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4734e201cf
Differential Revision: https://phabricator.services.mozilla.com/D51977 --HG-- extra : moz-landing-system : lando
234 lines
8.4 KiB
Makefile
234 lines
8.4 KiB
Makefile
# 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 file,
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# You can obtain one at http://mozilla.org/MPL/2.0/.
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ifndef INCLUDED_RULES_MK
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include $(topsrcdir)/config/rules.mk
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endif
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# The traditional model of directory traversal with make is as follows:
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# make -C foo
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# Entering foo
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# make -C bar
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# Entering foo/bar
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# make -C baz
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# Entering foo/baz
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# make -C qux
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# Entering qux
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#
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# Pseudo derecurse transforms the above into:
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# make -C foo
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# make -C foo/bar
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# make -C foo/baz
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# make -C qux
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ifeq (.,$(DEPTH))
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include root.mk
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# Main rules (export, compile, libs and tools) call recurse_* rules.
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# This wrapping is only really useful for build status.
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$(RUNNABLE_TIERS)::
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$(if $(filter $@,$(MAKECMDGOALS)),$(call BUILDSTATUS,TIERS $@),)
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$(call BUILDSTATUS,TIER_START $@)
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+$(MAKE) recurse_$@
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$(call BUILDSTATUS,TIER_FINISH $@)
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# Special rule that does install-manifests (cf. Makefile.in) + compile
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binaries::
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+$(MAKE) recurse_compile
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# Carefully avoid $(eval) type of rule generation, which makes pymake slower
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# than necessary.
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# Get current tier and corresponding subtiers from the data in root.mk.
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CURRENT_TIER := $(filter $(foreach tier,$(RUNNABLE_TIERS) $(non_default_tiers),recurse_$(tier) $(tier)-deps),$(MAKECMDGOALS))
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ifneq (,$(filter-out 0 1,$(words $(CURRENT_TIER))))
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$(error $(CURRENT_TIER) not supported on the same make command line)
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endif
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CURRENT_TIER := $(subst recurse_,,$(CURRENT_TIER:-deps=))
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# The rules here are doing directory traversal, so we don't want further
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# recursion to happen when running make -C subdir $tier. But some make files
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# further call make -C something else, and sometimes expect recursion to
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# happen in that case.
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# Conveniently, every invocation of make increases MAKELEVEL, so only stop
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# recursion from happening at current MAKELEVEL + 1.
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ifdef CURRENT_TIER
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ifeq (0,$(MAKELEVEL))
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export NO_RECURSE_MAKELEVEL=1
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else
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export NO_RECURSE_MAKELEVEL=$(word $(MAKELEVEL),2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20)
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endif
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endif
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RECURSE = $(if $(RECURSE_TRACE_ONLY),@echo $2/$1,$(call SUBMAKE,$1,$2))
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# Use the $(*_dirs) variables available in root.mk
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CURRENT_DIRS := $($(CURRENT_TIER)_dirs)
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# Need a list of compile targets because we can't use pattern rules:
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# https://savannah.gnu.org/bugs/index.php?42833
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# Only recurse the paths starting with RECURSE_BASE_DIR when provided.
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.PHONY: $(compile_targets) $(syms_targets)
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$(compile_targets) $(syms_targets):
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$(if $(filter $(RECURSE_BASE_DIR)%,$@),$(call RECURSE,$(@F),$(@D)))
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$(syms_targets): %/syms: %/target
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# Only hook symbols targets into the main compile graph in automation.
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ifdef MOZ_AUTOMATION
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ifeq (1,$(MOZ_AUTOMATION_BUILD_SYMBOLS))
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recurse_compile: $(syms_targets)
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endif
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endif
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# Create a separate rule that depends on every 'syms' target so that
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# symbols can be dumped on demand locally.
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.PHONY: recurse_syms
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recurse_syms: $(syms_targets)
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# Ensure dump_syms gets built before any syms targets, all of which depend on it.
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ifneq (,$(filter toolkit/crashreporter/google-breakpad/src/tools/%/dump_syms/host,$(compile_targets)))
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$(syms_targets): $(filter toolkit/crashreporter/google-breakpad/src/tools/%/dump_syms/host,$(compile_targets))
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endif
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# The compile tier has different rules from other tiers.
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ifneq ($(CURRENT_TIER),compile)
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# Recursion rule for all directories traversed for all subtiers in the
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# current tier.
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$(addsuffix /$(CURRENT_TIER),$(CURRENT_DIRS)): %/$(CURRENT_TIER):
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$(call RECURSE,$(CURRENT_TIER),$*)
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.PHONY: $(addsuffix /$(CURRENT_TIER),$(CURRENT_DIRS))
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# Dummy rules for possibly inexisting dependencies for the above tier targets
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$(addsuffix /Makefile,$(CURRENT_DIRS)) $(addsuffix /backend.mk,$(CURRENT_DIRS)):
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ifeq ($(CURRENT_TIER),export)
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# At least build/export requires config/export for buildid, but who knows what
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# else, so keep this global dependency to make config/export first for now.
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$(addsuffix /$(CURRENT_TIER),$(filter-out config,$(CURRENT_DIRS))): config/$(CURRENT_TIER)
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# The export tier requires nsinstall, which is built from config. So every
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# subdirectory traversal needs to happen after building nsinstall in config, which
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# is done with the config/host target. Note the config/host target only exists if
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# nsinstall is actually built, which it is not on Windows, because we use
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# nsinstall.py there.
