build/make/Makefile - 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.

            
            ##


            include config.mk

            
            quiet?=true

            
            ifeq ($(target),)

            
            # If a target wasn't specified, invoke for all enabled targets.

            
            .DEFAULT:

            
            	@for t in $(ALL_TARGETS); do \

            
            	     $(MAKE) --no-print-directory target=$$t $(MAKECMDGOALS) || exit $$?;\

            
                    done

            
            all: .DEFAULT

            
            clean:: .DEFAULT

            
            exampletest: .DEFAULT

            
            install:: .DEFAULT

            
            test:: .DEFAULT

            
            test-no-data-check:: .DEFAULT

            
            testdata:: .DEFAULT

            
            utiltest: .DEFAULT

            
            exampletest-no-data-check utiltest-no-data-check: .DEFAULT

            
            test_%: .DEFAULT ;


            # Note: md5sum is not installed on OS X, but openssl is. Openssl may not be

            
            # installed on cygwin, so we need to autodetect here.

            
            md5sum := $(firstword $(wildcard \

            
                      $(foreach e,md5sum openssl,\

            
                      $(foreach p,$(subst :, ,$(PATH)),$(p)/$(e)*))\

            
                      ))

            
            md5sum := $(if $(filter %openssl,$(md5sum)),$(md5sum) dgst -md5,$(md5sum))


            TGT_CC:=$(word 3, $(subst -, ,$(TOOLCHAIN)))

            
            dist:

            
            	@for t in $(ALL_TARGETS); do \

            
            	     $(MAKE) --no-print-directory target=$$t $(MAKECMDGOALS) || exit $$?;\

            
                    done

            
                    # Run configure for the user with the current toolchain.

            
            	@if [ -d "$(DIST_DIR)/src" ]; then \

            
                        mkdir -p "$(DIST_DIR)/build"; \

            
                        cd "$(DIST_DIR)/build"; \

            
                        echo "Rerunning configure $(CONFIGURE_ARGS)"; \

            
                        ../src/configure $(CONFIGURE_ARGS); \

            
                        $(if $(filter vs%,$(TGT_CC)),make NO_LAUNCH_DEVENV=1;) \

            
                    fi

            
            	@if [ -d "$(DIST_DIR)" ]; then \

            
                        echo "    [MD5SUM] $(DIST_DIR)"; \

            
            	    cd $(DIST_DIR) && \

            
            	    $(md5sum) `find . -name md5sums.txt -prune -o -type f -print` \

            
                            | sed -e 's/MD5(\(.*\))= \([0-9a-f]\{32\}\)/\2  \1/' \

            
                            > md5sums.txt;\

            
                    fi

            
            endif


            # Since we invoke make recursively for multiple targets we need to include the

            
            # .mk file for the correct target, but only when $(target) is non-empty.

            
            ifneq ($(target),)

            
            include $(target)-$(TOOLCHAIN).mk

            
            endif

            
            BUILD_ROOT?=.

            
            VPATH=$(SRC_PATH_BARE)

            
            CFLAGS+=-I$(BUILD_PFX)$(BUILD_ROOT) -I$(SRC_PATH)

            
            CXXFLAGS+=-I$(BUILD_PFX)$(BUILD_ROOT) -I$(SRC_PATH)

            
            ASFLAGS+=-I$(BUILD_PFX)$(BUILD_ROOT)/ -I$(SRC_PATH)/

            
            DIST_DIR?=dist

            
            HOSTCC?=gcc

            
            TGT_ISA:=$(word 1, $(subst -, ,$(TOOLCHAIN)))

            
            TGT_OS:=$(word 2, $(subst -, ,$(TOOLCHAIN)))

            
            TGT_CC:=$(word 3, $(subst -, ,$(TOOLCHAIN)))

            
            quiet:=$(if $(or $(verbose), $(V)),, yes)

            
            qexec=$(if $(quiet),@)


            # Cancel built-in implicit rules

            
            %: %.o

            
            %.asm:

            
            %.a:

            
            %: %.cc


            #

            
            # Common rules"

            
            #

            
            .PHONY: all

            
            all:


            .PHONY: clean

            
            clean::

            
            	rm -f $(OBJS-yes) $(OBJS-yes:.o=.d) $(OBJS-yes:.asm.s.o=.asm.s)

            
            	rm -f $(CLEAN-OBJS)


            .PHONY: clean

            
            distclean: clean

            
            	if [ -z "$(target)" ]; then \

            
                  rm -f Makefile; \

            
                  rm -f config.log config.mk; \

            
                  rm -f aom_config.[hc] aom_config.asm; \

            
                else \

            
                  rm -f $(target)-$(TOOLCHAIN).mk; \

            
                fi


            .PHONY: dist

            
            dist:

            
            .PHONY: exampletest

            
            exampletest:

            
            .PHONY: install

            
            install::

            
            .PHONY: test

            
            test::

            
            .PHONY: testdata

            
            testdata::

            
            .PHONY: utiltest

            
            utiltest:

            
            .PHONY: test-no-data-check exampletest-no-data-check utiltest-no-data-check

            
            test-no-data-check::

            
            exampletest-no-data-check utiltest-no-data-check:


            # Force to realign stack always on OS/2

            
            ifeq ($(TOOLCHAIN), x86-os2-gcc)

