config-scripts/cups-image.m4

   1 dnl
   2 dnl "$Id: cups-image.m4 6649 2007-07-11 21:46:42Z mike $"
   3 dnl
   4 dnl   Image library/filter stuff for CUPS.
   5 dnl
   6 dnl   Copyright 2007-2011 by Apple Inc.
   7 dnl   Copyright 1997-2006 by Easy Software Products, all rights reserved.
   8 dnl
   9 dnl   These coded instructions, statements, and computer programs are the
  10 dnl   property of Apple Inc. and are protected by Federal copyright
  11 dnl   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
  12 dnl   which should have been included with this file.  If this file is
  13 dnl   file is missing or damaged, see the license at "http://www.cups.org/".
  14 dnl
  15
  16 dnl See if we want the image filters included at all...
  17 AC_ARG_ENABLE(image, [  --enable-image          always build the image filters])
  18
  19 DEFAULT_IMAGEFILTERS="#"
  20 IMGFILTERS=""
  21 if test "x$enable_image" != xno; then
  22         AC_MSG_CHECKING(whether to build image filters)
  23         if test "x$enable_image" = xyes -o $uname != Darwin; then
  24                 IMGFILTERS="imagetops imagetoraster"
  25                 DEFAULT_IMAGEFILTERS=""
  26                 AC_MSG_RESULT(yes)
  27         else
  28                 AC_MSG_RESULT(no)
  29         fi
  30 fi
  31
  32 AC_SUBST(DEFAULT_IMAGEFILTERS)
  33 AC_SUBST(IMGFILTERS)
  34
  35 dnl Check for image libraries...
  36 AC_ARG_ENABLE(jpeg, [  --disable-jpeg          disable JPEG support])
  37 AC_ARG_ENABLE(png, [  --disable-png           disable PNG support])
  38 AC_ARG_ENABLE(tiff, [  --disable-tiff          disable TIFF support])
  39
  40 LIBJPEG=""
  41 LIBPNG=""
  42 LIBTIFF=""
  43 LIBZ=""
  44
  45 AC_SUBST(LIBJPEG)
  46 AC_SUBST(LIBPNG)
  47 AC_SUBST(LIBTIFF)
  48 AC_SUBST(LIBZ)
  49
  50 dnl Image libraries use math library functions...
  51 AC_SEARCH_LIBS(pow, m)
  52
  53 dnl Save the current libraries since we don't want the image libraries
  54 dnl included with every program...
  55 SAVELIBS="$LIBS"
  56
  57 dnl JPEG library...
  58 if test x$enable_jpeg != xno; then
  59     AC_CHECK_HEADER(jpeglib.h,
  60         AC_CHECK_LIB(jpeg, jpeg_destroy_decompress,
  61             AC_DEFINE(HAVE_LIBJPEG)
  62             LIBJPEG="-ljpeg"
  63             LIBS="$LIBS -ljpeg"))
  64 else
  65     AC_MSG_NOTICE([JPEG support disabled with --disable-jpeg.])
  66 fi
  67
  68 dnl ZLIB library...
  69 AC_CHECK_HEADER(zlib.h,
  70     AC_CHECK_LIB(z, gzgets,
  71         AC_DEFINE(HAVE_LIBZ)
  72         LIBZ="-lz"
  73         LIBS="$LIBS -lz"))
  74
  75 dnl PNG library...
  76 if test x$enable_png != xno; then
  77     AC_CHECK_HEADER(png.h,
  78         AC_CHECK_LIB(png, png_create_read_struct,
  79             AC_DEFINE(HAVE_LIBPNG)
  80             LIBPNG="-lpng"))
  81 else
  82     AC_MSG_NOTICE([PNG support disabled with --disable-png.])
  83 fi
  84
  85 dnl TIFF library...
  86 if test x$enable_tiff != xno; then
  87     AC_CHECK_HEADER(tiff.h,
  88         AC_CHECK_LIB(tiff, TIFFReadScanline,
  89         AC_DEFINE(HAVE_LIBTIFF)
  90         LIBTIFF="-ltiff"))
  91 else
  92     AC_MSG_NOTICE([TIFF support disabled with --disable-tiff.])
  93 fi
  94
  95 dnl Restore original LIBS settings...
  96 LIBS="$SAVELIBS"
  97
  98 EXPORT_LIBJPEG="$LIBJPEG"
  99 EXPORT_LIBPNG="$LIBPNG"
 100 EXPORT_LIBTIFF="$LIBTIFF"
 101 EXPORT_LIBZ="$LIBZ"
 102
 103 AC_SUBST(EXPORT_LIBJPEG)
 104 AC_SUBST(EXPORT_LIBPNG)
 105 AC_SUBST(EXPORT_LIBTIFF)
 106 AC_SUBST(EXPORT_LIBZ)
 107
 108 AC_CHECK_HEADER(stdlib.h,AC_DEFINE(HAVE_STDLIB_H))
 109
 110 dnl
 111 dnl End of "$Id: cups-image.m4 6649 2007-07-11 21:46:42Z mike $".
 112 dnl