
 LIBAOM_SO               := libaom.$(SO_VERSION_MAJOR).dylib
 SHARED_LIB_SUF          := .dylib
 EXPORT_FILE             := libaom.syms
 LIBAOM_SO_SYMLINKS      := $(addprefix $(LIBSUBDIR)/, libaom.dylib)
 else
 ifeq ($(filter os2%,$(TGT_OS)),$(TGT_OS))
 LIBAOM_SO               := libaom$(SO_VERSION_MAJOR).dll
 SHARED_LIB_SUF          := _dll.a
 EXPORT_FILE             := libaom.def
 LIBAOM_SO_SYMLINKS      :=
 LIBAOM_SO_IMPLIB        := libaom_dll.a
 else
 LIBAOM_SO               := libaom.so.$(SO_VERSION_MAJOR).$(SO_VERSION_MINOR).$(SO_VERSION_PATCH)
 SHARED_LIB_SUF          := .so
 EXPORT_FILE             := libaom.ver
 LIBAOM_SO_SYMLINKS      := $(addprefix $(LIBSUBDIR)/, \
                              libaom.so libaom.so.$(SO_VERSION_MAJOR) \
                              libaom.so.$(SO_VERSION_MAJOR).$(SO_VERSION_MINOR))
 endif
 endif
 endif

 LIBS-$(CONFIG_SHARED) += $(BUILD_PFX)$(LIBAOM_SO)\
                            $(notdir $(LIBAOM_SO_SYMLINKS)) \
                            $(if $(LIBAOM_SO_IMPLIB), $(BUILD_PFX)$(LIBAOM_SO_IMPLIB))
 $(BUILD_PFX)$(LIBAOM_SO): $(LIBAOM_OBJS) $(EXPORT_FILE)
 $(BUILD_PFX)$(LIBAOM_SO): extralibs += -lm
 $(BUILD_PFX)$(LIBAOM_SO): SONAME = libaom.so.$(SO_VERSION_MAJOR)
 $(BUILD_PFX)$(LIBAOM_SO): EXPORTS_FILE = $(EXPORT_FILE)

 libaom.ver: $(call enabled,CODEC_EXPORTS)
 	@echo "    [CREATE] $@"
 	$(qexec)echo "{ global:" > $@
 	$(qexec)for f in $?; do awk '{print $$2";"}' < $$f >>$@; done
 	$(qexec)echo "local: *; };" >> $@
 CLEAN-OBJS += libaom.ver

 libaom.syms: $(call enabled,CODEC_EXPORTS)
 	@echo "    [CREATE] $@"
 	$(qexec)awk '{print "_"$$2}' $^ >$@
 CLEAN-OBJS += libaom.syms

 libaom.def: $(call enabled,CODEC_EXPORTS)
 	@echo "    [CREATE] $@"
 	$(qexec)echo LIBRARY $(LIBAOM_SO:.dll=) INITINSTANCE TERMINSTANCE > $@
 	$(qexec)echo "DATA MULTIPLE NONSHARED" >> $@
 	$(qexec)echo "EXPORTS" >> $@
 	$(qexec)awk '{print "_"$$2}' $^ >>$@
 CLEAN-OBJS += libaom.def

 libaom_dll.a: $(LIBAOM_SO)
 	@echo "    [IMPLIB] $@"
 	$(qexec)emximp -o $@ $<
 CLEAN-OBJS += libaom_dll.a

 define libaom_symlink_template
 $(1): $(2)
 	@echo "    [LN]     $(2) $$@"
 	$(qexec)mkdir -p $$(dir $$@)
 	$(qexec)ln -sf $(2) $$@
 endef

 $(eval $(call libaom_symlink_template,\
     $(addprefix $(BUILD_PFX),$(notdir $(LIBAOM_SO_SYMLINKS))),\
     $(BUILD_PFX)$(LIBAOM_SO)))
 $(eval $(call libaom_symlink_template,\
     $(addprefix $(DIST_DIR)/,$(LIBAOM_SO_SYMLINKS)),\
     $(LIBAOM_SO)))


 INSTALL-LIBS-$(CONFIG_SHARED) += $(LIBAOM_SO_SYMLINKS)
 INSTALL-LIBS-$(CONFIG_SHARED) += $(LIBSUBDIR)/$(LIBAOM_SO)
 INSTALL-LIBS-$(CONFIG_SHARED) += $(if $(LIBAOM_SO_IMPLIB),$(LIBSUBDIR)/$(LIBAOM_SO_IMPLIB))


 LIBS-yes += aom.pc
 aom.pc: config.mk libs.mk
 	@echo "    [CREATE] $@"
 	$(qexec)echo '# pkg-config file from libaom $(VERSION_STRING)' > $@
 	$(qexec)echo 'prefix=$(PREFIX)' >> $@
 	$(qexec)echo 'exec_prefix=$${prefix}' >> $@
 	$(qexec)echo 'libdir=$${prefix}/$(LIBSUBDIR)' >> $@
 	$(qexec)echo 'includedir=$${prefix}/include' >> $@
 	$(qexec)echo '' >> $@
 	$(qexec)echo 'Name: aom' >> $@
 	$(qexec)echo 'Description: WebM Project AVx codec implementation' >> $@
 	$(qexec)echo 'Version: $(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_PATCH)' >> $@
 	$(qexec)echo 'Requires:' >> $@
 	$(qexec)echo 'Conflicts:' >> $@
 	$(qexec)echo 'Libs: -L$${libdir} -laom -lm' >> $@
 ifeq ($(HAVE_PTHREAD_H),yes)
 	$(qexec)echo 'Libs.private: -lm -lpthread' >> $@
 else
 	$(qexec)echo 'Libs.private: -lm' >> $@
 endif
 	$(qexec)echo 'Cflags: -I$${includedir}' >> $@
 INSTALL-LIBS-yes += $(LIBSUBDIR)/pkgconfig/aom.pc
 INSTALL_MAPS += $(LIBSUBDIR)/pkgconfig/%.pc %.pc
 CLEAN-OBJS += aom.pc
 endif

 #
 # Rule to make assembler configuration file from C configuration file
 #
 ifeq ($(ARCH_X86)$(ARCH_X86_64),yes)
 # YASM
 $(BUILD_PFX)aom_config.asm: $(BUILD_PFX)aom_config.h
 	@echo "    [CREATE] $@"
 	@egrep "#define [A-Z0-9_]+ [01]" $< \
 	    | awk '{print $$2 " equ " $$3}' > $@
 else
 ADS2GAS=$(if $(filter yes,$(CONFIG_GCC)),| $(ASM_CONVERSION))
 $(BUILD_PFX)aom_config.asm: $(BUILD_PFX)aom_config.h
 	@echo "    [CREATE] $@"
 	@egrep "#define [A-Z0-9_]+ [01]" $< \
 	    | awk '{print $$2 " EQU " $$3}' $(ADS2GAS) > $@
 	@echo "        END" $(ADS2GAS) >> $@
 CLEAN-OBJS += $(BUILD_PFX)aom_config.asm
 endif