            
            CFLAGS += -mstackrealign

            
            endif


            $(BUILD_PFX)%_mmx.c.d: CFLAGS += -mmmx

            
            $(BUILD_PFX)%_mmx.c.o: CFLAGS += -mmmx

            
            $(BUILD_PFX)%_sse2.c.d: CFLAGS += -msse2

            
            $(BUILD_PFX)%_sse2.c.o: CFLAGS += -msse2

            
            $(BUILD_PFX)%_sse3.c.d: CFLAGS += -msse3

            
            $(BUILD_PFX)%_sse3.c.o: CFLAGS += -msse3

            
            $(BUILD_PFX)%_ssse3.c.d: CFLAGS += -mssse3

            
            $(BUILD_PFX)%_ssse3.c.o: CFLAGS += -mssse3

            
            $(BUILD_PFX)%_sse4.c.d: CFLAGS += -msse4.1

            
            $(BUILD_PFX)%_sse4.c.o: CFLAGS += -msse4.1

            
            $(BUILD_PFX)%_avx.c.d: CFLAGS += -mavx

            
            $(BUILD_PFX)%_avx.c.o: CFLAGS += -mavx

            
            $(BUILD_PFX)%_avx2.c.d: CFLAGS += -mavx2

            
            $(BUILD_PFX)%_avx2.c.o: CFLAGS += -mavx2


            $(BUILD_PFX)%.c.d: %.c

            
            	$(if $(quiet),@echo "    [DEP] $@")

            
            	$(qexec)mkdir -p $(dir $@)

            
            	$(qexec)$(CC) $(INTERNAL_CFLAGS) $(CFLAGS) -M $< | $(fmt_deps) > $@


            $(BUILD_PFX)%.c.o: %.c

            
            	$(if $(quiet),@echo "    [CC] $@")

            
            	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))

            
            	$(qexec)$(CC) $(INTERNAL_CFLAGS) $(CFLAGS) -c -o $@ $<


            $(BUILD_PFX)%.cc.d: %.cc

            
            	$(if $(quiet),@echo "    [DEP] $@")

            
            	$(qexec)mkdir -p $(dir $@)

            
            	$(qexec)$(CXX) $(INTERNAL_CFLAGS) $(CXXFLAGS) -M $< | $(fmt_deps) > $@


            $(BUILD_PFX)%.cc.o: %.cc

            
            	$(if $(quiet),@echo "    [CXX] $@")

            
            	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))

            
            	$(qexec)$(CXX) $(INTERNAL_CFLAGS) $(CXXFLAGS) -c -o $@ $<


            $(BUILD_PFX)%.cpp.d: %.cpp

            
            	$(if $(quiet),@echo "    [DEP] $@")

            
            	$(qexec)mkdir -p $(dir $@)

            
            	$(qexec)$(CXX) $(INTERNAL_CFLAGS) $(CXXFLAGS) -M $< | $(fmt_deps) > $@


            $(BUILD_PFX)%.cpp.o: %.cpp

            
            	$(if $(quiet),@echo "    [CXX] $@")

            
            	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))

            
            	$(qexec)$(CXX) $(INTERNAL_CFLAGS) $(CXXFLAGS) -c -o $@ $<


            $(BUILD_PFX)%.asm.d: %.asm

            
            	$(if $(quiet),@echo "    [DEP] $@")

            
            	$(qexec)mkdir -p $(dir $@)

            
            	$(qexec)$(SRC_PATH_BARE)/build/make/gen_asm_deps.sh \

            
                        --build-pfx=$(BUILD_PFX) --depfile=$@ $(ASFLAGS) $< > $@


            $(BUILD_PFX)%.asm.o: %.asm

            
            	$(if $(quiet),@echo "    [AS] $@")

            
            	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))

            
            	$(qexec)$(AS) $(ASFLAGS) -o $@ $<


            $(BUILD_PFX)%.s.d: %.s

            
            	$(if $(quiet),@echo "    [DEP] $@")

            
            	$(qexec)mkdir -p $(dir $@)

            
            	$(qexec)$(SRC_PATH_BARE)/build/make/gen_asm_deps.sh \

            
                        --build-pfx=$(BUILD_PFX) --depfile=$@ $(ASFLAGS) $< > $@


            $(BUILD_PFX)%.s.o: %.s

            
            	$(if $(quiet),@echo "    [AS] $@")

            
            	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))

            
            	$(qexec)$(AS) $(ASFLAGS) -o $@ $<


            .PRECIOUS: %.c.S

            
            %.c.S: CFLAGS += -DINLINE_ASM

            
            $(BUILD_PFX)%.c.S: %.c

            
            	$(if $(quiet),@echo "    [GEN] $@")

            
            	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))

            
            	$(qexec)$(CC) -S $(CFLAGS) -o $@ $<


            .PRECIOUS: %.asm.s

            
            $(BUILD_PFX)%.asm.s: %.asm

            
            	$(if $(quiet),@echo "    [ASM CONVERSION] $@")

            
            	$(qexec)mkdir -p $(dir $@)

            
            	$(qexec)$(ASM_CONVERSION) <$< >$@


            # If we're in debug mode, pretend we don't have GNU strip, to fall back to

            
            # the copy implementation

            
            HAVE_GNU_STRIP := $(if $(CONFIG_DEBUG),,$(HAVE_GNU_STRIP))

            
            ifeq ($(HAVE_GNU_STRIP),yes)

            
            # Older binutils strip global symbols not needed for relocation processing

            
            # when given --strip-unneeded. Using nm and awk to identify globals and

            
            # keep them caused command line length issues under mingw and segfaults in

            
            # test_libaom were observed under OS/2: simply use --strip-debug.

            
            %.a: %_g.a

            
            	$(if $(quiet),@echo "    [STRIP] $@ < $<")

