include/subdir.mk

   1 #
   2 # Copyright (C) 2007 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7
   8 SUBTARGETS:=clean download prepare compile install update refresh prereq
   9
  10 subtarget-default = $(filter-out ., \
  11         $(if $($(1)/builddirs-$(2)),$($(1)/builddirs-$(2)), \
  12         $(if $($(1)/builddirs-default),$($(1)/builddirs-default), \
  13         $($(1)/builddirs))))
  14
  15 define subtarget
  16   $(call warn_eval,$(1),t,T,$(1)/$(2): $($(1)/) $(foreach bd,$(call subtarget-default,$(1),$(2)),$(1)/$(bd)/$(2)))
  17
  18 endef
  19
  20 # Parameters: <subdir>
  21 define subdir
  22   $(call warn,$(1),d,D $(1))
  23   $(foreach bd,$($(1)/builddirs),
  24     $(call warn,$(1),d,BD $(1)/$(bd))
  25     $(foreach target,$(SUBTARGETS),
  26       $(call warn_eval,$(1)/$(bd),t,T,$(1)/$(bd)/$(target): $($(1)/$(bd)/$(target)) $(call $(1)//$(target),$(1)/$(bd)))
  27                 @+$$(MAKE) -j1 -C $(1)/$(bd) $(target)
  28
  29       # legacy targets
  30       $(call warn_eval,$(1)/$(bd),l,T,$(1)/$(bd)-$(target): $(1)/$(bd)/$(target))
  31         )
  32   )
  33   $(foreach target,$(SUBTARGETS),$(call subtarget,$(1),$(target)))
  34 endef
  35
  36 # Parameters: <subdir> <name> <target>
  37 define stampfile
  38   $(1)/stamp-$(3):=$(STAGING_DIR)/stampfiles/.$(2)_$(3)
  39   $(call rdep,$(1),$$($(1)/stamp-$(3)),)
  40
  41   $$($(1)/stamp-$(3)):
  42         @+$(MAKE) $(1)/$(3)
  43         @mkdir -p $$$$(dirname $$($(1)/stamp-$(3)))
  44         @touch $$($(1)/stamp-$(3))
  45   .PRECIOUS: $$($(1)/stamp-$(3)) # work around a make bug
  46
  47   $(1)//clean:=$(1)/stamp-$(3)/clean
  48   $(1)/stamp-$(3)/clean: FORCE
  49         @rm -f $$($(1)/stamp-$(3))
  50
  51 endef