 #
 # Add assembler dependencies for configuration.
 #
 $(filter %.s.o,$(OBJS-yes)):     $(BUILD_PFX)aom_config.asm
 $(filter %$(ASM).o,$(OBJS-yes)): $(BUILD_PFX)aom_config.asm


 $(shell $(SRC_PATH_BARE)/build/make/version.sh "$(SRC_PATH_BARE)" $(BUILD_PFX)aom_version.h)
 CLEAN-OBJS += $(BUILD_PFX)aom_version.h

 #
 # Add include path for libwebm sources.
 #
 ifeq ($(CONFIG_WEBM_IO),yes)
   CXXFLAGS += -I$(SRC_PATH_BARE)/third_party/libwebm
 endif

 ##
 ## libaom test directives
 ##
 ifeq ($(CONFIG_UNIT_TESTS),yes)
 LIBAOM_TEST_DATA_PATH ?= .

 include $(SRC_PATH_BARE)/test/test.mk
 LIBAOM_TEST_SRCS=$(addprefix test/,$(call enabled,LIBAOM_TEST_SRCS))
 LIBAOM_TEST_BIN=./test_libaom$(EXE_SFX)
 LIBAOM_TEST_DATA=$(addprefix $(LIBAOM_TEST_DATA_PATH)/,\
                      $(call enabled,LIBAOM_TEST_DATA))
 libaom_test_data_url=https://storage.googleapis.com/downloads.webmproject.org/test_data/libvpx/$(1)

 TEST_INTRA_PRED_SPEED_BIN=./test_intra_pred_speed$(EXE_SFX)
 TEST_INTRA_PRED_SPEED_SRCS=$(addprefix test/,$(call enabled,TEST_INTRA_PRED_SPEED_SRCS))
 TEST_INTRA_PRED_SPEED_OBJS := $(sort $(call objs,$(TEST_INTRA_PRED_SPEED_SRCS)))

 libaom_test_srcs.txt:
 	@echo "    [CREATE] $@"
 	@echo $(LIBAOM_TEST_SRCS) | xargs -n1 echo | LC_ALL=C sort -u > $@
 CLEAN-OBJS += libaom_test_srcs.txt

 $(LIBAOM_TEST_DATA): $(SRC_PATH_BARE)/test/test-data.sha1
 	@echo "    [DOWNLOAD] $@"
 	$(qexec)trap 'rm -f $@' INT TERM &&\
             curl -L -o $@ $(call libaom_test_data_url,$(@F))

 testdata:: $(LIBAOM_TEST_DATA)
 	$(qexec)[ -x "$$(which sha1sum)" ] && sha1sum=sha1sum;\
           [ -x "$$(which shasum)" ] && sha1sum=shasum;\
           [ -x "$$(which sha1)" ] && sha1sum=sha1;\
           if [ -n "$${sha1sum}" ]; then\
             set -e;\
             echo "Checking test data:";\
             for f in $(call enabled,LIBAOM_TEST_DATA); do\
                 grep $$f $(SRC_PATH_BARE)/test/test-data.sha1 |\
                     (cd $(LIBAOM_TEST_DATA_PATH); $${sha1sum} -c);\
             done; \
         else\
             echo "Skipping test data integrity check, sha1sum not found.";\
         fi

 ifeq ($(CONFIG_EXTERNAL_BUILD),yes)
 ifeq ($(CONFIG_MSVS),yes)
 gtest.$(VCPROJ_SFX): $(SRC_PATH_BARE)/third_party/googletest/src/googletest/src/gtest-all.cc
 	@echo "    [CREATE] $@"
 	$(qexec)$(GEN_VCPROJ) \
             --lib \
             --target=$(TOOLCHAIN) \
             $(if $(CONFIG_STATIC_MSVCRT),--static-crt) \
             --name=gtest \
             --proj-guid=EC00E1EC-AF68-4D92-A255-181690D1C9B1 \
             --ver=$(CONFIG_VS_VERSION) \
             --src-path-bare="$(SRC_PATH_BARE)" \
             -D_VARIADIC_MAX=10 \
             --out=gtest.$(VCPROJ_SFX) \
 	    $(SRC_PATH_BARE)/third_party/googletest/src/googletest/src/gtest-all.cc \
             -I. -I"$(SRC_PATH_BARE)/third_party/googletest/src/googletest/include" \
 	    -I"$(SRC_PATH_BARE)/third_party/googletest/src/googletest"

 PROJECTS-$(CONFIG_MSVS) += gtest.$(VCPROJ_SFX)

 test_libaom.$(VCPROJ_SFX): $(LIBAOM_TEST_SRCS) aom.$(VCPROJ_SFX) gtest.$(VCPROJ_SFX)
 	@echo "    [CREATE] $@"
 	$(qexec)$(GEN_VCPROJ) \
             --exe \
             --target=$(TOOLCHAIN) \
             --name=test_libaom \
             -D_VARIADIC_MAX=10 \
             --proj-guid=CD837F5F-52D8-4314-A370-895D614166A7 \
             --ver=$(CONFIG_VS_VERSION) \
             --src-path-bare="$(SRC_PATH_BARE)" \
             $(if $(CONFIG_STATIC_MSVCRT),--static-crt) \
             --out=$@ $(INTERNAL_CFLAGS) $(CFLAGS) \
             -I. -I"$(SRC_PATH_BARE)/third_party/googletest/src/googletest/include" \
             $(if $(CONFIG_WEBM_IO),-I"$(SRC_PATH_BARE)/third_party/libwebm") \
             -L. -l$(CODEC_LIB) -l$(GTEST_LIB) $^

 PROJECTS-$(CONFIG_MSVS) += test_libaom.$(VCPROJ_SFX)

 LIBAOM_TEST_BIN := $(addprefix $(TGT_OS:win64=x64)/Release/,$(notdir $(LIBAOM_TEST_BIN)))

 ifneq ($(strip $(TEST_INTRA_PRED_SPEED_OBJS)),)
 PROJECTS-$(CONFIG_MSVS) += test_intra_pred_speed.$(VCPROJ_SFX)
 test_intra_pred_speed.$(VCPROJ_SFX): $(TEST_INTRA_PRED_SPEED_SRCS) aom.$(VCPROJ_SFX) gtest.$(VCPROJ_SFX)
 	@echo "    [CREATE] $@"
 	$(qexec)$(GEN_VCPROJ) \
             --exe \
             --target=$(TOOLCHAIN) \
             --name=test_intra_pred_speed \
             -D_VARIADIC_MAX=10 \
             --proj-guid=CD837F5F-52D8-4314-A370-895D614166A7 \
             --ver=$(CONFIG_VS_VERSION) \
             --src-path-bare="$(SRC_PATH_BARE)" \
             $(if $(CONFIG_STATIC_MSVCRT),--static-crt) \
             --out=$@ $(INTERNAL_CFLAGS) $(CFLAGS) \
             -I. -I"$(SRC_PATH_BARE)/third_party/googletest/src/googletest/include" \
             -L. -l$(CODEC_LIB) -l$(GTEST_LIB) $^
 endif  # TEST_INTRA_PRED_SPEED
 endif
 else