            
            	$(qexec)$(STRIP) --strip-debug \

            
                      -o $@ $<

            
            else

            
            %.a: %_g.a

            
            	$(if $(quiet),@echo "    [CP] $@ < $<")

            
            	$(qexec)cp $< $@

            
            endif


            #

            
            # Utility functions

            
            #

            
            pairmap=$(if $(strip $(2)),\

            
                $(call $(1),$(word 1,$(2)),$(word 2,$(2)))\

            
                $(call pairmap,$(1),$(wordlist 3,$(words $(2)),$(2)))\

            
            )


            enabled=$(filter-out $($(1)-no),$($(1)-yes))

            
            cond_enabled=$(if $(filter yes,$($(1))), $(call enabled,$(2)))


            find_file1=$(word 1,$(wildcard $(subst //,/,$(addsuffix /$(1),$(2)))))

            
            find_file=$(foreach f,$(1),$(call find_file1,$(strip $(f)),$(strip $(2))) )

            
            obj_pats=.c=.c.o $(AS_SFX)=$(AS_SFX).o .cc=.cc.o .cpp=.cpp.o

            
            objs=$(addprefix $(BUILD_PFX),$(foreach p,$(obj_pats),$(filter %.o,$(1:$(p))) ))


            install_map_templates=$(eval $(call install_map_template,$(1),$(2)))


            not=$(subst yes,no,$(1))


            ifeq ($(CONFIG_MSVS),yes)

            
            lib_file_name=$(1).lib

            
            else

            
            lib_file_name=lib$(1).a

            
            endif

            
            #

            
            # Rule Templates

            
            #

            
            define linker_template

            
            $(1): $(filter-out -%,$(2))

            
            $(1):

            
            	$(if $(quiet),@echo    "    [LD] $$@")

            
            	$(qexec)$$(LD) $$(strip $$(INTERNAL_LDFLAGS) $$(LDFLAGS) -o $$@ $(2) $(3) $$(extralibs))

            
            endef

            
            define linkerxx_template

            
            $(1): $(filter-out -%,$(2))

            
            $(1):

            
            	$(if $(quiet),@echo    "    [LD] $$@")

            
            	$(qexec)$$(CXX) $$(strip $$(INTERNAL_LDFLAGS) $$(LDFLAGS) -o $$@ $(2) $(3) $$(extralibs))

            
            endef

            
            # make-3.80 has a bug with expanding large input strings to the eval function,

            
            # which was triggered in some cases by the following component of

            
            # linker_template:

            
            #   $(1): $$(call find_file, $(patsubst -l%,lib%.a,$(filter -l%,$(2))),\

            
            #                           $$(patsubst -L%,%,$$(filter -L%,$$(LDFLAGS) $(2))))

            
            # This may be useful to revisit in the future (it tries to locate libraries

            
            # in a search path and add them as prerequisites


            define install_map_template

            
            $(DIST_DIR)/$(1): $(2)

            
            	$(if $(quiet),@echo "    [INSTALL] $$@")

            
            	$(qexec)mkdir -p $$(dir $$@)

            
            	$(qexec)cp -p $$< $$@

            
            endef


            define archive_template

            
            # Not using a pattern rule here because we don't want to generate empty

            
            # archives when they are listed as a dependency in files not responsible

            
            # for creating them.

            
            $(1):

            
            	$(if $(quiet),@echo "    [AR] $$@")

            
            	$(qexec)$$(AR) $$(ARFLAGS) $$@ $$^

            
            endef


            define so_template

            
            # Not using a pattern rule here because we don't want to generate empty

            
            # archives when they are listed as a dependency in files not responsible

            
            # for creating them.

            
            #

            
            # This needs further abstraction for dealing with non-GNU linkers.

            
            $(1):

            
            	$(if $(quiet),@echo "    [LD] $$@")

            
            	$(qexec)$$(LD) -shared $$(LDFLAGS) \

            
                        -Wl,--no-undefined -Wl,-soname,$$(SONAME) \

            
                        -Wl,--version-script,$$(EXPORTS_FILE) -o $$@ \

            
                        $$(filter %.o,$$^) $$(extralibs)

            
            endef


            define dl_template

            
            # Not using a pattern rule here because we don't want to generate empty

            
            # archives when they are listed as a dependency in files not responsible

            
            # for creating them.

            
            $(1):

            
            	$(if $(quiet),@echo "    [LD] $$@")

            
            	$(qexec)$$(LD) -dynamiclib $$(LDFLAGS) \

            
            	    -exported_symbols_list $$(EXPORTS_FILE) \

            
                    -Wl,-headerpad_max_install_names,-compatibility_version,1.0,-current_version,$$(VERSION_MAJOR) \

            
                    -o $$@ \

            
                    $$(filter %.o,$$^) $$(extralibs)

            
            endef


            define dll_template

            
            # Not using a pattern rule here because we don't want to generate empty

            
            # archives when they are listed as a dependency in files not responsible

            
            # for creating them.

            
            $(1):

            
            	$(if $(quiet),@echo "    [LD] $$@")

            
            	$(qexec)$$(LD) -Zdll $$(LDFLAGS) \

            
                    -o $$@ \

            
                    $$(filter %.o,$$^) $$(extralibs) $$(EXPORTS_FILE)

            
            endef


            #

            
            # Get current configuration

            
            #

            
            ifneq ($(target),)

            
            include $(SRC_PATH_BARE)/$(target:-$(TOOLCHAIN)=).mk

            
            endif


            skip_deps := $(filter %clean,$(MAKECMDGOALS))

            
            skip_deps += $(findstring testdata,$(MAKECMDGOALS))

