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openwrt/include/host-build.mk
Michael Pratt 129be247a6 build: disable automake dependency tracking 
Recent versions of Automake
have changed dependency tracking significantly
(reference commit below)
causing breakage in some package builds
when using newer Automake with packages that need autoreconf
that were bootstrapped with an old version of Automake.

Those changes cause a great inconsistency between packages over time
where some packages may or may not use this feature,
and may or may not update the .ac and .am files
to work with the new methods.
This problem might exist in many packages
where autoreconf is not currently required,
but would cause build failure if autoreconf is used.

Fortunately, this feature is practically useless
for the purposes of Openwrt and the average developer,
so we can disable it.

GNU Automake manual states in part:

  "Because dependencies are only computed as a side-effect of compilation...
   no dependency information exists the first time a package is built...
   dependency tracking is completely useless for one-time builds..."

A nice side-effect is that build times are slightly faster.

Ref: 6a675ef17edf7109da189f5ae70e2dc6b7665896 (automake.git)
Signed-off-by: Michael Pratt <mcpratt@pm.me>
2023-03-13 22:53:41 +01:00

216 lines
6.3 KiB
Makefile
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# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2006-2020 OpenWrt.org
include $(INCLUDE_DIR)/download.mk
HOST_BUILD_DIR ?= $(BUILD_DIR_HOST)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
HOST_INSTALL_DIR ?= $(HOST_BUILD_DIR)/host-install
HOST_BUILD_PARALLEL ?=
HOST_MAKE_J:=$(if $(MAKE_JOBSERVER),$(MAKE_JOBSERVER) $(if $(filter 3.% 4.0 4.1,$(MAKE_VERSION)),-j))
ifeq ($(strip $(HOST_BUILD_PARALLEL)),0)
HOST_JOBS?=-j1
else
HOST_JOBS?=$(if $(HOST_BUILD_PARALLEL),$(HOST_MAKE_J),-j1)
endif
include $(INCLUDE_DIR)/unpack.mk
include $(INCLUDE_DIR)/depends.mk
include $(INCLUDE_DIR)/quilt.mk
BUILD_TYPES += host
HOST_STAMP_PREPARED=$(HOST_BUILD_DIR)/.prepared$(if $(HOST_QUILT)$(DUMP),,$(shell $(call $(if $(CONFIG_AUTOREMOVE),find_md5_reproducible,find_md5),${CURDIR} $(PKG_FILE_DEPENDS),))_$(call confvar,CONFIG_AUTOREMOVE $(HOST_PREPARED_DEPENDS)))
HOST_STAMP_CONFIGURED:=$(HOST_BUILD_DIR)/.configured
HOST_STAMP_BUILT:=$(HOST_BUILD_DIR)/.built
HOST_BUILD_PREFIX?=$(if $(IS_PACKAGE_BUILD),$(STAGING_DIR_HOSTPKG),$(STAGING_DIR_HOST))
HOST_STAMP_INSTALLED:=$(HOST_BUILD_PREFIX)/stamp/.$(PKG_NAME)_installed
override MAKEFLAGS=
