2ec4aa9f24
...which had been broken with 1ffd6897dd "try to
use also proper debug LDFLAGS for externals libraries", and e.g. one of my macOS
builds uses a non-standard Clang compiler and libc++ library, and thus needs
LDFLAGS=-L/Users/stephan/llvm/inst/lib
in autogen.input
Change-Id: Iae67a4a13603b0241e5cd6c0d01a07ac898ffb58
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/133746
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
238 lines
9.5 KiB
Makefile
238 lines
9.5 KiB
Makefile
# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
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#
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# This file is part of the LibreOffice project.
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#
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# class ExternalProject
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# Handles build of an external project
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# Build of an external typically uses three gbuild classes:
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# ExternalProject, ExternalPackage or Package, and UnpackedTarball. The
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# first step is to prepare sources using UnpackedTarball. The tarball is
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# passed to an ExternalProject, which handles the build proper and the
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# results are delivered by an ExternalPackage (or Package, again;
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# Package is sufficient if no files--e.g., headers--from the unpacked
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# tarball need to be delivered.)
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#
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# An ExternalProject always uses one UnpackedTarball with the same name.
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# The dependency structure ensures that any change on a dependency
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# of the ExternalProject will cause the UnpackedTarball to be unpacked
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# again, so the ExternalProject always does a clean build and is not at
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# the mercy of the external's build system's dubious incremental builds.
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#
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# ExternalProject target
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# => ExternalProject state target(s) (these actually build stuff)
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# => UnpackedTarball target (unpack the tarball)
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# => UnpackedTarball prepare target
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# => ExternalProject prepare target
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# => stuff the external depends upon
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#
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# ExternalProject has no gbuild abstraction for actually building the
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# external code, so it is necessary to define rule(s) and recipe(s) to
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# handle it. It does not matter if there are several rules handling
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# separate phases of the build (e.g., configure, build, install) or if
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# the whole build is handled by one rule.
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#
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# ExternalProject uses two directories during the build: state dir
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# serves to keep file targets that mark state of the build progress
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# (e.g., "configure done", "build done") and the targets are accessible
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# via gb_ExternalProject_get_state_target. It is highly advised to
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# register them using gb_ExternalProject_register_targets. The second
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# directory is work dir, accessible only from recipes via variable
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# $(EXTERNAL_WORKDIR).
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$(dir $(call gb_ExternalProject_get_statedir,%))%/.dir :
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$(if $(wildcard $(dir $@)),,mkdir -p $(dir $@))
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$(dir $(call gb_ExternalProject_get_target,%)).dir :
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$(if $(wildcard $(dir $@)),,mkdir -p $(dir $@))
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$(call gb_ExternalProject_get_preparation_target,%) :
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touch $@
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$(call gb_ExternalProject_get_target,%) :
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$(call gb_Output_announce,$*,$(true),PRJ,3)
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$(call gb_Trace_MakeMark,$*,PRJ)
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touch $@
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.PHONY : $(call gb_ExternalProject_get_clean_target,%)
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$(call gb_ExternalProject_get_clean_target,%) :
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$(call gb_Output_announce,$*,$(false),PRJ,3)
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$(call gb_Helper_abbreviate_dirs,\
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rm -rf \
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$(call gb_ExternalProject_get_target,$*) \
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$(call gb_ExternalProject_get_statedir,$*) \
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)
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# Define a new external project, using an unpacked tarball of the same name
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#
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# gb_ExternalProject_ExternalProject project
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define gb_ExternalProject_ExternalProject
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$(call gb_ExternalProject_get_target,$(1)) : EXTERNAL_WORKDIR := $(call gb_UnpackedTarball_get_dir,$(1))
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$(call gb_ExternalProject_get_preparation_target,$(1)) : $(gb_Module_CURRENTMAKEFILE)
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$(call gb_ExternalProject_get_preparation_target,$(1)) :| $(dir $(call gb_ExternalProject_get_target,$(1))).dir
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$(call gb_UnpackedTarball_get_preparation_target,$(1)) : $(call gb_ExternalProject_get_preparation_target,$(1))
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$(call gb_ExternalProject_get_clean_target,$(1)) : $(call gb_UnpackedTarball_get_clean_target,$(1))
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$(call gb_ExternalProject_get_target,$(1)) : $(call gb_UnpackedTarball_get_target,$(1))
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$(call gb_ExternalProject_get_target,$(1)) :| $(dir $(call gb_ExternalProject_get_target,$(1))).dir
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$$(eval $$(call gb_Module_register_target,$(call gb_ExternalProject_get_target,$(1)),$(call gb_ExternalProject_get_clean_target,$(1))))
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$(call gb_Helper_make_userfriendly_targets,$(1),ExternalProject)
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endef
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# Depend on an unpacked tarball
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#
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# This is needed to express dependencies on header-only projects, which
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# do not have any ExternalProject.
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#
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# gb_ExternalProject_use_unpacked project unpacked
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define gb_ExternalProject_use_unpacked
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$(call gb_ExternalProject_get_preparation_target,$(1)) : $(call gb_UnpackedTarball_get_target,$(2))
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endef
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# Register a target in state directory
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#
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# This function defines proper dependencies for the target to ensure
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# that:
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# * the main target is updated if this target is updated
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# * this target is updated if the unpacked tarball has changed.