            
            ifeq ($(strip $(skip_deps)),)

            
              ifeq ($(CONFIG_DEPENDENCY_TRACKING),yes)

            
                # Older versions of make don't like -include directives with no arguments

            
                ifneq ($(filter %.d,$(OBJS-yes:.o=.d)),)

            
                  -include $(filter %.d,$(OBJS-yes:.o=.d))

            
                endif

            
              endif

            
            endif


            #

            
            # Configuration dependent rules

            
            #

            
            $(call pairmap,install_map_templates,$(INSTALL_MAPS))


            DOCS=$(call cond_enabled,CONFIG_INSTALL_DOCS,DOCS)

            
            .docs: $(DOCS)

            
            	@touch $@


            INSTALL-DOCS=$(call cond_enabled,CONFIG_INSTALL_DOCS,INSTALL-DOCS)

            
            ifeq ($(MAKECMDGOALS),dist)

            
            INSTALL-DOCS+=$(call cond_enabled,CONFIG_INSTALL_DOCS,DIST-DOCS)

            
            endif

            
            .install-docs: .docs $(addprefix $(DIST_DIR)/,$(INSTALL-DOCS))

            
            	@touch $@


            clean::

            
            	rm -f .docs .install-docs $(DOCS)


            BINS=$(call enabled,BINS)

            
            .bins: $(BINS)

            
            	@touch $@


            INSTALL-BINS=$(call cond_enabled,CONFIG_INSTALL_BINS,INSTALL-BINS)

            
            ifeq ($(MAKECMDGOALS),dist)

            
            INSTALL-BINS+=$(call cond_enabled,CONFIG_INSTALL_BINS,DIST-BINS)

            
            endif

            
            .install-bins: .bins $(addprefix $(DIST_DIR)/,$(INSTALL-BINS))

            
            	@touch $@


            clean::

            
            	rm -f .bins .install-bins $(BINS)


            LIBS=$(call enabled,LIBS)

            
            .libs: $(LIBS)

            
            	@touch $@

            
            $(foreach lib,$(filter %_g.a,$(LIBS)),$(eval $(call archive_template,$(lib))))

            
            $(foreach lib,$(filter %so.$(SO_VERSION_MAJOR).$(SO_VERSION_MINOR).$(SO_VERSION_PATCH),$(LIBS)),$(eval $(call so_template,$(lib))))

            
            $(foreach lib,$(filter %$(SO_VERSION_MAJOR).dylib,$(LIBS)),$(eval $(call dl_template,$(lib))))

            
            $(foreach lib,$(filter %$(SO_VERSION_MAJOR).dll,$(LIBS)),$(eval $(call dll_template,$(lib))))


            INSTALL-LIBS=$(call cond_enabled,CONFIG_INSTALL_LIBS,INSTALL-LIBS)

            
            ifeq ($(MAKECMDGOALS),dist)

            
            INSTALL-LIBS+=$(call cond_enabled,CONFIG_INSTALL_LIBS,DIST-LIBS)

            
            endif

            
            .install-libs: .libs $(addprefix $(DIST_DIR)/,$(INSTALL-LIBS))

            
            	@touch $@


            clean::

            
            	rm -f .libs .install-libs $(LIBS)


            ifeq ($(CONFIG_EXTERNAL_BUILD),yes)

            
            PROJECTS=$(call enabled,PROJECTS)

            
            .projects: $(PROJECTS)

            
            	@touch $@


            INSTALL-PROJECTS=$(call cond_enabled,CONFIG_INSTALL_PROJECTS,INSTALL-PROJECTS)

            
            ifeq ($(MAKECMDGOALS),dist)

            
            INSTALL-PROJECTS+=$(call cond_enabled,CONFIG_INSTALL_PROJECTS,DIST-PROJECTS)

            
            endif

            
            .install-projects: .projects $(addprefix $(DIST_DIR)/,$(INSTALL-PROJECTS))

            
            	@touch $@


            clean::

            
            	rm -f .projects .install-projects $(PROJECTS)

            
            endif


            # If there are any source files to be distributed, then include the build

            
            # system too.

            
            ifneq ($(call enabled,DIST-SRCS),)

            
                DIST-SRCS-yes            += configure

            
                DIST-SRCS-yes            += build/make/configure.sh

            
                DIST-SRCS-yes            += build/make/gen_asm_deps.sh

            
                DIST-SRCS-yes            += build/make/Makefile

            
                DIST-SRCS-$(CONFIG_MSVS)  += build/make/gen_msvs_def.sh

            
                DIST-SRCS-$(CONFIG_MSVS)  += build/make/gen_msvs_sln.sh

            
                DIST-SRCS-$(CONFIG_MSVS)  += build/make/gen_msvs_vcxproj.sh

            
                DIST-SRCS-$(CONFIG_MSVS)  += build/make/msvs_common.sh

            
                DIST-SRCS-$(CONFIG_RVCT) += build/make/armlink_adapter.sh

            
                DIST-SRCS-$(ARCH_ARM)    += build/make/ads2gas.pl

            
                DIST-SRCS-$(ARCH_ARM)    += build/make/ads2gas_apple.pl

            
                DIST-SRCS-$(ARCH_ARM)    += build/make/ads2armasm_ms.pl

            
                DIST-SRCS-$(ARCH_ARM)    += build/make/thumb.pm

            
                DIST-SRCS-yes            += $(target:-$(TOOLCHAIN)=).mk

            
            endif

            
            INSTALL-SRCS := $(call cond_enabled,CONFIG_INSTALL_SRCS,INSTALL-SRCS)

