define int_vars

#Set defaults for vars which may be overridden per-package

$(1)_cc=$($($(1)_type)_CC)

$(1)_cxx=$($($(1)_type)_CXX)

$(1)_objc=$($($(1)_type)_OBJC)

$(1)_objcxx=$($($(1)_type)_OBJCXX)

$(1)_ar=$($($(1)_type)_AR)

$(1)_ranlib=$($($(1)_type)_RANLIB)

$(1)_libtool=$($($(1)_type)_LIBTOOL)

$(1)_nm=$($($(1)_type)_NM)

$(1)_cflags=$($($(1)_type)_CFLAGS) $($($(1)_type)_$(release_type)_CFLAGS)

$(1)_cxxflags=$($($(1)_type)_CXXFLAGS) $($($(1)_type)_$(release_type)_CXXFLAGS)

$(1)_ldflags=$($($(1)_type)_LDFLAGS) $($($(1)_type)_$(release_type)_LDFLAGS) -L$($($(1)_type)_prefix)/lib

$(1)_cppflags=$($($(1)_type)_CPPFLAGS) $($($(1)_type)_$(release_type)_CPPFLAGS) -I$($($(1)_type)_prefix)/include

$(1)_recipe_hash:=

endef

define int_get_all_dependencies

$(sort $(foreach dep,$(2),$(2) $(call int_get_all_dependencies,$(1),$($(dep)_dependencies))))

endef

define fetch_file_inner

( mkdir -p $$($(1)_download_dir) && echo Fetching $(3) from $(2) && \

$(build_DOWNLOAD) "$$($(1)_download_dir)/$(4).temp" "$(2)/$(3)" && \

echo "$(5) $$($(1)_download_dir)/$(4).temp" > $$($(1)_download_dir)/.$(4).hash && \

$(build_SHA256SUM) -c $$($(1)_download_dir)/.$(4).hash && \

mv $$($(1)_download_dir)/$(4).temp $$($(1)_source_dir)/$(4) && \

rm -rf $$($(1)_download_dir) )

endef

define fetch_file

( test -f $$($(1)_source_dir)/$(4) || \

( $(call fetch_file_inner,$(1),$(2),$(3),$(4),$(5)) || \

$(call fetch_file_inner,$(1),$(FALLBACK_DOWNLOAD_PATH),$(3),$(4),$(5))))

endef

define int_get_build_recipe_hash

$(eval $(1)_all_file_checksums:=$(shell $(build_SHA256SUM) $(meta_depends) packages/$(1).mk $(addprefix $(PATCHES_PATH)/$(1)/,$($(1)_patches)) | cut -d" " -f1))

$(eval $(1)_recipe_hash:=$(shell echo -n "$($(1)_all_file_checksums)" | $(build_SHA256SUM) | cut -d" " -f1))

endef

define int_get_build_id

$(eval $(1)_dependencies += $($(1)_$(host_arch)_$(host_os)_dependencies) $($(1)_$(host_os)_dependencies))

$(eval $(1)_all_dependencies:=$(call int_get_all_dependencies,$(1),$($($(1)_type)_native_toolchain) $($(1)_dependencies)))

$(foreach dep,$($(1)_all_dependencies),$(eval $(1)_build_id_deps+=$(dep)-$($(dep)_version)-$($(dep)_recipe_hash)))

$(eval $(1)_build_id_long:=$(1)-$($(1)_version)-$($(1)_recipe_hash)-$(release_type) $($(1)_build_id_deps) $($($(1)_type)_id_string))

$(eval $(1)_build_id:=$(shell echo -n "$($(1)_build_id_long)" | $(build_SHA256SUM) | cut -c-$(HASH_LENGTH)))

final_build_id_long+=$($(package)_build_id_long)

#compute package-specific paths

$(1)_build_subdir?=.

$(1)_download_file?=$($(1)_file_name)

$(1)_source_dir:=$(SOURCES_PATH)

$(1)_source:=$$($(1)_source_dir)/$($(1)_file_name)

$(1)_staging_dir=$(base_staging_dir)/$(host)/$(1)/$($(1)_version)-$($(1)_build_id)

$(1)_staging_prefix_dir:=$$($(1)_staging_dir)$($($(1)_type)_prefix)

$(1)_extract_dir:=$(base_build_dir)/$(host)/$(1)/$($(1)_version)-$($(1)_build_id)

$(1)_download_dir:=$(base_download_dir)/$(1)-$($(1)_version)

$(1)_build_dir:=$$($(1)_extract_dir)/$$($(1)_build_subdir)

