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 define subtarget
  11   $(call warn_eval,$(1),t,T,$(1)/$(2): $($(1)/) $(foreach bd,$(if $($(1)/builddirs-$(2)),$(filter-out .,$($(1)/builddirs-$(2))),$($(1)/builddirs)),$(1)/$(bd)/$(2)))
  12
  13 endef
  14
  15 # Parameters: <subdir>
  16 define subdir
  17   $(call warn,$(1),d,D $(1))
  18   $(foreach bd,$($(1)/builddirs),
  19     $(call warn,$(1),d,BD $(1)/$(bd))
  20     $(foreach target,$(SUBTARGETS),
  21       $(call warn_eval,$(1)/$(bd),t,T,$(1)/$(bd)/$(target): $($(1)/$(bd)/$(target)) $(call $(1)//$(target),$(1)/$(bd)))
  22                 @+$$(MAKE) -j1 -C $(1)/$(bd) $(target)
  23
  24       # legacy targets
  25       $(call warn_eval,$(1)/$(bd),l,T,$(1)/$(bd)-$(target): $(1)/$(bd)/$(target))
  26         )
  27   )
  28   $(foreach target,$(SUBTARGETS),$(call subtarget,$(1),$(target)))
  29 endef
  30
  31 # Parameters: <subdir> <name> <target>
  32 define stampfile
  33   $(1)/stamp-$(3):=$(STAGING_DIR)/stampfiles/.$(2)_$(3)
  34   $(call rdep,$(1),$$($(1)/stamp-$(3)),)
  35
  36   $$($(1)/stamp-$(3)):
  37         @+$(MAKE) $(1)/$(3)
  38         @mkdir -p $$$$(dirname $$($(1)/stamp-$(3)))
  39         @touch $$($(1)/stamp-$(3))
  40   .PRECIOUS: $$($(1)/stamp-$(3)) # work around a make bug
  41
  42   $(1)//clean:=$(1)/stamp-$(3)/clean
  43   $(1)/stamp-$(3)/clean: FORCE
  44         @rm -f $$($(1)/stamp-$(3))
  45
  46 endef