            
            ifeq ($(MAKECMDGOALS),dist)

            
            INSTALL-SRCS += $(call cond_enabled,CONFIG_INSTALL_SRCS,DIST-SRCS)

            
            endif

            
            .install-srcs: $(addprefix $(DIST_DIR)/src/,$(INSTALL-SRCS))

            
            	@touch $@


            clean::

            
            	rm -f .install-srcs


            ifeq ($(CONFIG_EXTERNAL_BUILD),yes)

            
                BUILD_TARGETS += .projects

            
                INSTALL_TARGETS += .install-projects

            
            endif

            
            BUILD_TARGETS += .docs .libs .bins

            
            INSTALL_TARGETS += .install-docs .install-srcs .install-libs .install-bins

            
            all: $(BUILD_TARGETS)

            
            install:: $(INSTALL_TARGETS)

            
            dist: $(INSTALL_TARGETS)

            
            test::


            .SUFFIXES:  # Delete default suffix rules
	## 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.
	##


	include config.mk
	quiet?=true
	ifeq ($(target),)
	# If a target wasn't specified, invoke for all enabled targets.
	.DEFAULT:
	@for t in $(ALL_TARGETS); do \
	$(MAKE) --no-print-directory target=$$t $(MAKECMDGOALS) \|\| exit $$?;\
	done
	all: .DEFAULT
	clean:: .DEFAULT
	exampletest: .DEFAULT
	install:: .DEFAULT
	test:: .DEFAULT
	test-no-data-check:: .DEFAULT
	testdata:: .DEFAULT
	utiltest: .DEFAULT
	exampletest-no-data-check utiltest-no-data-check: .DEFAULT
	test_%: .DEFAULT ;

	# Note: md5sum is not installed on OS X, but openssl is. Openssl may not be
	# installed on cygwin, so we need to autodetect here.
	md5sum := $(firstword $(wildcard \
	$(foreach e,md5sum openssl,\
	$(foreach p,$(subst :, ,$(PATH)),$(p)/$(e)*))\
	))
	md5sum := $(if $(filter %openssl,$(md5sum)),$(md5sum) dgst -md5,$(md5sum))

	TGT_CC:=$(word 3, $(subst -, ,$(TOOLCHAIN)))
	dist:
	@for t in $(ALL_TARGETS); do \
	$(MAKE) --no-print-directory target=$$t $(MAKECMDGOALS) \|\| exit $$?;\
	done
	# Run configure for the user with the current toolchain.
	@if [ -d "$(DIST_DIR)/src" ]; then \
	mkdir -p "$(DIST_DIR)/build"; \
	cd "$(DIST_DIR)/build"; \
	echo "Rerunning configure $(CONFIGURE_ARGS)"; \
	../src/configure $(CONFIGURE_ARGS); \
	$(if $(filter vs%,$(TGT_CC)),make NO_LAUNCH_DEVENV=1;) \
	fi
	@if [ -d "$(DIST_DIR)" ]; then \
	echo " [MD5SUM] $(DIST_DIR)"; \
	cd $(DIST_DIR) && \
	$(md5sum) `find . -name md5sums.txt -prune -o -type f -print` \
	\| sed -e 's/MD5(\(.*\))= \([0-9a-f]\{32\}\)/\2 \1/' \
	> md5sums.txt;\
	fi
	endif

	# Since we invoke make recursively for multiple targets we need to include the
	# .mk file for the correct target, but only when $(target) is non-empty.
	ifneq ($(target),)
	include $(target)-$(TOOLCHAIN).mk
	endif
	BUILD_ROOT?=.
	VPATH=$(SRC_PATH_BARE)
	CFLAGS+=-I$(BUILD_PFX)$(BUILD_ROOT) -I$(SRC_PATH)
	CXXFLAGS+=-I$(BUILD_PFX)$(BUILD_ROOT) -I$(SRC_PATH)
	ASFLAGS+=-I$(BUILD_PFX)$(BUILD_ROOT)/ -I$(SRC_PATH)/
	DIST_DIR?=dist
	HOSTCC?=gcc
	TGT_ISA:=$(word 1, $(subst -, ,$(TOOLCHAIN)))
	TGT_OS:=$(word 2, $(subst -, ,$(TOOLCHAIN)))
	TGT_CC:=$(word 3, $(subst -, ,$(TOOLCHAIN)))
	quiet:=$(if $(or $(verbose), $(V)),, yes)
	qexec=$(if $(quiet),@)

	# Cancel built-in implicit rules
	%: %.o
	%.asm:
	%.a:
	%: %.cc

	#
	# Common rules"
	#
	.PHONY: all
	all:

	.PHONY: clean
	clean::
	rm -f $(OBJS-yes) $(OBJS-yes:.o=.d) $(OBJS-yes:.asm.s.o=.asm.s)
	rm -f $(CLEAN-OBJS)

	.PHONY: clean
	distclean: clean
	if [ -z "$(target)" ]; then \
	rm -f Makefile; \
	rm -f config.log config.mk; \
	rm -f aom_config.[hc] aom_config.asm; \
	else \
	rm -f $(target)-$(TOOLCHAIN).mk; \
	fi

	.PHONY: dist
	dist:
	.PHONY: exampletest
	exampletest:
	.PHONY: install
	install::
	.PHONY: test
	test::
	.PHONY: testdata
	testdata::
	.PHONY: utiltest
	utiltest:
	.PHONY: test-no-data-check exampletest-no-data-check utiltest-no-data-check
	test-no-data-check::
	exampletest-no-data-check utiltest-no-data-check:

	# Force to realign stack always on OS/2
	ifeq ($(TOOLCHAIN), x86-os2-gcc)
	CFLAGS += -mstackrealign
	endif

	$(BUILD_PFX)%_mmx.c.d: CFLAGS += -mmmx
	$(BUILD_PFX)%_mmx.c.o: CFLAGS += -mmmx
	$(BUILD_PFX)%_sse2.c.d: CFLAGS += -msse2
	$(BUILD_PFX)%_sse2.c.o: CFLAGS += -msse2
	$(BUILD_PFX)%_sse3.c.d: CFLAGS += -msse3
	$(BUILD_PFX)%_sse3.c.o: CFLAGS += -msse3
	$(BUILD_PFX)%_ssse3.c.d: CFLAGS += -mssse3
	$(BUILD_PFX)%_ssse3.c.o: CFLAGS += -mssse3
	$(BUILD_PFX)%_sse4.c.d: CFLAGS += -msse4.1
	$(BUILD_PFX)%_sse4.c.o: CFLAGS += -msse4.1
	$(BUILD_PFX)%_avx.c.d: CFLAGS += -mavx
	$(BUILD_PFX)%_avx.c.o: CFLAGS += -mavx
	$(BUILD_PFX)%_avx2.c.d: CFLAGS += -mavx2
	$(BUILD_PFX)%_avx2.c.o: CFLAGS += -mavx2

	$(BUILD_PFX)%.c.d: %.c
	$(if $(quiet),@echo " [DEP] $@")
	$(qexec)mkdir -p $(dir $@)
	$(qexec)$(CC) $(INTERNAL_CFLAGS) $(CFLAGS) -M $< \| $(fmt_deps) > $@

	$(BUILD_PFX)%.c.o: %.c
	$(if $(quiet),@echo " [CC] $@")
	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))
	$(qexec)$(CC) $(INTERNAL_CFLAGS) $(CFLAGS) -c -o $@ $<

	$(BUILD_PFX)%.cc.d: %.cc
	$(if $(quiet),@echo " [DEP] $@")
	$(qexec)mkdir -p $(dir $@)
	$(qexec)$(CXX) $(INTERNAL_CFLAGS) $(CXXFLAGS) -M $< \| $(fmt_deps) > $@

	$(BUILD_PFX)%.cc.o: %.cc
	$(if $(quiet),@echo " [CXX] $@")
	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))
	$(qexec)$(CXX) $(INTERNAL_CFLAGS) $(CXXFLAGS) -c -o $@ $<

	$(BUILD_PFX)%.cpp.d: %.cpp
	$(if $(quiet),@echo " [DEP] $@")
	$(qexec)mkdir -p $(dir $@)
	$(qexec)$(CXX) $(INTERNAL_CFLAGS) $(CXXFLAGS) -M $< \| $(fmt_deps) > $@

	$(BUILD_PFX)%.cpp.o: %.cpp
	$(if $(quiet),@echo " [CXX] $@")
	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))
	$(qexec)$(CXX) $(INTERNAL_CFLAGS) $(CXXFLAGS) -c -o $@ $<

	$(BUILD_PFX)%.asm.d: %.asm
	$(if $(quiet),@echo " [DEP] $@")
	$(qexec)mkdir -p $(dir $@)
	$(qexec)$(SRC_PATH_BARE)/build/make/gen_asm_deps.sh \
	--build-pfx=$(BUILD_PFX) --depfile=$@ $(ASFLAGS) $< > $@

	$(BUILD_PFX)%.asm.o: %.asm
	$(if $(quiet),@echo " [AS] $@")
	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))
	$(qexec)$(AS) $(ASFLAGS) -o $@ $<

	$(BUILD_PFX)%.s.d: %.s
	$(if $(quiet),@echo " [DEP] $@")
	$(qexec)mkdir -p $(dir $@)
	$(qexec)$(SRC_PATH_BARE)/build/make/gen_asm_deps.sh \
	--build-pfx=$(BUILD_PFX) --depfile=$@ $(ASFLAGS) $< > $@

	$(BUILD_PFX)%.s.o: %.s
	$(if $(quiet),@echo " [AS] $@")
	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))
	$(qexec)$(AS) $(ASFLAGS) -o $@ $<

	.PRECIOUS: %.c.S
	%.c.S: CFLAGS += -DINLINE_ASM
	$(BUILD_PFX)%.c.S: %.c
	$(if $(quiet),@echo " [GEN] $@")
	$(qexec)$(if $(CONFIG_DEPENDENCY_TRACKING),,mkdir -p $(dir $@))
	$(qexec)$(CC) -S $(CFLAGS) -o $@ $<

	.PRECIOUS: %.asm.s
	$(BUILD_PFX)%.asm.s: %.asm
	$(if $(quiet),@echo " [ASM CONVERSION] $@")
	$(qexec)mkdir -p $(dir $@)
	$(qexec)$(ASM_CONVERSION) <$< >$@

	# If we're in debug mode, pretend we don't have GNU strip, to fall back to
	# the copy implementation
	HAVE_GNU_STRIP := $(if $(CONFIG_DEBUG),,$(HAVE_GNU_STRIP))
	ifeq ($(HAVE_GNU_STRIP),yes)
	# Older binutils strip global symbols not needed for relocation processing
	# when given --strip-unneeded. Using nm and awk to identify globals and
	# keep them caused command line length issues under mingw and segfaults in
	# test_libaom were observed under OS/2: simply use --strip-debug.
	%.a: %_g.a
	$(if $(quiet),@echo " [STRIP] $@ < $<")
	$(qexec)$(STRIP) --strip-debug \
	-o $@ $<
	else
	%.a: %_g.a
	$(if $(quiet),@echo " [CP] $@ < $<")
	$(qexec)cp $< $@
	endif