 include $(SRC_PATH_BARE)/third_party/googletest/gtest.mk
 GTEST_SRCS := $(addprefix third_party/,$(call enabled,GTEST_SRCS))
 GTEST_OBJS=$(call objs,$(GTEST_SRCS))
 ifeq ($(filter win%,$(TGT_OS)),$(TGT_OS))
 # Disabling pthreads globally will cause issues on darwin and possibly elsewhere
 $(GTEST_OBJS) $(GTEST_OBJS:.o=.d): CXXFLAGS += -DGTEST_HAS_PTHREAD=0
 endif
 GTEST_INCLUDES := -I$(SRC_PATH_BARE)/third_party/googletest/src/googletest
 GTEST_INCLUDES += -I$(SRC_PATH_BARE)/third_party/googletest/src/googletest/include
 $(GTEST_OBJS) $(GTEST_OBJS:.o=.d): CXXFLAGS += $(GTEST_INCLUDES)
 OBJS-yes += $(GTEST_OBJS)
 LIBS-yes += $(BUILD_PFX)libgtest.a $(BUILD_PFX)libgtest_g.a
 $(BUILD_PFX)libgtest_g.a: $(GTEST_OBJS)

 LIBAOM_TEST_OBJS=$(sort $(call objs,$(LIBAOM_TEST_SRCS)))
 $(LIBAOM_TEST_OBJS) $(LIBAOM_TEST_OBJS:.o=.d): CXXFLAGS += $(GTEST_INCLUDES)
 OBJS-yes += $(LIBAOM_TEST_OBJS)
 BINS-yes += $(LIBAOM_TEST_BIN)

 CODEC_LIB=$(if $(CONFIG_DEBUG_LIBS),aom_g,aom)
 CODEC_LIB_SUF=$(if $(CONFIG_SHARED),$(SHARED_LIB_SUF),.a)
 TEST_LIBS := lib$(CODEC_LIB)$(CODEC_LIB_SUF) libgtest.a
 $(LIBAOM_TEST_BIN): $(TEST_LIBS)
 $(eval $(call linkerxx_template,$(LIBAOM_TEST_BIN), \
               $(LIBAOM_TEST_OBJS) \
               -L. -laom -lgtest $(extralibs) -lm))

 ifneq ($(strip $(TEST_INTRA_PRED_SPEED_OBJS)),)
 $(TEST_INTRA_PRED_SPEED_OBJS) $(TEST_INTRA_PRED_SPEED_OBJS:.o=.d): CXXFLAGS += $(GTEST_INCLUDES)
 OBJS-yes += $(TEST_INTRA_PRED_SPEED_OBJS)
 BINS-yes += $(TEST_INTRA_PRED_SPEED_BIN)

 $(TEST_INTRA_PRED_SPEED_BIN): $(TEST_LIBS)
 $(eval $(call linkerxx_template,$(TEST_INTRA_PRED_SPEED_BIN), \
               $(TEST_INTRA_PRED_SPEED_OBJS) \
               -L. -laom -lgtest $(extralibs) -lm))
 endif  # TEST_INTRA_PRED_SPEED

 endif  # CONFIG_UNIT_TESTS

 # Install test sources only if codec source is included
 INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += $(patsubst $(SRC_PATH_BARE)/%,%,\
     $(shell find $(SRC_PATH_BARE)/third_party/googletest -type f))
 INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += $(LIBAOM_TEST_SRCS)
 INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += $(TEST_INTRA_PRED_SPEED_SRCS)

 define test_shard_template
 test:: test_shard.$(1)
 test-no-data-check:: test_shard_ndc.$(1)
 test_shard.$(1) test_shard_ndc.$(1): $(LIBAOM_TEST_BIN)
 	@set -e; \
 	 export GTEST_SHARD_INDEX=$(1); \
 	 export GTEST_TOTAL_SHARDS=$(2); \
 	 $(LIBAOM_TEST_BIN)
 test_shard.$(1): testdata
 .PHONY: test_shard.$(1)
 endef

 NUM_SHARDS := 10
 SHARDS := 0 1 2 3 4 5 6 7 8 9
 $(foreach s,$(SHARDS),$(eval $(call test_shard_template,$(s),$(NUM_SHARDS))))

 endif

 ##
 ## documentation directives
 ##
 CLEAN-OBJS += libs.doxy
 DOCS-yes += libs.doxy
 libs.doxy: $(CODEC_DOC_SRCS)
 	@echo "    [CREATE] $@"
 	@rm -f $@
 	@echo "INPUT += $^" >> $@
 	@echo "INCLUDE_PATH += ." >> $@;
 	@echo "ENABLED_SECTIONS += $(sort $(CODEC_DOC_SECTIONS))" >> $@

 ## Generate rtcd.h for all objects
 ifeq ($(CONFIG_DEPENDENCY_TRACKING),yes)
 $(OBJS-yes:.o=.d): $(RTCD)
 else
 $(OBJS-yes): $(RTCD)
 endif

 ## Update the global src list
 SRCS += $(CODEC_SRCS) $(LIBAOM_TEST_SRCS) $(GTEST_SRCS)

 ##
 ## aomdec/aomenc tests.
 ##
 ifeq ($(CONFIG_UNIT_TESTS),yes)
 TEST_BIN_PATH = .
 ifeq ($(CONFIG_MSVS),yes)
 # MSVC will build both Debug and Release configurations of tools in a
 # sub directory named for the current target. Assume the user wants to
 # run the Release tools, and assign TEST_BIN_PATH accordingly.
 # TODO(tomfinegan): Is this adequate for ARM?
 # TODO(tomfinegan): Support running the debug versions of tools?
 TEST_BIN_PATH := $(addsuffix /$(TGT_OS:win64=x64)/Release, $(TEST_BIN_PATH))
 endif
 utiltest utiltest-no-data-check:
 	$(qexec)$(SRC_PATH_BARE)/test/aomdec.sh \
 		--test-data-path $(LIBAOM_TEST_DATA_PATH) \
 		--bin-path $(TEST_BIN_PATH)
 	$(qexec)$(SRC_PATH_BARE)/test/aomenc.sh \
 		--test-data-path $(LIBAOM_TEST_DATA_PATH) \
 		--bin-path $(TEST_BIN_PATH)
 utiltest: testdata
 else
 utiltest utiltest-no-data-check:
 	@echo Unit tests must be enabled to make the utiltest target.
 endif

