include/depends.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 # define a dependency on a subtree
   8 # parameters:
   9 #       1: directory
  10 #       2: directory dependency
  11 #       3: tempfile for file listings
  12 #       4: find options
  13
  14 DEP_FINDPARAMS := -type f -not -name ".*" -and -not -path "*.svn*" -type f -not -name ".*" -and -not -path "*.svn*" -and -not -path "*:*" -and -not -path "*!*" -and -not -path "* *" -and -not -path "*\\\#*"
  15 define rdep
  16   $(foreach file,$(shell find $(1) $(DEP_FINDPARAMS) $(4)),
  17     $(2): $(file)
  18     $(file): ;
  19   )
  20
  21   ifneq ($(3),)
  22     ifneq ($$(shell find $(1) $(DEP_FINDPARAMS) $(4) 2>/dev/null | md5s),$(if $(3),$(shell cat $(3) || touch $(3) 2>/dev/null)))
  23       $(2): $(3)
  24     endif
  25
  26   endif
  27
  28   $(3): FORCE
  29           @-find $(1) $(DEP_FINDPARAMS) $(4) 2>/dev/null | md5s > $$@
  30   .PRECIOUS: $(3)
  31 endef