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)/$(2)))
  17
  18 endef
  19
  20
  21 lastdir=$(word $(words $(subst /, ,$(1))),$(subst /, ,$(1)))
  22 diralias=$(if $(findstring $(1),$(call lastdir,$(1))),,$(call lastdir,$(1)))
  23
  24 # Parameters: <subdir>
  25 define subdir
  26   $(call warn,$(1),d,D $(1))
  27   $(foreach bd,$($(1)/builddirs),
  28     $(call warn,$(1),d,BD $(1)/$(bd))
  29     $(foreach target,$(SUBTARGETS),
  30       $(call warn_eval,$(1)/$(bd),t,T,$(1)/$(bd)/$(target): $(if $(QUILT),,$($(1)/$(bd)/$(target)) $(call $(1)//$(target),$(1)/$(bd))))
  31                 +$$(MAKE) -j1 -C $(1)/$(bd) $(target)
  32         $$(if $(call debug,$(1)/$(bd),v),,.SILENT: $(1)/$(bd)/$(target))
  33
  34       # legacy targets
  35       $(call warn_eval,$(1)/$(bd),l,T,$(1)/$(bd)-$(target): $(1)/$(bd)/$(target))
  36       # aliases
  37       $(if $(call diralias,$(bd)),$(call warn_eval,$(1)/$(bd),l,T,$(1)/$(call diralias,$(bd))/$(target): $(1)/$(bd)/$(target)))
  38         )
  39   )
  40   $(foreach target,$(SUBTARGETS),$(call subtarget,$(1),$(target)))
  41 endef
  42
  43 # Parameters: <subdir> <name> <target> <depends>
  44 define stampfile
  45   $(1)/stamp-$(3):=$(STAGING_DIR)/stamp/.$(2)_$(3)
  46   $$($(1)/stamp-$(3)): $(TMP_DIR)/.build $(4)
  47         @+$(SCRIPT_DIR)/timestamp.pl -n $$($(1)/stamp-$(3)) $(1) $(4) || \
  48                 $(MAKE) $$($(1)/flags-$(3)) $(1)/$(3)
  49         @mkdir -p $$$$(dirname $$($(1)/stamp-$(3)))
  50         @touch $$($(1)/stamp-$(3))
  51
  52   $$(if $(call debug,$(1),v),,.SILENT: $$($(1)/stamp-$(3)))
  53
  54   .PRECIOUS: $$($(1)/stamp-$(3)) # work around a make bug
  55
  56   $(1)//clean:=$(1)/stamp-$(3)/clean
  57   $(1)/stamp-$(3)/clean: FORCE
  58         @rm -f $$($(1)/stamp-$(3))
  59
  60 endef