 ##
 ## Example tests.
 ##
 ifeq ($(CONFIG_UNIT_TESTS),yes)
 # All non-MSVC targets output example targets in a sub dir named examples.
 EXAMPLES_BIN_PATH = examples
 ifeq ($(CONFIG_MSVS),yes)
 # MSVC will build both Debug and Release configurations of the examples in a
 # sub directory named for the current target. Assume the user wants to
 # run the Release tools, and assign EXAMPLES_BIN_PATH accordingly.
 # TODO(tomfinegan): Is this adequate for ARM?
 # TODO(tomfinegan): Support running the debug versions of tools?
 EXAMPLES_BIN_PATH := $(TGT_OS:win64=x64)/Release
 endif
 exampletest exampletest-no-data-check: examples
 	$(qexec)$(SRC_PATH_BARE)/test/examples.sh \
 		--test-data-path $(LIBAOM_TEST_DATA_PATH) \
 		--bin-path $(EXAMPLES_BIN_PATH)
 exampletest: testdata
 else
 exampletest exampletest-no-data-check:
 	@echo Unit tests must be enabled to make the exampletest target.
 endif
	##
	## Copyright (c) 2016, Alliance for Open Media. All rights reserved
	##
	## This source code is subject to the terms of the BSD 2 Clause License and
	## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
	## was not distributed with this source code in the LICENSE file, you can
	## obtain it at www.aomedia.org/license/software. If the Alliance for Open
	## Media Patent License 1.0 was not distributed with this source code in the
	## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
	##


	# ARM assembly files are written in RVCT-style. We use some make magic to
	# filter those files to allow GCC compilation
	ifeq ($(ARCH_ARM),yes)
	ASM:=$(if $(filter yes,$(CONFIG_GCC)$(CONFIG_MSVS)),.asm.s,.asm)
	else
	ASM:=.asm
	endif

	#
	# Rule to generate runtime cpu detection files
	#
	define rtcd_h_template
	$$(BUILD_PFX)$(1).h: $$(SRC_PATH_BARE)/$(2)
	@echo " [CREATE] $$@"
	$$(qexec)$$(SRC_PATH_BARE)/build/make/rtcd.pl --arch=$$(TGT_ISA) \
	--sym=$(1) \
	--config=$$(CONFIG_DIR)$$(target)-$$(TOOLCHAIN).mk \
	$$(RTCD_OPTIONS) $$^ > $$@
	CLEAN-OBJS += $$(BUILD_PFX)$(1).h
	RTCD += $$(BUILD_PFX)$(1).h
	endef

	CODEC_SRCS-yes += CHANGELOG
	CODEC_SRCS-yes += libs.mk

	include $(SRC_PATH_BARE)/aom/aom_codec.mk
	CODEC_SRCS-yes += $(addprefix aom/,$(call enabled,API_SRCS))
	CODEC_DOC_SRCS += $(addprefix aom/,$(call enabled,API_DOC_SRCS))

	include $(SRC_PATH_BARE)/aom_mem/aom_mem.mk
	CODEC_SRCS-yes += $(addprefix aom_mem/,$(call enabled,MEM_SRCS))

	include $(SRC_PATH_BARE)/aom_scale/aom_scale.mk
	CODEC_SRCS-yes += $(addprefix aom_scale/,$(call enabled,SCALE_SRCS))

	include $(SRC_PATH_BARE)/aom_ports/aom_ports.mk
	CODEC_SRCS-yes += $(addprefix aom_ports/,$(call enabled,PORTS_SRCS))

	include $(SRC_PATH_BARE)/aom_dsp/aom_dsp.mk
	CODEC_SRCS-yes += $(addprefix aom_dsp/,$(call enabled,DSP_SRCS))

	include $(SRC_PATH_BARE)/aom_util/aom_util.mk
	CODEC_SRCS-yes += $(addprefix aom_util/,$(call enabled,UTIL_SRCS))

	# AV1 make file
	ifeq ($(CONFIG_AV1),yes)
	AV1_PREFIX=av1/
	include $(SRC_PATH_BARE)/$(AV1_PREFIX)av1_common.mk
	endif

	ifeq ($(CONFIG_AV1_ENCODER),yes)
	AV1_PREFIX=av1/
	include $(SRC_PATH_BARE)/$(AV1_PREFIX)av1_cx.mk
	CODEC_SRCS-yes += $(addprefix $(AV1_PREFIX),$(call enabled,AV1_CX_SRCS))
	CODEC_EXPORTS-yes += $(addprefix $(AV1_PREFIX),$(AV1_CX_EXPORTS))
	CODEC_SRCS-yes += $(AV1_PREFIX)av1_cx.mk aom/aom.h aom/aomcx.h
	INSTALL-LIBS-yes += include/aom/aom.h include/aom/aomcx.h
	INSTALL_MAPS += include/aom/% $(SRC_PATH_BARE)/$(AV1_PREFIX)/%
	CODEC_DOC_SRCS += aom/aom.h aom/aomcx.h
	CODEC_DOC_SECTIONS += av1 av1_encoder
	endif

	ifeq ($(CONFIG_AV1_DECODER),yes)
	AV1_PREFIX=av1/
	include $(SRC_PATH_BARE)/$(AV1_PREFIX)av1_dx.mk
	CODEC_SRCS-yes += $(addprefix $(AV1_PREFIX),$(call enabled,AV1_DX_SRCS))
	CODEC_EXPORTS-yes += $(addprefix $(AV1_PREFIX),$(AV1_DX_EXPORTS))
	CODEC_SRCS-yes += $(AV1_PREFIX)av1_dx.mk aom/aom.h aom/aomdx.h
	INSTALL-LIBS-yes += include/aom/aom.h include/aom/aomdx.h
	INSTALL_MAPS += include/aom/% $(SRC_PATH_BARE)/$(AV1_PREFIX)/%
	CODEC_DOC_SRCS += aom/aom.h aom/aomdx.h
	CODEC_DOC_SECTIONS += av1 av1_decoder
	endif

	AV1_PREFIX=av1/
	$(BUILD_PFX)$(AV1_PREFIX)%.c.o: CFLAGS += -Wextra

	ifeq ($(CONFIG_ENCODERS),yes)
	CODEC_DOC_SECTIONS += encoder
	endif
	ifeq ($(CONFIG_DECODERS),yes)
	CODEC_DOC_SECTIONS += decoder
	endif


	ifeq ($(CONFIG_MSVS),yes)
	CODEC_LIB=$(if $(CONFIG_STATIC_MSVCRT),aommt,aommd)
	GTEST_LIB=$(if $(CONFIG_STATIC_MSVCRT),gtestmt,gtestmd)
	# This variable uses deferred expansion intentionally, since the results of
	# $(wildcard) may change during the course of the Make.
	VS_PLATFORMS = $(foreach d,$(wildcard */Release/$(CODEC_LIB).lib),$(word 1,$(subst /, ,$(d))))
	endif

