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