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                 $(if $(findstring $(bd),$($(1)/builddirs-parallel)),$$(SUBMAKE),$$(_SINGLE)$$(SUBMAKE) -j1) \
  32                         -C $(1)/$(bd) $(target) $(if $(findstring $(bd),$($(1)/builddirs-ignore-$(target))), || $(call MESSAGE,   ERROR: $(1)/$(bd) failed to build.))
  33         $$(if $(call debug,$(1)/$(bd),v),,.SILENT: $(1)/$(bd)/$(target))
  34
  35       # legacy targets
  36       $(call warn_eval,$(1)/$(bd),l,T,$(1)/$(bd)-$(target): $(1)/$(bd)/$(target))
  37       # aliases
  38       $(if $(call diralias,$(bd)),$(call warn_eval,$(1)/$(bd),l,T,$(1)/$(call diralias,$(bd))/$(target): $(1)/$(bd)/$(target)))
  39         )
  40   )
  41   $(foreach target,$(SUBTARGETS),$(call subtarget,$(1),$(target)))
  42 endef
  43
  44 # Parameters: <subdir> <name> <target> <depends>
  45 define stampfile
  46   $(1)/stamp-$(3):=$(STAGING_DIR)/stamp/.$(2)_$(3)
  47   $$($(1)/stamp-$(3)): $(TMP_DIR)/.build $(4)
  48         @+$(SCRIPT_DIR)/timestamp.pl -n $$($(1)/stamp-$(3)) $(1) $(4) || \
  49                 $(MAKE) $$($(1)/flags-$(3)) $(1)/$(3)
  50         @mkdir -p $$$$(dirname $$($(1)/stamp-$(3)))
  51         @touch $$($(1)/stamp-$(3))
  52
  53   $$(if $(call debug,$(1),v),,.SILENT: $$($(1)/stamp-$(3)))
  54
  55   .PRECIOUS: $$($(1)/stamp-$(3)) # work around a make bug
  56
  57   $(1)//clean:=$(1)/stamp-$(3)/clean
  58   $(1)/stamp-$(3)/clean: FORCE
  59         @rm -f $$($(1)/stamp-$(3))
  60
  61 endef