	# The following pairs define a mapping of locations in the distribution
	# tree to locations in the source/build trees.
	INSTALL_MAPS += include/aom/% $(SRC_PATH_BARE)/aom/%
	INSTALL_MAPS += include/aom/% $(SRC_PATH_BARE)/aom_ports/%
	INSTALL_MAPS += $(LIBSUBDIR)/% %
	INSTALL_MAPS += src/% $(SRC_PATH_BARE)/%
	ifeq ($(CONFIG_MSVS),yes)
	INSTALL_MAPS += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/% $(p)/Release/%)
	INSTALL_MAPS += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/% $(p)/Debug/%)
	endif

	CODEC_SRCS-yes += build/make/version.sh
	CODEC_SRCS-yes += build/make/rtcd.pl
	CODEC_SRCS-yes += aom_ports/emmintrin_compat.h
	CODEC_SRCS-yes += aom_ports/mem_ops.h
	CODEC_SRCS-yes += aom_ports/mem_ops_aligned.h
	CODEC_SRCS-yes += aom_ports/aom_once.h
	CODEC_SRCS-yes += $(BUILD_PFX)aom_config.c
	INSTALL-SRCS-no += $(BUILD_PFX)aom_config.c
	ifeq ($(ARCH_X86)$(ARCH_X86_64),yes)
	INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += third_party/x86inc/x86inc.asm
	endif
	CODEC_EXPORTS-yes += aom/exports_com
	CODEC_EXPORTS-$(CONFIG_ENCODERS) += aom/exports_enc
	CODEC_EXPORTS-$(CONFIG_DECODERS) += aom/exports_dec

	INSTALL-LIBS-yes += include/aom/aom_codec.h
	INSTALL-LIBS-yes += include/aom/aom_frame_buffer.h
	INSTALL-LIBS-yes += include/aom/aom_image.h
	INSTALL-LIBS-yes += include/aom/aom_integer.h
	INSTALL-LIBS-$(CONFIG_DECODERS) += include/aom/aom_decoder.h
	INSTALL-LIBS-$(CONFIG_ENCODERS) += include/aom/aom_encoder.h
	ifeq ($(CONFIG_EXTERNAL_BUILD),yes)
	ifeq ($(CONFIG_MSVS),yes)
	INSTALL-LIBS-yes += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/$(CODEC_LIB).lib)
	INSTALL-LIBS-$(CONFIG_DEBUG_LIBS) += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/$(CODEC_LIB)d.lib)
	INSTALL-LIBS-$(CONFIG_SHARED) += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/aom.dll)
	INSTALL-LIBS-$(CONFIG_SHARED) += $(foreach p,$(VS_PLATFORMS),$(LIBSUBDIR)/$(p)/aom.exp)
	endif
	else
	INSTALL-LIBS-$(CONFIG_STATIC) += $(LIBSUBDIR)/libaom.a
	INSTALL-LIBS-$(CONFIG_DEBUG_LIBS) += $(LIBSUBDIR)/libaom_g.a
	endif

	CODEC_SRCS=$(call enabled,CODEC_SRCS)
	INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += $(CODEC_SRCS)
	INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += $(call enabled,CODEC_EXPORTS)


	# Generate a list of all enabled sources, in particular for exporting to gyp
	# based build systems.
	libaom_srcs.txt:
	@echo " [CREATE] $@"
	@echo $(CODEC_SRCS) \| xargs -n1 echo \| LC_ALL=C sort -u > $@
	CLEAN-OBJS += libaom_srcs.txt


	ifeq ($(CONFIG_EXTERNAL_BUILD),yes)
	ifeq ($(CONFIG_MSVS),yes)

	aom.def: $(call enabled,CODEC_EXPORTS)
	@echo " [CREATE] $@"
	$(qexec)$(SRC_PATH_BARE)/build/make/gen_msvs_def.sh\
	--name=aom\
	--out=$@ $^
	CLEAN-OBJS += aom.def

	# Assembly files that are included, but don't define symbols themselves.
	# Filtered out to avoid Visual Studio build warnings.
	ASM_INCLUDES := \
	third_party/x86inc/x86inc.asm \
	aom_config.asm \
	aom_ports/x86_abi_support.asm \

	aom.$(VCPROJ_SFX): $(CODEC_SRCS) aom.def
	@echo " [CREATE] $@"
	$(qexec)$(GEN_VCPROJ) \
	$(if $(CONFIG_SHARED),--dll,--lib) \
	--target=$(TOOLCHAIN) \
	$(if $(CONFIG_STATIC_MSVCRT),--static-crt) \
	--name=aom \
	--proj-guid=DCE19DAF-69AC-46DB-B14A-39F0FAA5DB74 \
	--module-def=aom.def \
	--ver=$(CONFIG_VS_VERSION) \
	--src-path-bare="$(SRC_PATH_BARE)" \
	--out=$@ $(CFLAGS) \
	$(filter-out $(addprefix %, $(ASM_INCLUDES)), $^) \
	--src-path-bare="$(SRC_PATH_BARE)" \

	PROJECTS-yes += aom.$(VCPROJ_SFX)

	aom.$(VCPROJ_SFX): aom_config.asm
	aom.$(VCPROJ_SFX): $(RTCD)

	endif
	else
	LIBAOM_OBJS=$(call objs,$(CODEC_SRCS))
	OBJS-yes += $(LIBAOM_OBJS)
	LIBS-$(if yes,$(CONFIG_STATIC)) += $(BUILD_PFX)libaom.a $(BUILD_PFX)libaom_g.a
	$(BUILD_PFX)libaom_g.a: $(LIBAOM_OBJS)

	SO_VERSION_MAJOR := 3
	SO_VERSION_MINOR := 0
	SO_VERSION_PATCH := 0
	ifeq ($(filter darwin%,$(TGT_OS)),$(TGT_OS))
	LIBAOM_SO := libaom.$(SO_VERSION_MAJOR).dylib
	SHARED_LIB_SUF := .dylib
	EXPORT_FILE := libaom.syms
	LIBAOM_SO_SYMLINKS := $(addprefix $(LIBSUBDIR)/, \
	libaom.dylib )
	else
	ifeq ($(filter iphonesimulator%,$(TGT_OS)),$(TGT_OS))
	LIBAOM_SO := libaom.$(SO_VERSION_MAJOR).dylib
	SHARED_LIB_SUF := .dylib
	EXPORT_FILE := libaom.syms
	LIBAOM_SO_SYMLINKS := $(addprefix $(LIBSUBDIR)/, libaom.dylib)
	else
	ifeq ($(filter os2%,$(TGT_OS)),$(TGT_OS))
	LIBAOM_SO := libaom$(SO_VERSION_MAJOR).dll
	SHARED_LIB_SUF := _dll.a
	EXPORT_FILE := libaom.def
	LIBAOM_SO_SYMLINKS :=
	LIBAOM_SO_IMPLIB := libaom_dll.a
	else
	LIBAOM_SO := libaom.so.$(SO_VERSION_MAJOR).$(SO_VERSION_MINOR).$(SO_VERSION_PATCH)
	SHARED_LIB_SUF := .so
	EXPORT_FILE := libaom.ver
	LIBAOM_SO_SYMLINKS := $(addprefix $(LIBSUBDIR)/, \
	libaom.so libaom.so.$(SO_VERSION_MAJOR) \
	libaom.so.$(SO_VERSION_MAJOR).$(SO_VERSION_MINOR))
	endif
	endif
	endif