$(1)_cached_checksum:=$(BASE_CACHE)/$(host)/$(1)/$(1)-$($(1)_version)-$($(1)_build_id).tar.gz.hash

$(1)_patch_dir:=$(base_build_dir)/$(host)/$(1)/$($(1)_version)-$($(1)_build_id)/.patches-$($(1)_build_id)

$(1)_prefixbin:=$($($(1)_type)_prefix)/bin/

$(1)_cached:=$(BASE_CACHE)/$(host)/$(1)/$(1)-$($(1)_version)-$($(1)_build_id).tar.gz

$(1)_all_sources=$($(1)_file_name) $($(1)_extra_sources)

#stamps

$(1)_fetched=$(SOURCES_PATH)/download-stamps/.stamp_fetched-$(1)-$($(1)_file_name).hash

$(1)_extracted=$$($(1)_extract_dir)/.stamp_extracted

$(1)_preprocessed=$$($(1)_extract_dir)/.stamp_preprocessed

$(1)_cleaned=$$($(1)_extract_dir)/.stamp_cleaned

$(1)_built=$$($(1)_build_dir)/.stamp_built

$(1)_configured=$$($(1)_build_dir)/.stamp_configured

$(1)_staged=$$($(1)_staging_dir)/.stamp_staged

$(1)_postprocessed=$$($(1)_staging_prefix_dir)/.stamp_postprocessed

$(1)_download_path_fixed=$(subst :,\:,$$($(1)_download_path))

#default commands

# The default behavior for tar will try to set ownership when running as uid 0 and may not succeed, --no-same-owner disables this behavior

$(1)_fetch_cmds ?= $(call fetch_file,$(1),$(subst \:,:,$$($(1)_download_path_fixed)),$$($(1)_download_file),$($(1)_file_name),$($(1)_sha256_hash))

$(1)_extract_cmds ?= mkdir -p $$($(1)_extract_dir) && echo "$$($(1)_sha256_hash) $$($(1)_source)" > $$($(1)_extract_dir)/.$$($(1)_file_name).hash && $(build_SHA256SUM) -c $$($(1)_extract_dir)/.$$($(1)_file_name).hash && tar --strip-components=1 -xf $$($(1)_source)

$(1)_preprocess_cmds ?=

$(1)_build_cmds ?=

$(1)_config_cmds ?=

$(1)_stage_cmds ?=

$(1)_set_vars ?=

all_sources+=$$($(1)_fetched)

endef

#$(foreach dep_target,$($(1)_all_dependencies),$(eval $(1)_dependency_targets=$($(dep_target)_cached)))

define int_config_attach_build_config

$(eval $(call $(1)_set_vars,$(1)))

$(1)_cflags+=$($(1)_cflags_$(release_type))

$(1)_cflags+=$($(1)_cflags_$(host_arch)) $($(1)_cflags_$(host_arch)_$(release_type))

$(1)_cflags+=$($(1)_cflags_$(host_os)) $($(1)_cflags_$(host_os)_$(release_type))

$(1)_cflags+=$($(1)_cflags_$(host_arch)_$(host_os)) $($(1)_cflags_$(host_arch)_$(host_os)_$(release_type))

$(1)_cxxflags+=$($(1)_cxxflags_$(release_type))

$(1)_cxxflags+=$($(1)_cxxflags_$(host_arch)) $($(1)_cxxflags_$(host_arch)_$(release_type))

$(1)_cxxflags+=$($(1)_cxxflags_$(host_os)) $($(1)_cxxflags_$(host_os)_$(release_type))

$(1)_cxxflags+=$($(1)_cxxflags_$(host_arch)_$(host_os)) $($(1)_cxxflags_$(host_arch)_$(host_os)_$(release_type))

$(1)_cppflags+=$($(1)_cppflags_$(release_type))

$(1)_cppflags+=$($(1)_cppflags_$(host_arch)) $($(1)_cppflags_$(host_arch)_$(release_type))

$(1)_cppflags+=$($(1)_cppflags_$(host_os)) $($(1)_cppflags_$(host_os)_$(release_type))

$(1)_cppflags+=$($(1)_cppflags_$(host_arch)_$(host_os)) $($(1)_cppflags_$(host_arch)_$(host_os)_$(release_type))

$(1)_ldflags+=$($(1)_ldflags_$(release_type))

$(1)_ldflags+=$($(1)_ldflags_$(host_arch)) $($(1)_ldflags_$(host_arch)_$(release_type))

$(1)_ldflags+=$($(1)_ldflags_$(host_os)) $($(1)_ldflags_$(host_os)_$(release_type))

$(1)_ldflags+=$($(1)_ldflags_$(host_arch)_$(host_os)) $($(1)_ldflags_$(host_arch)_$(host_os)_$(release_type))

