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# Copyright (C) 2011 Modestas Vainius <modax@debian.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>
ifndef dhmk_this_makefile
dhmk_this_makefile := $(lastword $(MAKEFILE_LIST))
dhmk_top_makefile := $(firstword $(MAKEFILE_LIST))
dhmk_stamped_targets = configure build-indep build-arch build
dhmk_dynamic_targets = install-indep install-arch install binary-indep binary-arch binary clean
dhmk_standard_targets = $(dhmk_stamped_targets) $(dhmk_dynamic_targets)
dhmk_indeparch_targets = build install binary
dhmk_rules_mk = debian/dhmk_rules.mk
dhmk_dhmk_pl := $(dir $(dhmk_this_makefile))dhmk.pl
# Variables holding all (incl. -indep, -arch) targets for each action
$(foreach t,$(dhmk_indeparch_targets),$(eval dhmk_$(t)_targets = $(t)-indep $(t)-arch))
$(foreach t,$(filter-out %-arch %-indep,$(dhmk_standard_targets)),\
$(eval dhmk_$(t)_targets += $(t)))
# A helper routine to set additional command options
set_command_options = $(foreach t,$(filter $(or $3,%),$(dhmk_standard_targets)),\
$(foreach c,$(filter $1,$(dhmk_$(t)_commands)),\
$(eval $(t)_$(c) $2)))
# $(call butfirstword,TEXT,DELIMITER)
butfirstword = $(patsubst $(firstword $(subst $2, ,$1))$2%,%,$1)
# Use this to retrieve full command line to the overriden command in the
# override_% targets
overriden_command = $($(DHMK_TARGET)_$(call butfirstword,$@,_)) $(DHMK_OPTIONS)
# This makefile is not parallel compatible by design (e.g. command chains
# below)
.NOTPARALLEL:
# FORCE target is used in the prerequsite lists to imitiate .PHONY behaviour
.PHONY: FORCE
############ Handle override calculation ############
ifeq ($(dhmk_override_info_mode),yes)
# Emit magic directives for commands which are not overriden
override_%: FORCE
##dhmk_no_override##$*
else
############ Do all sequencing ######################
# Generate and include a dhmk rules file
$(dhmk_rules_mk): $(MAKEFILE_LIST) $(dhmk_dhmk_pl)
$(dhmk_dhmk_pl) $(dh)
# Create an out-of-date rules file if it does not exist. Avoids make warning
include $(shell test ! -f $(dhmk_rules_mk) && touch -t 197001030000 $(dhmk_rules_mk); echo $(dhmk_rules_mk))
# Routine used to run an override target if there is one ($1 should be
# override_{command})
define dhmk_override_cmd
$(if $(dhmk_$1),
# Running override target ($1)
test -z "`ls debian/*.debhelper.log 2>/dev/null`" || sed -i '/^$1[[:space:]]/d' debian/*.debhelper.log
$(MAKE) -f $(dhmk_top_makefile) $1 DH_INTERNAL_OVERRIDE="$(call butfirstword,$1,_)" \
)
endef
# Routine to run a specific command ($1 should be {target}_{command})
dhmk_run_command = $(or $(call dhmk_override_cmd,override_$(call butfirstword,$1,_)),$($1) $(DHMK_OPTIONS))
# Generate {pre,post}_{target}_{command} targets for each target+command
$(foreach t,$(dhmk_standard_targets),$(foreach c,$(dhmk_$(t)_commands),pre_$(t)_$(c))): pre_%:
$(call dhmk_run_command,$*) $(and $(DH_INTERNAL_OPTIONS),# [$(DH_INTERNAL_OPTIONS)])
$(foreach t,$(dhmk_standard_targets),$(foreach c,$(dhmk_$(t)_commands),post_$(t)_$(c))): post_%:
# Export -a/-i options for indep/arch specific targets
$(foreach t,$(dhmk_indeparch_targets),debian/dhmk_$(t)-indep): export DH_INTERNAL_OPTIONS := -i
$(foreach t,$(dhmk_indeparch_targets),debian/dhmk_$(t)-arch): export DH_INTERNAL_OPTIONS := -a
# Mark dynamic standard targets as PHONY
.PHONY: $(foreach t,$(dhmk_dynamic_targets),debian/dhmk_$(t))
# Create debian/dhmk_{action} targets.
# NOTE: dhmk_run_{target}_commands are defined below
$(foreach t,$(dhmk_standard_targets),debian/dhmk_$(t)): debian/dhmk_%:
$(MAKE) -f $(dhmk_top_makefile) dhmk_run_$*_commands DHMK_TARGET="$*"
$(if $(filter $*,$(dhmk_stamped_targets)),touch $@)
$(if $(filter clean,$*),rm -f $(dhmk_rules_mk)\
$(foreach t,$(dhmk_stamped_targets),debian/dhmk_$(t)))
# "$*" target is done
.PHONY: $(foreach t,$(dhmk_standard_targets),dhmk_run_$(t)_commands \
pre_$(t) post_$(t) \
$(foreach c,$(dhmk_$(t)_commands),pre_$(t)_$(c) post_$(t)_$(c)))
# Implicitly delegate other targets to debian/dhmk_% ones. Hence the top
# targets (build, configure, install ...) are still cancellable.
%: debian/dhmk_%
@echo "SUCCESS making standard target `$@'."
.SECONDEXPANSION:
# Specify relationships (depends/prerequisites) and export DHMK_TARGET
# environment variable for each top target
$(foreach t,$(dhmk_standard_targets),debian/dhmk_$(t)): debian/dhmk_%: $$(foreach d,$$(dhmk_%_depends),debian/dhmk_$$d)
# Generate command chains for the standard targets
$(foreach t,$(dhmk_standard_targets),dhmk_run_$(t)_commands): dhmk_run_%_commands: pre_% $$(foreach c,$$(dhmk_%_commands),pre_%_$$(c) post_%_$$(c)) post_%
endif # ifeq (dhmk_override_info_mode,yes)
endif # ifndef dhmk_this_makefile
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