	LIBS-$(CONFIG_SHARED) += $(BUILD_PFX)$(LIBAOM_SO)\
	$(notdir $(LIBAOM_SO_SYMLINKS)) \
	$(if $(LIBAOM_SO_IMPLIB), $(BUILD_PFX)$(LIBAOM_SO_IMPLIB))
	$(BUILD_PFX)$(LIBAOM_SO): $(LIBAOM_OBJS) $(EXPORT_FILE)
	$(BUILD_PFX)$(LIBAOM_SO): extralibs += -lm
	$(BUILD_PFX)$(LIBAOM_SO): SONAME = libaom.so.$(SO_VERSION_MAJOR)
	$(BUILD_PFX)$(LIBAOM_SO): EXPORTS_FILE = $(EXPORT_FILE)

	libaom.ver: $(call enabled,CODEC_EXPORTS)
	@echo " [CREATE] $@"
	$(qexec)echo "{ global:" > $@
	$(qexec)for f in $?; do awk '{print $$2";"}' < $$f >>$@; done
	$(qexec)echo "local: *; };" >> $@
	CLEAN-OBJS += libaom.ver

	libaom.syms: $(call enabled,CODEC_EXPORTS)
	@echo " [CREATE] $@"
	$(qexec)awk '{print "_"$$2}' $^ >$@
	CLEAN-OBJS += libaom.syms

	libaom.def: $(call enabled,CODEC_EXPORTS)
	@echo " [CREATE] $@"
	$(qexec)echo LIBRARY $(LIBAOM_SO:.dll=) INITINSTANCE TERMINSTANCE > $@
	$(qexec)echo "DATA MULTIPLE NONSHARED" >> $@
	$(qexec)echo "EXPORTS" >> $@
	$(qexec)awk '{print "_"$$2}' $^ >>$@
	CLEAN-OBJS += libaom.def

	libaom_dll.a: $(LIBAOM_SO)
	@echo " [IMPLIB] $@"
	$(qexec)emximp -o $@ $<
	CLEAN-OBJS += libaom_dll.a

	define libaom_symlink_template
	$(1): $(2)
	@echo " [LN] $(2) $$@"
	$(qexec)mkdir -p $$(dir $$@)
	$(qexec)ln -sf $(2) $$@
	endef

	$(eval $(call libaom_symlink_template,\
	$(addprefix $(BUILD_PFX),$(notdir $(LIBAOM_SO_SYMLINKS))),\
	$(BUILD_PFX)$(LIBAOM_SO)))
	$(eval $(call libaom_symlink_template,\
	$(addprefix $(DIST_DIR)/,$(LIBAOM_SO_SYMLINKS)),\
	$(LIBAOM_SO)))


	INSTALL-LIBS-$(CONFIG_SHARED) += $(LIBAOM_SO_SYMLINKS)
	INSTALL-LIBS-$(CONFIG_SHARED) += $(LIBSUBDIR)/$(LIBAOM_SO)
	INSTALL-LIBS-$(CONFIG_SHARED) += $(if $(LIBAOM_SO_IMPLIB),$(LIBSUBDIR)/$(LIBAOM_SO_IMPLIB))


	LIBS-yes += aom.pc
	aom.pc: config.mk libs.mk
	@echo " [CREATE] $@"
	$(qexec)echo '# pkg-config file from libaom $(VERSION_STRING)' > $@
	$(qexec)echo 'prefix=$(PREFIX)' >> $@
	$(qexec)echo 'exec_prefix=$${prefix}' >> $@
	$(qexec)echo 'libdir=$${prefix}/$(LIBSUBDIR)' >> $@
	$(qexec)echo 'includedir=$${prefix}/include' >> $@
	$(qexec)echo '' >> $@
	$(qexec)echo 'Name: aom' >> $@
	$(qexec)echo 'Description: WebM Project AVx codec implementation' >> $@
	$(qexec)echo 'Version: $(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_PATCH)' >> $@
	$(qexec)echo 'Requires:' >> $@
	$(qexec)echo 'Conflicts:' >> $@
	$(qexec)echo 'Libs: -L$${libdir} -laom -lm' >> $@
	ifeq ($(HAVE_PTHREAD_H),yes)
	$(qexec)echo 'Libs.private: -lm -lpthread' >> $@
	else
	$(qexec)echo 'Libs.private: -lm' >> $@
	endif
	$(qexec)echo 'Cflags: -I$${includedir}' >> $@
	INSTALL-LIBS-yes += $(LIBSUBDIR)/pkgconfig/aom.pc
	INSTALL_MAPS += $(LIBSUBDIR)/pkgconfig/%.pc %.pc
	CLEAN-OBJS += aom.pc
	endif

	#
	# Rule to make assembler configuration file from C configuration file
	#
	ifeq ($(ARCH_X86)$(ARCH_X86_64),yes)
	# YASM
	$(BUILD_PFX)aom_config.asm: $(BUILD_PFX)aom_config.h
	@echo " [CREATE] $@"
	@egrep "#define [A-Z0-9_]+ [01]" $< \
	\| awk '{print $$2 " equ " $$3}' > $@
	else
	ADS2GAS=$(if $(filter yes,$(CONFIG_GCC)),\| $(ASM_CONVERSION))
	$(BUILD_PFX)aom_config.asm: $(BUILD_PFX)aom_config.h
	@echo " [CREATE] $@"
	@egrep "#define [A-Z0-9_]+ [01]" $< \
	\| awk '{print $$2 " EQU " $$3}' $(ADS2GAS) > $@
	@echo " END" $(ADS2GAS) >> $@
	CLEAN-OBJS += $(BUILD_PFX)aom_config.asm
	endif

	#
	# Add assembler dependencies for configuration.
	#
	$(filter %.s.o,$(OBJS-yes)): $(BUILD_PFX)aom_config.asm
	$(filter %$(ASM).o,$(OBJS-yes)): $(BUILD_PFX)aom_config.asm


	$(shell $(SRC_PATH_BARE)/build/make/version.sh "$(SRC_PATH_BARE)" $(BUILD_PFX)aom_version.h)
	CLEAN-OBJS += $(BUILD_PFX)aom_version.h

	#
	# Add include path for libwebm sources.
	#
	ifeq ($(CONFIG_WEBM_IO),yes)
	CXXFLAGS += -I$(SRC_PATH_BARE)/third_party/libwebm
	endif