$(1)_build_opts+=$$($(1)_build_opts_$(release_type))

$(1)_build_opts+=$$($(1)_build_opts_$(host_arch)) $$($(1)_build_opts_$(host_arch)_$(release_type))

$(1)_build_opts+=$$($(1)_build_opts_$(host_os)) $$($(1)_build_opts_$(host_os)_$(release_type))

$(1)_build_opts+=$$($(1)_build_opts_$(host_arch)_$(host_os)) $$($(1)_build_opts_$(host_arch)_$(host_os)_$(release_type))

$(1)_config_opts+=$$($(1)_config_opts_$(release_type))

$(1)_config_opts+=$$($(1)_config_opts_$(host_arch)) $$($(1)_config_opts_$(host_arch)_$(release_type))

$(1)_config_opts+=$$($(1)_config_opts_$(host_os)) $$($(1)_config_opts_$(host_os)_$(release_type))

$(1)_config_opts+=$$($(1)_config_opts_$(host_arch)_$(host_os)) $$($(1)_config_opts_$(host_arch)_$(host_os)_$(release_type))

$(1)_config_env+=$$($(1)_config_env_$(release_type))

$(1)_config_env+=$($(1)_config_env_$(host_arch)) $($(1)_config_env_$(host_arch)_$(release_type))

$(1)_config_env+=$($(1)_config_env_$(host_os)) $($(1)_config_env_$(host_os)_$(release_type))

$(1)_config_env+=$($(1)_config_env_$(host_arch)_$(host_os)) $($(1)_config_env_$(host_arch)_$(host_os)_$(release_type))

$(1)_config_env+=PKG_CONFIG_LIBDIR=$($($(1)_type)_prefix)/lib/pkgconfig

$(1)_config_env+=PKG_CONFIG_PATH=$($($(1)_type)_prefix)/share/pkgconfig

$(1)_config_env+=PATH=$(build_prefix)/bin:$(PATH)

$(1)_build_env+=PATH=$(build_prefix)/bin:$(PATH)

$(1)_stage_env+=PATH=$(build_prefix)/bin:$(PATH)

$(1)_autoconf=./configure --host=$($($(1)_type)_host) --disable-dependency-tracking --prefix=$($($(1)_type)_prefix) $$($(1)_config_opts) CC="$$($(1)_cc)" CXX="$$($(1)_cxx)"

ifneq ($($(1)_nm),)

$(1)_autoconf += NM="$$($(1)_nm)"

endif

ifneq ($($(1)_ranlib),)

$(1)_autoconf += RANLIB="$$($(1)_ranlib)"

endif

ifneq ($($(1)_ar),)

$(1)_autoconf += AR="$$($(1)_ar)"

endif

ifneq ($($(1)_cflags),)

$(1)_autoconf += CFLAGS="$$($(1)_cflags)"

endif

ifneq ($($(1)_cxxflags),)

$(1)_autoconf += CXXFLAGS="$$($(1)_cxxflags)"

endif

ifneq ($($(1)_cppflags),)

$(1)_autoconf += CPPFLAGS="$$($(1)_cppflags)"

endif

ifneq ($($(1)_ldflags),)

$(1)_autoconf += LDFLAGS="$$($(1)_ldflags)"

endif

$(1)_cmake=env CC="$$($(1)_cc)" \

CFLAGS="$$($(1)_cppflags) $$($(1)_cflags)" \

CXX="$$($(1)_cxx)" \

CXXFLAGS="$$($(1)_cppflags) $$($(1)_cxxflags)" \

LDFLAGS="$$($(1)_ldflags)" \

cmake -DCMAKE_INSTALL_PREFIX:PATH="$$($($(1)_type)_prefix)"

ifeq ($($(1)_type),build)

$(1)_cmake += -DCMAKE_INSTALL_RPATH:PATH="$$($($(1)_type)_prefix)/lib"

else

ifneq ($(host),$(build))

$(1)_cmake += -DCMAKE_SYSTEM_NAME=$($(host_os)_cmake_system)

$(1)_cmake += -DCMAKE_C_COMPILER_TARGET=$(host)

$(1)_cmake += -DCMAKE_CXX_COMPILER_TARGET=$(host)

endif

endif

endef

define int_add_cmds

$($(1)_fetched):

$(AT)mkdir -p $$(@D) $(SOURCES_PATH)

$(AT)rm -f $$@

$(AT)touch $$@

$(AT)cd $$(@D); $(call $(1)_fetch_cmds,$(1))

$(AT)cd $($(1)_source_dir); $(foreach source,$($(1)_all_sources),$(build_SHA256SUM) $(source) >> $$(@);)

$(AT)touch $$@

$($(1)_extracted): | $($(1)_fetched)

$(AT)echo Extracting $(1)...

