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 .include <init.mk>
  20
  21 ECHO_TRACE ?= echo
  22
  23 .if ${MK_OBJDIRS} == "no"
  24 obj:
  25 objlink:
  26 objwarn:
  27 .else
  28
  29 # this has to match how make behaves
  30 .if defined(MAKEOBJDIRPREFIX) || defined(MAKEOBJDIR)
  31 .if defined(MAKEOBJDIRPREFIX)
  32 __objdir:= ${MAKEOBJDIRPREFIX}${.CURDIR}
  33 .else
  34 __objdir:= ${MAKEOBJDIR}
  35 .endif
  36 .else
  37 __objdir= ${__objlink}
  38 .endif
  39
  40 .if defined(OBJMACHINE)
  41 __objlink=      obj.${MACHINE}
  42 .else
  43 __objlink=      obj
  44 .endif
  45
  46 .if ${MK_AUTO_OBJ} == "yes"
  47 .-include "auto.obj.mk"
  48 .endif
  49
  50 .NOPATH:        ${__objdir}
  51 .PHONY:         obj
  52
  53 obj: _SUBDIRUSE
  54         @if test ! -d ${__objdir}/.; then \
  55                 mkdir -p ${__objdir}; \
  56                 if test ! -d ${__objdir}; then \
  57                         mkdir ${__objdir}; exit 1; \
  58                 fi; \
  59                 ${ECHO_TRACE} "[Creating objdir ${__objdir}...]" >&2; \
  60         fi
  61
  62 .if !target(_SUBDIRUSE)
  63 # this just allows us to be included by ourselves
  64 _SUBDIRUSE:
  65 .endif
  66
  67 # so we can interact with freebsd makefiles
  68 .if !target(objwarn)
  69 objwarn:
  70 .if ${.OBJDIR} == ${.CURDIR}
  71         @echo "Warning Object directory is ${.CURDIR}"
  72 .elif ${.OBJDIR} != ${__objdir}
  73         @echo "Warning Object directory is ${.OBJDIR} vs. ${__objdir}"
  74 .endif
  75 .endif
  76
  77 .if !target(objlink)
  78 objlink:
  79 .if ${__objdir:T} != ${__objlink}
  80         @if test -d ${__objdir}/.; then \
  81                 ${RM} -f ${.CURDIR}/${__objlink}; \
  82                 ${LN} -s ${__objdir} ${.CURDIR}/${__objlink}; \
  83                 echo "${__objlink} -> ${__objdir}"; \
  84         else \
  85                 echo "No ${__objdir} to link to - do a 'make obj'"; \
  86         fi
  87 .endif
  88 .endif
  89 .endif
  90
  91 _CURDIR?= ${.CURDIR}
  92 _OBJDIR?= ${.OBJDIR}
  93
  94 .if !target(print-objdir)
  95 print-objdir:
  96         @echo ${_OBJDIR}
  97 .endif
  98
  99 .if !target(whereobj)
 100 whereobj:
 101         @echo ${_OBJDIR}
 102 .endif
 103
 104 .if !target(destroy)
 105 .if ${.CURDIR} != ${.OBJDIR}
 106 destroy:
 107         (cd ${_CURDIR} && rm -rf ${_OBJDIR})
 108 .else
 109 destroy:  clean
 110 .endif
 111 .endif
 112
 113 .endif