	##
	## libaom test directives
	##
	ifeq ($(CONFIG_UNIT_TESTS),yes)
	LIBAOM_TEST_DATA_PATH ?= .

	include $(SRC_PATH_BARE)/test/test.mk
	LIBAOM_TEST_SRCS=$(addprefix test/,$(call enabled,LIBAOM_TEST_SRCS))
	LIBAOM_TEST_BIN=./test_libaom$(EXE_SFX)
	LIBAOM_TEST_DATA=$(addprefix $(LIBAOM_TEST_DATA_PATH)/,\
	$(call enabled,LIBAOM_TEST_DATA))
	libaom_test_data_url=https://storage.googleapis.com/downloads.webmproject.org/test_data/libvpx/$(1)

	TEST_INTRA_PRED_SPEED_BIN=./test_intra_pred_speed$(EXE_SFX)
	TEST_INTRA_PRED_SPEED_SRCS=$(addprefix test/,$(call enabled,TEST_INTRA_PRED_SPEED_SRCS))
	TEST_INTRA_PRED_SPEED_OBJS := $(sort $(call objs,$(TEST_INTRA_PRED_SPEED_SRCS)))

	libaom_test_srcs.txt:
	@echo " [CREATE] $@"
	@echo $(LIBAOM_TEST_SRCS) \| xargs -n1 echo \| LC_ALL=C sort -u > $@
	CLEAN-OBJS += libaom_test_srcs.txt

	$(LIBAOM_TEST_DATA): $(SRC_PATH_BARE)/test/test-data.sha1
	@echo " [DOWNLOAD] $@"
	$(qexec)trap 'rm -f $@' INT TERM &&\
	curl -L -o $@ $(call libaom_test_data_url,$(@F))

	testdata:: $(LIBAOM_TEST_DATA)
	$(qexec)[ -x "$$(which sha1sum)" ] && sha1sum=sha1sum;\
	[ -x "$$(which shasum)" ] && sha1sum=shasum;\
	[ -x "$$(which sha1)" ] && sha1sum=sha1;\
	if [ -n "$${sha1sum}" ]; then\
	set -e;\
	echo "Checking test data:";\
	for f in $(call enabled,LIBAOM_TEST_DATA); do\
	grep $$f $(SRC_PATH_BARE)/test/test-data.sha1 \|\
	(cd $(LIBAOM_TEST_DATA_PATH); $${sha1sum} -c);\
	done; \
	else\
	echo "Skipping test data integrity check, sha1sum not found.";\
	fi

	ifeq ($(CONFIG_EXTERNAL_BUILD),yes)
	ifeq ($(CONFIG_MSVS),yes)
	gtest.$(VCPROJ_SFX): $(SRC_PATH_BARE)/third_party/googletest/src/googletest/src/gtest-all.cc
	@echo " [CREATE] $@"
	$(qexec)$(GEN_VCPROJ) \
	--lib \
	--target=$(TOOLCHAIN) \
	$(if $(CONFIG_STATIC_MSVCRT),--static-crt) \
	--name=gtest \
	--proj-guid=EC00E1EC-AF68-4D92-A255-181690D1C9B1 \
	--ver=$(CONFIG_VS_VERSION) \
	--src-path-bare="$(SRC_PATH_BARE)" \
	-D_VARIADIC_MAX=10 \
	--out=gtest.$(VCPROJ_SFX) \
	$(SRC_PATH_BARE)/third_party/googletest/src/googletest/src/gtest-all.cc \
	-I. -I"$(SRC_PATH_BARE)/third_party/googletest/src/googletest/include" \
	-I"$(SRC_PATH_BARE)/third_party/googletest/src/googletest"

	PROJECTS-$(CONFIG_MSVS) += gtest.$(VCPROJ_SFX)

	test_libaom.$(VCPROJ_SFX): $(LIBAOM_TEST_SRCS) aom.$(VCPROJ_SFX) gtest.$(VCPROJ_SFX)
	@echo " [CREATE] $@"
	$(qexec)$(GEN_VCPROJ) \
	--exe \
	--target=$(TOOLCHAIN) \
	--name=test_libaom \
	-D_VARIADIC_MAX=10 \
	--proj-guid=CD837F5F-52D8-4314-A370-895D614166A7 \
	--ver=$(CONFIG_VS_VERSION) \
	--src-path-bare="$(SRC_PATH_BARE)" \
	$(if $(CONFIG_STATIC_MSVCRT),--static-crt) \
	--out=$@ $(INTERNAL_CFLAGS) $(CFLAGS) \
	-I. -I"$(SRC_PATH_BARE)/third_party/googletest/src/googletest/include" \
	$(if $(CONFIG_WEBM_IO),-I"$(SRC_PATH_BARE)/third_party/libwebm") \
	-L. -l$(CODEC_LIB) -l$(GTEST_LIB) $^

	PROJECTS-$(CONFIG_MSVS) += test_libaom.$(VCPROJ_SFX)

	LIBAOM_TEST_BIN := $(addprefix $(TGT_OS:win64=x64)/Release/,$(notdir $(LIBAOM_TEST_BIN)))

	ifneq ($(strip $(TEST_INTRA_PRED_SPEED_OBJS)),)
	PROJECTS-$(CONFIG_MSVS) += test_intra_pred_speed.$(VCPROJ_SFX)
	test_intra_pred_speed.$(VCPROJ_SFX): $(TEST_INTRA_PRED_SPEED_SRCS) aom.$(VCPROJ_SFX) gtest.$(VCPROJ_SFX)
	@echo " [CREATE] $@"
	$(qexec)$(GEN_VCPROJ) \
	--exe \
	--target=$(TOOLCHAIN) \
	--name=test_intra_pred_speed \
	-D_VARIADIC_MAX=10 \
	--proj-guid=CD837F5F-52D8-4314-A370-895D614166A7 \
	--ver=$(CONFIG_VS_VERSION) \
	--src-path-bare="$(SRC_PATH_BARE)" \
	$(if $(CONFIG_STATIC_MSVCRT),--static-crt) \
	--out=$@ $(INTERNAL_CFLAGS) $(CFLAGS) \
	-I. -I"$(SRC_PATH_BARE)/third_party/googletest/src/googletest/include" \
	-L. -l$(CODEC_LIB) -l$(GTEST_LIB) $^
	endif # TEST_INTRA_PRED_SPEED
	endif
	else

	include $(SRC_PATH_BARE)/third_party/googletest/gtest.mk
	GTEST_SRCS := $(addprefix third_party/,$(call enabled,GTEST_SRCS))
	GTEST_OBJS=$(call objs,$(GTEST_SRCS))
	ifeq ($(filter win%,$(TGT_OS)),$(TGT_OS))
	# Disabling pthreads globally will cause issues on darwin and possibly elsewhere
	$(GTEST_OBJS) $(GTEST_OBJS:.o=.d): CXXFLAGS += -DGTEST_HAS_PTHREAD=0
	endif
	GTEST_INCLUDES := -I$(SRC_PATH_BARE)/third_party/googletest/src/googletest
	GTEST_INCLUDES += -I$(SRC_PATH_BARE)/third_party/googletest/src/googletest/include
	$(GTEST_OBJS) $(GTEST_OBJS:.o=.d): CXXFLAGS += $(GTEST_INCLUDES)
	OBJS-yes += $(GTEST_OBJS)
	LIBS-yes += $(BUILD_PFX)libgtest.a $(BUILD_PFX)libgtest_g.a
	$(BUILD_PFX)libgtest_g.a: $(GTEST_OBJS)

