openwrt/include/subdir.mk

64 lines
1.5 KiB
Makefile

# debug flags:
#
# d: show subdirectory tree
# t: show added targets
# l: show legacy targets
ifeq ($(DEBUG),all)
build_debug:=dt
else
build_debug:=$(DEBUG)
endif
define debug
$$(findstring $(2),$$(if $$(DEBUG_DIR),$$(if $$(filter $$(DEBUG_DIR)%,$(1)),$(build_debug)),$(build_debug)))
endef
define warn
$$(if $(call debug,$(1),$(2)),$$(warning $(3)))
endef
define warn_eval
$(call warn,$(1),$(2),$(3) $(4))
$(4)
endef
dep/compile=$(1)/prepare
dep/install=$(1)/compile
SUBTARGETS:=clean download prepare compile install update refresh prereq
# Parameters: <subdir>
define subdir
$(call warn,$(1),d,D $(1))
$(foreach bd,$($(1)/builddirs),
$(call warn,$(1),d,BD $(1)/$(bd))
$(foreach target,$(SUBTARGETS),
$(call warn_eval,$(1)/$(bd),t,T,$(1)/$(bd)/$(target): $(call dep/$(target),$(1)/$(bd)) $($(1)/$(bd)/$(target)) $($(1)//$(target)))
@$$(MAKE) -j1 -C $(1)/$(bd) $(target)
# legacy targets
$(call warn_eval,$(1)/$(bd),l,T,$(1)/$(bd)-$(target): $(1)/$(bd)/$(target))
)
)
$(foreach target,$(SUBTARGETS),
$(call warn_eval,$(1),t,T,$(1)/$(target): $($(1)/) $(foreach bd,$($(1)/builddirs),$(1)/$(bd)/$(target)))
)
endef
# Parameters: <subdir> <name>
define stampfile
$(1)/stamp:=$(STAGING_DIR)/stampfiles/.$(2)_installed
$(call rdep,$(1),$$($(1)/stamp))
$$($(1)/stamp):
@$(MAKE) $(1)/install
@mkdir -p $$$$(dirname $$($(1)/stamp))
@touch $$($(1)/stamp)
.PRECIOUS: $$($(1)/stamp) # work around a make bug
$(1)//clean:=$(1)/stamp/clean
$(1)/stamp/clean: FORCE
@rm -f $$($(1)/stamp)
endef