share/mk/bsd.subdir.mk

   1 #       $NetBSD: bsd.subdir.mk,v 1.52 2010/05/26 00:48:15 uwe Exp $
   2 #       @(#)bsd.subdir.mk       8.1 (Berkeley) 6/8/93
   3
   4 .include <bsd.init.mk>
   5
   6 .if !defined(NOSUBDIR)                                  # {
   7
   8 .for dir in ${SUBDIR}
   9 .if "${dir}" == ".WAIT"
  10 # Don't play with .WAIT
  11 __REALSUBDIR+=${dir}
  12 .else
  13 .if "${dir:H}" != ""
  14 # It is a relative path; make it absolute so exists can't search the path.
  15 .if exists(${.CURDIR}/${dir}.${MACHINE})
  16 __REALSUBDIR+=${dir}.${MACHINE}
  17 .else
  18 __REALSUBDIR+=${dir}
  19 .endif
  20 .else
  21 # It is an absolute path; leave it alone
  22 .if exists(${dir}.${MACHINE})
  23 __REALSUBDIR+=${dir}.${MACHINE}
  24 .else
  25 __REALSUBDIR+=${dir}
  26 .endif
  27 .endif
  28 .endif
  29 .endfor
  30
  31 __recurse: .USE
  32         @${MAKEDIRTARGET} ${.TARGET:C/^[^-]*-//} ${.TARGET:C/-.*$//}
  33
  34 .if make(cleandir)
  35 __RECURSETARG=  ${TARGETS:Nclean}
  36 clean:
  37 .else
  38 __RECURSETARG=  ${TARGETS}
  39 .endif
  40
  41 # for obscure reasons, we can't do a simple .if ${dir} == ".WAIT"
  42 # but have to assign to __TARGDIR first.
  43 .for targ in ${__RECURSETARG}
  44 .for dir in ${__REALSUBDIR}
  45 __TARGDIR := ${dir}
  46 .if ${__TARGDIR} == ".WAIT"
  47 SUBDIR_${targ} += .WAIT
  48 .elif !commands(${targ}-${dir})
  49 ${targ}-${dir}: .PHONY .MAKE __recurse
  50 SUBDIR_${targ} += ${targ}-${dir}
  51 .endif
  52 .endfor
  53 subdir-${targ}: .PHONY ${SUBDIR_${targ}}
  54 ${targ}: subdir-${targ}
  55 .endfor
  56
  57 .endif  # ! NOSUBDIR                                    # }
  58
  59 ${TARGETS}:     # ensure existence