$(AT)mkdir -p $$(@D)

$(AT)cd $$(@D); $(call $(1)_extract_cmds,$(1))

$(AT)touch $$@

$($(1)_preprocessed): | $($(1)_dependencies) $($(1)_extracted)

$(AT)echo Preprocessing $(1)...

$(AT)mkdir -p $$(@D) $($(1)_patch_dir)

$(AT)$(foreach patch,$($(1)_patches),cd $(PATCHES_PATH)/$(1); cp $(patch) $($(1)_patch_dir) ;)

$(AT)cd $$(@D); $(call $(1)_preprocess_cmds, $(1))

$(AT)touch $$@

$($(1)_configured): | $($(1)_preprocessed)

$(AT)echo Configuring $(1)...

$(AT)rm -rf $(host_prefix); mkdir -p $(host_prefix)/lib; cd $(host_prefix); $(foreach package,$($(1)_all_dependencies), tar xf $($(package)_cached); )

$(AT)mkdir -p $$(@D)

$(AT)+cd $$(@D); $($(1)_config_env) $(call $(1)_config_cmds, $(1))

$(AT)touch $$@

$($(1)_built): | $($(1)_configured)

$(AT)echo Building $(1)...

$(AT)mkdir -p $$(@D)

$(AT)+cd $$(@D); $($(1)_build_env) $(call $(1)_build_cmds, $(1))

$(AT)touch $$@

$($(1)_staged): | $($(1)_built)

$(AT)echo Staging $(1)...

$(AT)mkdir -p $($(1)_staging_dir)/$(host_prefix)

$(AT)cd $($(1)_build_dir); $($(1)_stage_env) $(call $(1)_stage_cmds, $(1))

$(AT)rm -rf $($(1)_extract_dir)

$(AT)touch $$@

$($(1)_postprocessed): | $($(1)_staged)

$(AT)echo Postprocessing $(1)...

$(AT)cd $($(1)_staging_prefix_dir); $(call $(1)_postprocess_cmds)

$(AT)touch $$@

$($(1)_cached): | $($(1)_dependencies) $($(1)_postprocessed)

$(AT)echo Caching $(1)...

$(AT)cd $$($(1)_staging_dir)/$(host_prefix); find . | sort | tar --no-recursion -czf $$($(1)_staging_dir)/$$(@F) -T -

$(AT)mkdir -p $$(@D)

$(AT)rm -rf $$(@D) && mkdir -p $$(@D)

$(AT)mv $$($(1)_staging_dir)/$$(@F) $$(@)

$(AT)rm -rf $($(1)_staging_dir)

$($(1)_cached_checksum): $($(1)_cached)

$(AT)cd $$(@D); $(build_SHA256SUM) $$(<F) > $$(@)

.PHONY: $(1)

$(1): | $($(1)_cached_checksum)

.SECONDARY: $($(1)_cached) $($(1)_postprocessed) $($(1)_staged) $($(1)_built) $($(1)_configured) $($(1)_preprocessed) $($(1)_extracted) $($(1)_fetched)

endef

# These functions create the build targets for each package. They must be

# broken down into small steps so that each part is done for all packages

# before moving on to the next step. Otherwise, a package's info

# (build-id for example) would only be available to another package if it

# happened to be computed already.

#set the type for host/build packages.

$(foreach native_package,$(native_packages),$(eval $(native_package)_type=build))

$(foreach package,$(packages),$(eval $(package)_type=$(host_arch)_$(host_os)))

#set overridable defaults

$(foreach package,$(all_packages),$(eval $(call int_vars,$(package))))

#include package files

$(foreach package,$(all_packages),$(eval include packages/$(package).mk))

#compute a hash of all files that comprise this package's build recipe

$(foreach package,$(all_packages),$(eval $(call int_get_build_recipe_hash,$(package))))

#generate a unique id for this package, incorporating its dependencies as well

$(foreach package,$(all_packages),$(eval $(call int_get_build_id,$(package))))

#compute final vars after reading package vars

$(foreach package,$(all_packages),$(eval $(call int_config_attach_build_config,$(package))))

#create build targets

$(foreach package,$(all_packages),$(eval $(call int_add_cmds,$(package))))

#special exception: if a toolchain package exists, all non-native packages depend on it

$(foreach package,$(packages),$(eval $($(package)_unpacked): |$($($(host_arch)_$(host_os)_native_toolchain)_cached) ))