	LIBAOM_TEST_OBJS=$(sort $(call objs,$(LIBAOM_TEST_SRCS)))
	$(LIBAOM_TEST_OBJS) $(LIBAOM_TEST_OBJS:.o=.d): CXXFLAGS += $(GTEST_INCLUDES)
	OBJS-yes += $(LIBAOM_TEST_OBJS)
	BINS-yes += $(LIBAOM_TEST_BIN)

	CODEC_LIB=$(if $(CONFIG_DEBUG_LIBS),aom_g,aom)
	CODEC_LIB_SUF=$(if $(CONFIG_SHARED),$(SHARED_LIB_SUF),.a)
	TEST_LIBS := lib$(CODEC_LIB)$(CODEC_LIB_SUF) libgtest.a
	$(LIBAOM_TEST_BIN): $(TEST_LIBS)
	$(eval $(call linkerxx_template,$(LIBAOM_TEST_BIN), \
	$(LIBAOM_TEST_OBJS) \
	-L. -laom -lgtest $(extralibs) -lm))

	ifneq ($(strip $(TEST_INTRA_PRED_SPEED_OBJS)),)
	$(TEST_INTRA_PRED_SPEED_OBJS) $(TEST_INTRA_PRED_SPEED_OBJS:.o=.d): CXXFLAGS += $(GTEST_INCLUDES)
	OBJS-yes += $(TEST_INTRA_PRED_SPEED_OBJS)
	BINS-yes += $(TEST_INTRA_PRED_SPEED_BIN)

	$(TEST_INTRA_PRED_SPEED_BIN): $(TEST_LIBS)
	$(eval $(call linkerxx_template,$(TEST_INTRA_PRED_SPEED_BIN), \
	$(TEST_INTRA_PRED_SPEED_OBJS) \
	-L. -laom -lgtest $(extralibs) -lm))
	endif # TEST_INTRA_PRED_SPEED

	endif # CONFIG_UNIT_TESTS

	# Install test sources only if codec source is included
	INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += $(patsubst $(SRC_PATH_BARE)/%,%,\
	$(shell find $(SRC_PATH_BARE)/third_party/googletest -type f))
	INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += $(LIBAOM_TEST_SRCS)
	INSTALL-SRCS-$(CONFIG_CODEC_SRCS) += $(TEST_INTRA_PRED_SPEED_SRCS)

	define test_shard_template
	test:: test_shard.$(1)
	test-no-data-check:: test_shard_ndc.$(1)
	test_shard.$(1) test_shard_ndc.$(1): $(LIBAOM_TEST_BIN)
	@set -e; \
	export GTEST_SHARD_INDEX=$(1); \
	export GTEST_TOTAL_SHARDS=$(2); \
	$(LIBAOM_TEST_BIN)
	test_shard.$(1): testdata
	.PHONY: test_shard.$(1)
	endef

	NUM_SHARDS := 10
	SHARDS := 0 1 2 3 4 5 6 7 8 9
	$(foreach s,$(SHARDS),$(eval $(call test_shard_template,$(s),$(NUM_SHARDS))))

	endif

	##
	## documentation directives
	##
	CLEAN-OBJS += libs.doxy
	DOCS-yes += libs.doxy
	libs.doxy: $(CODEC_DOC_SRCS)
	@echo " [CREATE] $@"
	@rm -f $@
	@echo "INPUT += $^" >> $@
	@echo "INCLUDE_PATH += ." >> $@;
	@echo "ENABLED_SECTIONS += $(sort $(CODEC_DOC_SECTIONS))" >> $@

	## Generate rtcd.h for all objects
	ifeq ($(CONFIG_DEPENDENCY_TRACKING),yes)
	$(OBJS-yes:.o=.d): $(RTCD)
	else
	$(OBJS-yes): $(RTCD)
	endif

	## Update the global src list
	SRCS += $(CODEC_SRCS) $(LIBAOM_TEST_SRCS) $(GTEST_SRCS)

	##
	## aomdec/aomenc tests.
	##
	ifeq ($(CONFIG_UNIT_TESTS),yes)
	TEST_BIN_PATH = .
	ifeq ($(CONFIG_MSVS),yes)
	# MSVC will build both Debug and Release configurations of tools in a
	# sub directory named for the current target. Assume the user wants to
	# run the Release tools, and assign TEST_BIN_PATH accordingly.
	# TODO(tomfinegan): Is this adequate for ARM?
	# TODO(tomfinegan): Support running the debug versions of tools?
	TEST_BIN_PATH := $(addsuffix /$(TGT_OS:win64=x64)/Release, $(TEST_BIN_PATH))
	endif
	utiltest utiltest-no-data-check:
	$(qexec)$(SRC_PATH_BARE)/test/aomdec.sh \
	--test-data-path $(LIBAOM_TEST_DATA_PATH) \
	--bin-path $(TEST_BIN_PATH)
	$(qexec)$(SRC_PATH_BARE)/test/aomenc.sh \
	--test-data-path $(LIBAOM_TEST_DATA_PATH) \
	--bin-path $(TEST_BIN_PATH)
	utiltest: testdata
	else
	utiltest utiltest-no-data-check:
	@echo Unit tests must be enabled to make the utiltest target.
	endif

	##
	## Example tests.
	##
	ifeq ($(CONFIG_UNIT_TESTS),yes)
	# All non-MSVC targets output example targets in a sub dir named examples.
	EXAMPLES_BIN_PATH = examples
	ifeq ($(CONFIG_MSVS),yes)
	# MSVC will build both Debug and Release configurations of the examples in a
	# sub directory named for the current target. Assume the user wants to
	# run the Release tools, and assign EXAMPLES_BIN_PATH accordingly.
	# TODO(tomfinegan): Is this adequate for ARM?
	# TODO(tomfinegan): Support running the debug versions of tools?
	EXAMPLES_BIN_PATH := $(TGT_OS:win64=x64)/Release
	endif
	exampletest exampletest-no-data-check: examples
	$(qexec)$(SRC_PATH_BARE)/test/examples.sh \
	--test-data-path $(LIBAOM_TEST_DATA_PATH) \
	--bin-path $(EXAMPLES_BIN_PATH)
	exampletest: testdata
	else
	exampletest exampletest-no-data-check:
	@echo Unit tests must be enabled to make the exampletest target.
	endif