include $(INCLUDE_DIR)/autotools.mk
_host_target:=$(if $(HOST_QUILT),,.)
Host/Patch:=$(Host/Patch/Default)
ifneq ($(strip $(HOST_UNPACK)),)
define Host/Prepare/Default
$(HOST_UNPACK)
[ ! -d ./src/ ] || $(CP) ./src/* $(HOST_BUILD_DIR)
$(Host/Patch)
endef
endif
define Host/Prepare
$(call Host/Prepare/Default)
endef
HOST_CONFIGURE_VARS = \
CC="$(HOSTCC)" \
CFLAGS="$(HOST_CFLAGS)" \
CXX="$(HOSTCXX)" \
CPPFLAGS="$(HOST_CPPFLAGS)" \
CXXFLAGS="$(HOST_CXXFLAGS)" \
LDFLAGS="$(HOST_LDFLAGS)" \
CONFIG_SHELL="$(SHELL)"
HOST_CONFIGURE_ARGS = \
--target=$(GNU_HOST_NAME) \
--host=$(GNU_HOST_NAME) \
--build=$(GNU_HOST_NAME) \
--disable-dependency-tracking \
--program-prefix="" \
--program-suffix="" \
--prefix=$(HOST_BUILD_PREFIX) \
--exec-prefix=$(HOST_BUILD_PREFIX) \
--sysconfdir=$(HOST_BUILD_PREFIX)/etc \
--localstatedir=$(HOST_BUILD_PREFIX)/var \
--sbindir=$(HOST_BUILD_PREFIX)/bin
HOST_MAKE_VARS = \
CFLAGS="$(HOST_CFLAGS)" \
CPPFLAGS="$(HOST_CPPFLAGS)" \
CXXFLAGS="$(HOST_CXXFLAGS)" \
LDFLAGS="$(HOST_LDFLAGS)"
HOST_MAKE_FLAGS =
HOST_CONFIGURE_CMD = $(BASH) ./configure
ifeq ($(HOST_OS),Darwin)
HOST_CONFIG_SITE:=$(INCLUDE_DIR)/site/darwin
endif
define Host/Configure/Default
$(if $(HOST_CONFIGURE_PARALLEL),+)(cd $(HOST_BUILD_DIR)/$(3); \
if [ -x configure ]; then \
$(CP) $(SCRIPT_DIR)/config.{guess,sub} $(HOST_BUILD_DIR)/$(3)/ && \
$(HOST_CONFIGURE_VARS) \
$(2) \
$(HOST_CONFIGURE_CMD) \
$(HOST_CONFIGURE_ARGS) \
$(1); \
fi \
)
endef
define Host/Configure
$(call Host/Configure/Default)
endef
define Host/Compile/Default
+$(HOST_MAKE_VARS) \
$(MAKE) $(HOST_JOBS) -C $(HOST_BUILD_DIR) \
$(HOST_MAKE_FLAGS) \
$(1)
endef
define Host/Compile
$(call Host/Compile/Default)
endef
define Host/Install/Default
$(call Host/Compile/Default,install)
endef
define Host/Install
$(call Host/Install/Default,$(HOST_BUILD_PREFIX))
endef
ifneq ($(if $(HOST_QUILT),,$(CONFIG_AUTOREBUILD)),)
define HostHost/Autoclean
$(call rdep,${CURDIR} $(PKG_FILE_DEPENDS),$(HOST_STAMP_PREPARED))
$(if $(if $(Host/Compile),$(filter prepare,$(MAKECMDGOALS)),1),,$(call rdep,$(HOST_BUILD_DIR),$(HOST_STAMP_BUILT)))
endef
endif
define Host/Exports/Default
$(1) : export ACLOCAL_INCLUDE=$$(foreach p,$$(wildcard $$(STAGING_DIR_HOST)/share/aclocal $$(STAGING_DIR_HOST)/share/aclocal-* $(if $(IS_PACKAGE_BUILD),$$(STAGING_DIR)/host/share/aclocal $$(STAGING_DIR_HOSTPKG)/share/aclocal $$(STAGING_DIR)/host/share/aclocal-*)),-I $$(p))
$(1) : export STAGING_PREFIX=$$(HOST_BUILD_PREFIX)
$(1) : export PKG_CONFIG_PATH=$$(STAGING_DIR_HOST)/lib/pkgconfig:$$(HOST_BUILD_PREFIX)/lib/pkgconfig