	#
	# Utility functions
	#
	pairmap=$(if $(strip $(2)),\
	$(call $(1),$(word 1,$(2)),$(word 2,$(2)))\
	$(call pairmap,$(1),$(wordlist 3,$(words $(2)),$(2)))\
	)

	enabled=$(filter-out $($(1)-no),$($(1)-yes))
	cond_enabled=$(if $(filter yes,$($(1))), $(call enabled,$(2)))

	find_file1=$(word 1,$(wildcard $(subst //,/,$(addsuffix /$(1),$(2)))))
	find_file=$(foreach f,$(1),$(call find_file1,$(strip $(f)),$(strip $(2))) )
	obj_pats=.c=.c.o $(AS_SFX)=$(AS_SFX).o .cc=.cc.o .cpp=.cpp.o
	objs=$(addprefix $(BUILD_PFX),$(foreach p,$(obj_pats),$(filter %.o,$(1:$(p))) ))

	install_map_templates=$(eval $(call install_map_template,$(1),$(2)))

	not=$(subst yes,no,$(1))

	ifeq ($(CONFIG_MSVS),yes)
	lib_file_name=$(1).lib
	else
	lib_file_name=lib$(1).a
	endif
	#
	# Rule Templates
	#
	define linker_template
	$(1): $(filter-out -%,$(2))
	$(1):
	$(if $(quiet),@echo " [LD] $$@")
	$(qexec)$$(LD) $$(strip $$(INTERNAL_LDFLAGS) $$(LDFLAGS) -o $$@ $(2) $(3) $$(extralibs))
	endef
	define linkerxx_template
	$(1): $(filter-out -%,$(2))
	$(1):
	$(if $(quiet),@echo " [LD] $$@")
	$(qexec)$$(CXX) $$(strip $$(INTERNAL_LDFLAGS) $$(LDFLAGS) -o $$@ $(2) $(3) $$(extralibs))
	endef
	# make-3.80 has a bug with expanding large input strings to the eval function,
	# which was triggered in some cases by the following component of
	# linker_template:
	# $(1): $$(call find_file, $(patsubst -l%,lib%.a,$(filter -l%,$(2))),\
	# $$(patsubst -L%,%,$$(filter -L%,$$(LDFLAGS) $(2))))
	# This may be useful to revisit in the future (it tries to locate libraries
	# in a search path and add them as prerequisites

	define install_map_template
	$(DIST_DIR)/$(1): $(2)
	$(if $(quiet),@echo " [INSTALL] $$@")
	$(qexec)mkdir -p $$(dir $$@)
	$(qexec)cp -p $$< $$@
	endef

	define archive_template
	# Not using a pattern rule here because we don't want to generate empty
	# archives when they are listed as a dependency in files not responsible
	# for creating them.
	$(1):
	$(if $(quiet),@echo " [AR] $$@")
	$(qexec)$$(AR) $$(ARFLAGS) $$@ $$^
	endef

	define so_template
	# Not using a pattern rule here because we don't want to generate empty
	# archives when they are listed as a dependency in files not responsible
	# for creating them.
	#
	# This needs further abstraction for dealing with non-GNU linkers.
	$(1):
	$(if $(quiet),@echo " [LD] $$@")
	$(qexec)$$(LD) -shared $$(LDFLAGS) \
	-Wl,--no-undefined -Wl,-soname,$$(SONAME) \
	-Wl,--version-script,$$(EXPORTS_FILE) -o $$@ \
	$$(filter %.o,$$^) $$(extralibs)
	endef

	define dl_template
	# Not using a pattern rule here because we don't want to generate empty
	# archives when they are listed as a dependency in files not responsible
	# for creating them.
	$(1):
	$(if $(quiet),@echo " [LD] $$@")
	$(qexec)$$(LD) -dynamiclib $$(LDFLAGS) \
	-exported_symbols_list $$(EXPORTS_FILE) \
	-Wl,-headerpad_max_install_names,-compatibility_version,1.0,-current_version,$$(VERSION_MAJOR) \
	-o $$@ \
	$$(filter %.o,$$^) $$(extralibs)
	endef

	define dll_template
	# Not using a pattern rule here because we don't want to generate empty
	# archives when they are listed as a dependency in files not responsible
	# for creating them.
	$(1):
	$(if $(quiet),@echo " [LD] $$@")
	$(qexec)$$(LD) -Zdll $$(LDFLAGS) \
	-o $$@ \
	$$(filter %.o,$$^) $$(extralibs) $$(EXPORTS_FILE)
	endef


	#
	# Get current configuration
	#
	ifneq ($(target),)
	include $(SRC_PATH_BARE)/$(target:-$(TOOLCHAIN)=).mk
	endif

	skip_deps := $(filter %clean,$(MAKECMDGOALS))
	skip_deps += $(findstring testdata,$(MAKECMDGOALS))
	ifeq ($(strip $(skip_deps)),)
	ifeq ($(CONFIG_DEPENDENCY_TRACKING),yes)
	# Older versions of make don't like -include directives with no arguments
	ifneq ($(filter %.d,$(OBJS-yes:.o=.d)),)
	-include $(filter %.d,$(OBJS-yes:.o=.d))
	endif
	endif
	endif