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#
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# gb_ExternalProject_register_target project target
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define gb_ExternalProject_register_target
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$(call gb_ExternalProject_get_target,$(1)) : $(call gb_ExternalProject_get_state_target,$(1),$(2))
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$(call gb_ExternalProject_get_state_target,$(1),$(2)) : $(call gb_UnpackedTarball_get_target,$(1))
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$(call gb_ExternalProject_get_state_target,$(1),$(2)) :| $(dir $(call gb_ExternalProject_get_state_target,$(1),$(2))).dir
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endef
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# Register several targets at once
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#
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# gb_ExternalProject_register_targets project target(s)
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define gb_ExternalProject_register_targets
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$(foreach target,$(2),$(call gb_ExternalProject_register_target,$(1),$(target)))
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endef
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# Make an external Project depend on another ExternalProject
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define gb_ExternalProject_use_external_project
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$(call gb_ExternalProject_get_preparation_target,$(1)) : $(call gb_ExternalProject_get_target,$(2))
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endef
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# call gb_ExternalProject_use_external_projects,project,projects
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define gb_ExternalProject_use_external_projects
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$(foreach ext,$(2),$(call gb_ExternalProject_use_external_project,$(1),$(ext)))
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endef
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# Make an ExternalProject depend on an external
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#
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# this forwards to functions that must be defined in RepositoryExternal.mk.
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# $(eval $(call gb_ExternalProject_use_external,library,external))
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define gb_ExternalProject_use_external
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$(if $(filter undefined,$(origin gb_ExternalProject__use_$(2))),\
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$(error gb_ExternalProject_use_external: unknown external: $(2)),\
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$(call gb_ExternalProject__use_$(2),$(1)))
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endef
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define gb_ExternalProject_use_externals
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$(foreach external,$(2),$(call gb_ExternalProject_use_external,$(1),$(external)))
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endef
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# Make an external project depend on a package
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#
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# This is most useful for depending on output files created by another
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# ExternalProject.
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#
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# gb_ExternalProject_use_package external package
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define gb_ExternalProject_use_package
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$(call gb_ExternalProject_get_preparation_target,$(1)) : $(call gb_Package_get_target,$(2))
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endef
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# Make an external project depend on several packages at once
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#
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# gb_ExternalProject_use_packages external package(s)
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define gb_ExternalProject_use_packages
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$(foreach package,$(2),$(call gb_ExternalProject_use_package,$(1),$(package)))
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endef
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# Make an external project depend on a StaticLibrary
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#
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# Realistically there are some externals that do not have a usable build
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# system, and other externals that do may depend on those.
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#
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# gb_ExternalProject_use_static_libraries external staticlibraries
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define gb_ExternalProject_use_static_libraries
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$(call gb_ExternalProject_get_preparation_target,$(1)) : \
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$(foreach lib,$(2),$(call gb_StaticLibrary_get_target,$(lib)))
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endef
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# Make an external project depend on a Library
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#
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# Realistically there are some externals that do not have a usable build
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# system, and other externals that do may depend on those.
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#
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# gb_ExternalProject_use_libraries external libraries
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define gb_ExternalProject_use_libraries
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ifneq (,$$(filter-out $(gb_Library_KNOWNLIBS) $(gb_LinkTarget__syslib),$(2)))
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$$(eval $$(call gb_Output_info,currently known libraries are: $(sort $(gb_Library_KNOWNLIBS)),ALL))
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$$(eval $$(call gb_Output_error,Cannot link against library/libraries $$(filter-out $(gb_Library_KNOWNLIBS) $(gb_LinkTarget__syslib),$(2)). Libraries must be registered in Repository.mk or RepositoryExternal.mk))
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endif
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ifneq (,$$(filter $$(gb_MERGEDLIBS),$(2)))
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$$(eval $$(call gb_Output_error,Cannot link against library/libraries $$(filter $$(gb_MERGEDLIBS),$(2)) because they are merged.))
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endif
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$(call gb_ExternalProject_get_preparation_target,$(1)) : \
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$(foreach lib,$(2),$(call gb_Library_get_target,$(lib)))
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endef
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# Make an external project depend on a Jar file
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#
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# gb_ExternalProject_use_jars external jars
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define gb_ExternalProject_use_jars
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$(call gb_ExternalProject_get_preparation_target,$(1)) : \
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$(foreach jar,$(2),$(call gb_Jar_get_target,$(jar)))
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endef
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# Returns flags to include in CFLAGS/CXXFLAGS to enable optimizations and/or debugging.
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# gb_ExternalProject_get_build_flags project
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gb_ExternalProject_get_build_flags = $(call gb_LinkTarget__get_debugflags,ExternalProject_$(1))
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# Returns flags to include in LDFLAGS to enable optimizations and/or debugging.
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# gb_ExternalProject_get_link_flags project
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gb_ExternalProject_get_link_flags = $(LDFLAGS) $(USE_LD) $(call gb_LinkTarget__get_debugldflags,ExternalProject_$(1))
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# Run a target command
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#
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# This provides a wrapper that changes to the right directory,
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# touches the 'target' if successful and also provides
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# the ability to hide the output if there is no failure
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# gb_ExternalProject_run,run_target,command,optional_extra_sub_directory,optional_log_filename)
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# default log_filename is <run_target>.log
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#
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define gb_ExternalProject_run
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$(if $(findstring YES,$(UNPACKED_IS_BIN_TARBALL)),\
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touch $@,
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$(call gb_Helper_print_on_error,cd $(EXTERNAL_WORKDIR)/$(3) && \
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unset Platform && \
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$(if $(WRAPPERS),export $(WRAPPERS) &&) \
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$(if $(NMAKE),export $(NMAKE) &&) \
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$(if $(gb_COMPILER_SETUP),export $(gb_COMPILER_SETUP) &&) \
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$(2) && touch $@,$(EXTERNAL_WORKDIR)/$(if $(3),$(3)/,)$(if $(4),$(4),$(1).log))
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)
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endef
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# vim: set noet sw=4 ts=4:
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