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ifdef COMPILE_ENVIRONMENT
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ifneq (,$(filter config/host, $(compile_targets)))
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$(addsuffix /$(CURRENT_TIER),$(CURRENT_DIRS)): config/host
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endif
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endif
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endif
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endif # ifeq ($(CURRENT_TIER),compile)
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else
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# Don't recurse if MAKELEVEL is NO_RECURSE_MAKELEVEL as defined above
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ifeq ($(NO_RECURSE_MAKELEVEL),$(MAKELEVEL))
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$(RUNNABLE_TIERS)::
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else
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#########################
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# Tier traversal handling
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#########################
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define CREATE_SUBTIER_TRAVERSAL_RULE
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.PHONY: $(1)
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$(1):: $$(SUBMAKEFILES)
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$$(LOOP_OVER_DIRS)
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endef
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$(foreach subtier,$(filter-out compile,$(RUNNABLE_TIERS)),$(eval $(call CREATE_SUBTIER_TRAVERSAL_RULE,$(subtier))))
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ifndef TOPLEVEL_BUILD
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ifdef COMPILE_ENVIRONMENT
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compile::
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@$(MAKE) -C $(DEPTH) compile RECURSE_BASE_DIR=$(relativesrcdir)/
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endif # COMPILE_ENVIRONMENT
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endif
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endif # ifeq ($(NO_RECURSE_MAKELEVEL),$(MAKELEVEL))
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endif # ifeq (.,$(DEPTH))
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recurse:
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@$(RECURSED_COMMAND)
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$(LOOP_OVER_DIRS)
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ifeq (.,$(DEPTH))
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# Interdependencies for parallel export.
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js/xpconnect/src/export: dom/bindings/export xpcom/xpidl/export
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accessible/xpcom/export: xpcom/xpidl/export
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# The Android SDK bindings needs to build the Java generator code
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# source code in order to write the SDK bindings.
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widget/android/bindings/export: mobile/android/base/export
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# The widget JNI wrapper generator code needs to build the GeckoView
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# source code in order to find JNI wrapper annotations.
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widget/android/export: mobile/android/base/export
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# .xpt generation needs the xpidl lex/yacc files
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xpcom/xpidl/export: xpcom/idl-parser/xpidl/export
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# CSS2Properties.webidl needs ServoCSSPropList.py from layout/style
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dom/bindings/export: layout/style/export
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# Various telemetry histogram files need ServoCSSPropList.py from layout/style
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toolkit/components/telemetry/export: layout/style/export
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ifdef ENABLE_CLANG_PLUGIN
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# Only target rules use the clang plugin.
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$(filter %/target %/target-objects,$(filter-out config/export config/host build/unix/stdc++compat/% build/clang-plugin/%,$(compile_targets))): build/clang-plugin/host build/clang-plugin/tests/target-objects
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build/clang-plugin/tests/target-objects: build/clang-plugin/host
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# clang-plugin tests require js-confdefs.h on js standalone builds and mozilla-config.h on
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# other builds, because they are -include'd.
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ifdef JS_STANDALONE
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# The js/src/export target only exists when CURRENT_TIER is export. If we're in a later tier,
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# we can assume js/src/export has happened anyways.
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ifeq ($(CURRENT_TIER),export)
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build/clang-plugin/tests/target-objects: js/src/export
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endif
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else
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build/clang-plugin/tests/target-objects: mozilla-config.h
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endif
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endif
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# Interdependencies that moz.build world don't know about yet for compilation.
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# Note some others are hardcoded or "guessed" in recursivemake.py and emitter.py
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ifeq ($(MOZ_WIDGET_TOOLKIT),gtk)
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toolkit/library/target: widget/gtk/mozgtk/gtk3/target
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endif
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# Most things are built during compile (target/host), but some things happen during export
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# Those need to depend on config/export for system wrappers.
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$(addprefix build/unix/stdc++compat/,target host) build/clang-plugin/host: config/export
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# Rust targets, and export targets that run cbindgen need
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# $topobjdir/.cargo/config to be preprocessed first. Ideally, we'd only set it
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# as a dependency of the rust targets, but unfortunately, that pushes Make to
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# execute them much later than we'd like them to be when the file doesn't exist
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# prior to Make running. So we also set it as a dependency of pre-export, which
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# ensures it exists before recursing the rust targets and the export targets
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# that run cbindgen, tricking Make into keeping them early.
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$(rust_targets) gfx/webrender_bindings/export layout/style/export xpcom/base/export: $(DEPTH)/.cargo/config
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ifndef TEST_MOZBUILD
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pre-export:: $(DEPTH)/.cargo/config
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endif
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# When building gtest as part of the build (LINK_GTEST_DURING_COMPILE),
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# force the build system to get to it first, so that it can be linked
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# quickly without LTO, allowing the build system to go ahead with
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# plain gkrust and libxul while libxul-gtest is being linked and
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# dump-sym'ed.
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ifneq (,$(filter toolkit/library/gtest/rust/target,$(compile_targets)))
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toolkit/library/rust/target: toolkit/library/gtest/rust/target
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endif
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endif
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