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58 lines
1.9 KiB
Makefile
58 lines
1.9 KiB
Makefile
# -*- makefile -*-
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# vim:set ts=8 sw=8 sts=8 noet:
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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 file,
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# You can obtain one at http://mozilla.org/MPL/2.0/.
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#
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ifndef INCLUDED_AUTOTARGETS_MK #{
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# Conditional does not wrap the entire file so multiple
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# includes will be able to accumulate dependencies.
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###########################################################################
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# AUTO_DEPS - A list of deps/targets drived from other macros.
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###########################################################################
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MKDIR ?= mkdir -p
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TOUCH ?= touch
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###########################################################################
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# Threadsafe directory creation
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# GENERATED_DIRS - Automated creation of these directories.
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###########################################################################
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mkdir_deps =$(foreach dir,$(getargv),$(dir)/.mkdir.done)
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%/.mkdir.done: # mkdir -p -p => mkdir -p
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$(subst $(SPACE)-p,$(null),$(MKDIR)) -p $(dir $@)
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@$(TOUCH) $@
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# A handful of makefiles are attempting "mkdir dot". Likely not intended
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# or stale logic so add a stub target to handle the request and warn for now.
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.mkdir.done:
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@echo "WARNING: $(MKDIR) -dot- requested by $(MAKE) -C $(CURDIR) $(MAKECMDGOALS)"
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@$(TOUCH) $@
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INCLUDED_AUTOTARGETS_MK = 1
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endif #}
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## Accumulate deps and cleanup
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ifneq (,$(GENERATED_DIRS))
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tmpauto :=$(call mkdir_deps,GENERATED_DIRS)
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GENERATED_DIRS_DEPS +=$(tmpauto)
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GARBAGE_DIRS +=$(tmpauto)
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endif
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#################################################################
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# One ring/dep to rule them all:
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# config/rules.mk::all target is available by default
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# Add $(AUTO_DEPS) as an explicit target dependency when needed.
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#################################################################
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AUTO_DEPS +=$(GENERATED_DIRS_DEPS)
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# Complain loudly if deps have not loaded so getargv != $(NULL)
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$(call requiredfunction,getargv)
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