$(1) : export PKG_CONFIG_LIBDIR=$$(HOST_BUILD_PREFIX)/lib/pkgconfig
$(if $(HOST_CONFIG_SITE),$(1) : export CONFIG_SITE:=$(HOST_CONFIG_SITE))
$(if $(IS_PACKAGE_BUILD),$(1) : export PATH=$$(TARGET_PATH_PKG))
endef
Host/Exports=$(Host/Exports/Default)
.NOTPARALLEL:
ifndef DUMP
define HostBuild/Core
$(if $(HOST_QUILT),$(Host/Quilt))
$(if $(DUMP),,$(call HostHost/Autoclean))
$(HOST_STAMP_PREPARED):
@-rm -rf $(HOST_BUILD_DIR)
@mkdir -p $(HOST_BUILD_DIR)
$(foreach hook,$(Hooks/HostPrepare/Pre),$(call $(hook))$(sep))
$(call Host/Prepare)
$(foreach hook,$(Hooks/HostPrepare/Post),$(call $(hook))$(sep))
touch $$@
$(call Host/Exports,$(HOST_STAMP_CONFIGURED))
$(HOST_STAMP_CONFIGURED): $(HOST_STAMP_PREPARED)
$(foreach hook,$(Hooks/HostConfigure/Pre),$(call $(hook))$(sep))
$(call Host/Configure)
$(foreach hook,$(Hooks/HostConfigure/Post),$(call $(hook))$(sep))
touch $$@
$(call Host/Exports,$(HOST_STAMP_BUILT))
$(HOST_STAMP_BUILT): $(HOST_STAMP_CONFIGURED)
$(foreach hook,$(Hooks/HostCompile/Pre),$(call $(hook))$(sep))
$(call Host/Compile)
$(foreach hook,$(Hooks/HostCompile/Post),$(call $(hook))$(sep))
touch $$@
$(call Host/Exports,$(HOST_STAMP_INSTALLED))
$(HOST_STAMP_INSTALLED): $(HOST_STAMP_BUILT) $(if $(FORCE_HOST_INSTALL),FORCE)
$(call Host/Install,$(HOST_BUILD_PREFIX))
$(foreach hook,$(Hooks/HostInstall/Post),$(call $(hook))$(sep))
mkdir -p $$(shell dirname $$@)
touch $(HOST_STAMP_BUILT)
touch $$@
$(call DefaultTargets,$(patsubst %,host-%,$(DEFAULT_SUBDIR_TARGETS)))
ifndef STAMP_BUILT
$(foreach t,$(DEFAULT_SUBDIR_TARGETS),
$(t): host-$(t)
.$(t): .host-$(t)
)
clean-build: host-clean-build
endif
$(call check_download_integrity)
$(_host_target)host-prepare: $(HOST_STAMP_PREPARED)
$(_host_target)host-configure: $(HOST_STAMP_CONFIGURED)
$(_host_target)host-compile: $(HOST_STAMP_BUILT) $(HOST_STAMP_INSTALLED)
host-install: host-compile
host-clean-build: FORCE
$(call Host/Uninstall)
rm -rf $(HOST_BUILD_DIR) $(HOST_STAMP_BUILT)
host-clean: host-clean-build
$(call Host/Clean)
rm -rf $(HOST_STAMP_INSTALLED)
ifneq ($(CONFIG_AUTOREMOVE),)
host-compile:
$(FIND) $(HOST_BUILD_DIR) -mindepth 1 -maxdepth 1 -not '(' -type f -and -name '.*' -and -size 0 ')' -print0 | \
$(XARGS) -0 rm -rf
endif
endef
endif
define HostBuild
$(HostBuild/Core)
$(if $(if $(PKG_HOST_ONLY),,$(if $(and $(filter host-%,$(MAKECMDGOALS)),$(PKG_SKIP_DOWNLOAD)),,$(STAMP_PREPARED))),,
$(if $(and $(CONFIG_AUTOREMOVE), $(wildcard $(HOST_STAMP_INSTALLED), $(wildcard $(HOST_STAMP_BUILT)))),,
$(if $(strip $(PKG_SOURCE_URL)),$(call Download,default))
)
)
endef
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