gecko/config/makefiles/autotargets.mk

58 lines
1.9 KiB
Makefile

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