share/mk/obj.mk

   1 # $Id: obj.mk,v 1.15 2012/11/11 22:37:02 sjg Exp $
   2 #
   3 #       @(#) Copyright (c) 1999-2010, Simon J. Gerraty
   4 #
   5 #       This file is provided in the hope that it will
   6 #       be of use.  There is absolutely NO WARRANTY.
   7 #       Permission to copy, redistribute or otherwise
   8 #       use this file is hereby granted provided that
   9 #       the above copyright notice and this notice are
  10 #       left intact.
  11 #
  12 #       Please send copies of changes and bug-fixes to:
  13 #       sjg@crufty.net
  14 #
  15
  16 .if !target(__${.PARSEFILE:S,bsd.,,}__)
  17 __${.PARSEFILE:S,bsd.,,}__:
  18
  19 .if defined(NOOBJ)
  20 obj:
  21 .else
  22
  23 # this has to match how make behaves
  24 .if defined(MAKEOBJDIRPREFIX) || defined(MAKEOBJDIR)
  25 .if defined(MAKEOBJDIRPREFIX)
  26 __objdir:=      ${MAKEOBJDIRPREFIX}${.CURDIR}
  27 .else
  28 __objdir:=      ${MAKEOBJDIR}
  29 .endif
  30 .else
  31 __objdir=       obj
  32 .endif
  33
  34 _SUBDIRUSE:
  35
  36 obj! _SUBDIRUSE
  37         @cd ${.CURDIR}; \
  38         here=`pwd`; \
  39         if [ -n "${UNLEASHED_OBJ}" ]; then \
  40                 dest="${UNLEASHED_OBJ}$$here"; \
  41                 echo "$$here/${__objdir} -> $$dest"; \
  42                 if [ ! -L ${__objdir} -o "`readlink ${__objdir}`" != "$$dest" ]; then \
  43                         [ -e ${__objdir} ] && rm -rf ${__objdir}; \
  44                         ln -sf $$dest ${__objdir}; \
  45                 fi; \
  46                 mkdir -p $$dest; \
  47         else \
  48                 dest=$$here/${__objdir} ; \
  49                 if [ ! -d ${__objdir} ]; then \
  50                         echo "making $$dest"; \
  51                         mkdir -p $$dest; \
  52                 fi; \
  53         fi
  54 .endif
  55 .endif