share/mk/bsd.patch.mk

   1 # $DragonFly: src/share/mk/bsd.patch.mk,v 1.3 2006/09/13 19:33:14 corecode Exp $
   2 #
   3 # The include file <bsd.patch.mk> handles patching of files and sources.
   4 #
   5 # It is advisable to include this file before a rule which deduces ${OBJS}
   6 # from ${SRCS}.
   7 #
   8 # +++ variables +++
   9 #
  10 # SRCS          List of source files, especially patches (*.patch)
  11 #
  12 # CONTRIBDIR    Location of source files to which the patch files are relative
  13 #
  14 # Patch files are added to ${SRCS} and follow the following patterns:
  15 #   *.no_obj.patch      The patched source file won't be added to ${SRCS}.
  16 #   *.h.patch           The patched source file is a header and will be
  17 #                       added to ${SRCS}.
  18 #   *.patch             The patched source file will be compiled to an object
  19 #                       and will be added to ${SRCS}.
  20 #
  21 # All commas contained in the patch filename will be replaced to slashes to
  22 # form a path in a subdir.
  23 #
  24 # Example:
  25 #
  26 # CONTRIBDIR=   ${.CURDIR}/../../contrib/foo-1.4/src
  27 # SRCS+=        foomain.c.patch include,fooconf.h.patch
  28 #
  29 # This will patch ${CONTRIBDIR}/foomain.c with foomain.c.patch and add
  30 # the patched foomain.c to ${SRCS}.
  31 # The file ${CONTRIBDIR}/include/fooconf.h will be patched with
  32 # include,fooconf.h.patch;  the patched file will be created in
  33 # ${.OBJDIR}/include/fooconf.h and will be added to ${SRCS}.
  34 #
  35
  36 _PATCHFILE: .USE
  37         mkdir -p ${.TARGET:H}
  38         patch -o ${.TARGET} -i ${.ALLSRC:M*.patch} ${.ALLSRC:N*.patch}
  39
  40 .if defined(SRCS)
  41 CLEANFILES?=
  42
  43 .for _PSRC in ${SRCS:M*.no_obj.patch}
  44 .for _PC in ${_PSRC:T:C/(\.no_obj)?\.patch$//:S|,|/|g}
  45
  46 ${_PC}: _PATCHFILE ${CONTRIBDIR}/${_PC} ${_PSRC}
  47
  48 beforedepend: ${PC_}
  49
  50 SRCS:=  ${SRCS:N${_PSRC}}
  51 CLEANFILES:=    ${CLEANFILES} ${_PC}
  52 .endfor
  53 .endfor
  54
  55 .for _PSRC in ${SRCS:N*.no_obj.patch:M*.patch}
  56 .for _PC in ${_PSRC:T:C/(\.no_obj)?\.patch$//:S|,|/|g}
  57
  58 ${_PC}: _PATCHFILE ${CONTRIBDIR}/${_PC} ${_PSRC}
  59
  60 SRCS:=  ${SRCS:N${_PC}:S|${_PSRC}|${_PC}|}
  61 CLEANFILES:=    ${CLEANFILES} ${_PC}
  62 .endfor
  63 .endfor
  64 .endif