contrib/bmake/mk/meta.subdir.mk

   1 # $Id: meta.subdir.mk,v 1.10 2012/07/03 05:26:46 sjg Exp $
   2
   3 #
   4 #       @(#) Copyright (c) 2010, Simon J. Gerraty
   5 #
   6 #       This file is provided in the hope that it will
   7 #       be of use.  There is absolutely NO WARRANTY.
   8 #       Permission to copy, redistribute or otherwise
   9 #       use this file is hereby granted provided that
  10 #       the above copyright notice and this notice are
  11 #       left intact.
  12 #
  13 #       Please send copies of changes and bug-fixes to:
  14 #       sjg@crufty.net
  15 #
  16
  17 .if !defined(NO_SUBDIR) && !empty(SUBDIR)
  18 .if make(destroy*) || make(clean*)
  19 .MAKE.MODE = compat
  20 .if !commands(destroy)
  21 .-include <bsd.obj.mk>
  22 .endif
  23 .elif ${.MAKE.LEVEL} == 0
  24
  25 .MAIN: all
  26
  27 .if !exists(${.CURDIR}/${.MAKE.DEPENDFILE:T}) || make(gendirdeps)
  28 # start with this
  29 DIRDEPS = ${SUBDIR:N.WAIT:O:u:@d@${RELDIR}/$d@}
  30
  31 .if make(gendirdeps)
  32 .include <meta.autodep.mk>
  33 .else
  34 # this is the cunning bit
  35 # actually it is probably a bit risky
  36 # since we may pickup subdirs which are not relevant
  37 # the alternative is a walk through the tree though
  38 # which is difficult without a sub-make.
  39
  40 .if defined(BOOTSTRAP_DEPENDFILES)
  41 _find_name = ${.MAKE.MAKEFILE_PREFERENCE:@m@-o -name $m@:S,^-o,,1}
  42 DIRDEPS = ${_subdeps:H:O:u:@d@${RELDIR}/$d@}
  43 .elif ${.MAKE.DEPENDFILE:E} == ${MACHINE} && defined(ALL_MACHINES)
  44 # we want to find Makefile.depend.* ie for all machines
  45 # and turn the dirs into dir.<machine>
  46 _find_name = -name '${.MAKE.DEPENDFILE:T:R}*'
  47 DIRDEPS = ${_subdeps:O:u:${NIgnoreFiles}:@d@${RELDIR}/${d:H}.${d:E}@:S,.${MACHINE}$,,:S,.depend$,,}
  48 .else
  49 # much simpler
  50 _find_name = -name ${.MAKE.DEPENDFILE:T}
  51 .if ${.MAKE.DEPENDFILE:E} == ${MACHINE}
  52 _find_name += -o -name ${.MAKE.DEPENDFILE:T:R}
  53 .endif
  54 DIRDEPS = ${_subdeps:H:O:u:@d@${RELDIR}/$d@}
  55 .endif
  56
  57 _subdeps != cd ${.CURDIR} && \
  58         find ${SUBDIR:N.WAIT} -type f \( ${_find_name} \) -print -o \
  59         -name .svn -prune 2> /dev/null; echo
  60
  61 .if empty(_subdeps)
  62 DIRDEPS =
  63 .else
  64 # clean up if needed
  65 DIRDEPS := ${DIRDEPS:S,^./,,:S,/./,/,g:${SUBDIREPS_FILTER:Uu}}
  66 .endif
  67 # we just dealt with it, if we leave it defined,
  68 # dirdeps.mk will compute some interesting combinations.
  69 .undef ALL_MACHINES
  70
  71 DEP_RELDIR = ${RELDIR}
  72 .include <dirdeps.mk>
  73 .endif
  74 .endif
  75 .else
  76 all: .PHONY
  77 .endif
  78
  79 .endif