mk/jpeg.buildlink3.mk

   1 # $NetBSD$
   2 #
   3 # This Makefile fragment is meant to be included by packages that
   4 # require a libjpeg implementation.  jpeg.buildlink3.mk will:
   5 #
   6 #       * set JPEGBASE to the base directory of the libjpeg files;
   7 #       * set JPEG_TYPE to the libjpeg implementation used.
   8 #
   9 # There are three variables that can be used to tweak the selection of
  10 # the libjpeg implementation:
  11 #
  12 # JPEG_DEFAULT is a user-settable variable whose value is the default
  13 #       libjpeg implementation to use.
  14 #
  15 # JPEG_ACCEPTED is a package-settable list of libjpeg implementations
  16 #       that may be used by the package.
  17 #
  18
  19 MK_JPEG_BUILDLINK3_MK:= ${MK_JPEG_BUILDLINK3_MK}+
  20
  21 .include "bsd.fast.prefs.mk"
  22
  23 .if !empty(MK_JPEG_BUILDLINK3_MK:M+)
  24
  25 # This is an exhaustive list of all of the libjpeg implementations
  26 # that may be used with jpeg.buildlink3.mk, in order of precedence.
  27 #
  28 _JPEG_PKGS?=    jpeg libjpeg-turbo
  29
  30 JPEG_DEFAULT?=  jpeg
  31 JPEG_ACCEPTED?= ${_JPEG_PKGS}
  32
  33 _JPEG_DEFAULT=  ${JPEG_DEFAULT}
  34 _JPEG_ACCEPTED= ${JPEG_ACCEPTED}
  35
  36 _JPEG_TYPE?=    ${_JPEG_DEFAULT}
  37
  38 .  if !empty(_JPEG_ACCEPTED:M${_JPEG_TYPE})
  39 JPEG_TYPE=      ${_JPEG_TYPE}
  40 .  else
  41 JPEG_TYPE=      none
  42 .  endif
  43
  44 BUILD_DEFS+=            JPEG_DEFAULT
  45 BUILD_DEFS_EFFECTS+=    JPEGBASE JPEG_TYPE
  46
  47 .if ${JPEG_TYPE} == "none"
  48 PKG_FAIL_REASON=        \
  49         "${_JPEG_TYPE} is not an acceptable libjpeg type for ${PKGNAME}."
  50 .elif ${JPEG_TYPE} == "jpeg"
  51 .  include "../../graphics/jpeg/buildlink3.mk"
  52 .elif ${JPEG_TYPE} == "libjpeg-turbo"
  53 .  include "../../graphics/libjpeg-turbo/buildlink3.mk"
  54 .endif
  55
  56 JPEGBASE=       ${BUILDLINK_PREFIX.${JPEG_TYPE}}
  57
  58 .endif  # MK_JPEG_BUILDLINK3_MK