	#
	# Configuration dependent rules
	#
	$(call pairmap,install_map_templates,$(INSTALL_MAPS))

	DOCS=$(call cond_enabled,CONFIG_INSTALL_DOCS,DOCS)
	.docs: $(DOCS)
	@touch $@

	INSTALL-DOCS=$(call cond_enabled,CONFIG_INSTALL_DOCS,INSTALL-DOCS)
	ifeq ($(MAKECMDGOALS),dist)
	INSTALL-DOCS+=$(call cond_enabled,CONFIG_INSTALL_DOCS,DIST-DOCS)
	endif
	.install-docs: .docs $(addprefix $(DIST_DIR)/,$(INSTALL-DOCS))
	@touch $@

	clean::
	rm -f .docs .install-docs $(DOCS)

	BINS=$(call enabled,BINS)
	.bins: $(BINS)
	@touch $@

	INSTALL-BINS=$(call cond_enabled,CONFIG_INSTALL_BINS,INSTALL-BINS)
	ifeq ($(MAKECMDGOALS),dist)
	INSTALL-BINS+=$(call cond_enabled,CONFIG_INSTALL_BINS,DIST-BINS)
	endif
	.install-bins: .bins $(addprefix $(DIST_DIR)/,$(INSTALL-BINS))
	@touch $@

	clean::
	rm -f .bins .install-bins $(BINS)

	LIBS=$(call enabled,LIBS)
	.libs: $(LIBS)
	@touch $@
	$(foreach lib,$(filter %_g.a,$(LIBS)),$(eval $(call archive_template,$(lib))))
	$(foreach lib,$(filter %so.$(SO_VERSION_MAJOR).$(SO_VERSION_MINOR).$(SO_VERSION_PATCH),$(LIBS)),$(eval $(call so_template,$(lib))))
	$(foreach lib,$(filter %$(SO_VERSION_MAJOR).dylib,$(LIBS)),$(eval $(call dl_template,$(lib))))
	$(foreach lib,$(filter %$(SO_VERSION_MAJOR).dll,$(LIBS)),$(eval $(call dll_template,$(lib))))

	INSTALL-LIBS=$(call cond_enabled,CONFIG_INSTALL_LIBS,INSTALL-LIBS)
	ifeq ($(MAKECMDGOALS),dist)
	INSTALL-LIBS+=$(call cond_enabled,CONFIG_INSTALL_LIBS,DIST-LIBS)
	endif
	.install-libs: .libs $(addprefix $(DIST_DIR)/,$(INSTALL-LIBS))
	@touch $@

	clean::
	rm -f .libs .install-libs $(LIBS)

	ifeq ($(CONFIG_EXTERNAL_BUILD),yes)
	PROJECTS=$(call enabled,PROJECTS)
	.projects: $(PROJECTS)
	@touch $@

	INSTALL-PROJECTS=$(call cond_enabled,CONFIG_INSTALL_PROJECTS,INSTALL-PROJECTS)
	ifeq ($(MAKECMDGOALS),dist)
	INSTALL-PROJECTS+=$(call cond_enabled,CONFIG_INSTALL_PROJECTS,DIST-PROJECTS)
	endif
	.install-projects: .projects $(addprefix $(DIST_DIR)/,$(INSTALL-PROJECTS))
	@touch $@

	clean::
	rm -f .projects .install-projects $(PROJECTS)
	endif

	# If there are any source files to be distributed, then include the build
	# system too.
	ifneq ($(call enabled,DIST-SRCS),)
	DIST-SRCS-yes += configure
	DIST-SRCS-yes += build/make/configure.sh
	DIST-SRCS-yes += build/make/gen_asm_deps.sh
	DIST-SRCS-yes += build/make/Makefile
	DIST-SRCS-$(CONFIG_MSVS) += build/make/gen_msvs_def.sh
	DIST-SRCS-$(CONFIG_MSVS) += build/make/gen_msvs_sln.sh
	DIST-SRCS-$(CONFIG_MSVS) += build/make/gen_msvs_vcxproj.sh
	DIST-SRCS-$(CONFIG_MSVS) += build/make/msvs_common.sh
	DIST-SRCS-$(CONFIG_RVCT) += build/make/armlink_adapter.sh
	DIST-SRCS-$(ARCH_ARM) += build/make/ads2gas.pl
	DIST-SRCS-$(ARCH_ARM) += build/make/ads2gas_apple.pl
	DIST-SRCS-$(ARCH_ARM) += build/make/ads2armasm_ms.pl
	DIST-SRCS-$(ARCH_ARM) += build/make/thumb.pm
	DIST-SRCS-yes += $(target:-$(TOOLCHAIN)=).mk
	endif
	INSTALL-SRCS := $(call cond_enabled,CONFIG_INSTALL_SRCS,INSTALL-SRCS)
	ifeq ($(MAKECMDGOALS),dist)
	INSTALL-SRCS += $(call cond_enabled,CONFIG_INSTALL_SRCS,DIST-SRCS)
	endif
	.install-srcs: $(addprefix $(DIST_DIR)/src/,$(INSTALL-SRCS))
	@touch $@

	clean::
	rm -f .install-srcs

	ifeq ($(CONFIG_EXTERNAL_BUILD),yes)
	BUILD_TARGETS += .projects
	INSTALL_TARGETS += .install-projects
	endif
	BUILD_TARGETS += .docs .libs .bins
	INSTALL_TARGETS += .install-docs .install-srcs .install-libs .install-bins
	all: $(BUILD_TARGETS)
	install:: $(INSTALL_TARGETS)
	dist: $(INSTALL_TARGETS)
	test::

	.SUFFIXES: # Delete default suffix rules