src/tiff/SConstruct

   1 # $Id: SConstruct,v 1.2 2006/03/23 14:54:00 dron Exp $
   2
   3 # Tag Image File Format (TIFF) Software
   4 #
   5 # Copyright (C) 2005, Andrey Kiselev <dron@ak4719.spb.edu>
   6 #
   7 # Permission to use, copy, modify, distribute, and sell this software and
   8 # its documentation for any purpose is hereby granted without fee, provided
   9 # that (i) the above copyright notices and this permission notice appear in
  10 # all copies of the software and related documentation, and (ii) the names of
  11 # Sam Leffler and Silicon Graphics may not be used in any advertising or
  12 # publicity relating to the software without the specific, prior written
  13 # permission of Sam Leffler and Silicon Graphics.
  14 #
  15 # THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
  16 # EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  17 # WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  18 #
  19 # IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
  20 # ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
  21 # OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  22 # WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
  23 # LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  24 # OF THIS SOFTWARE.
  25
  26 # This file contains rules to build software with the SCons tool
  27 # (see the http://www.scons.org/ for details on SCons).
  28
  29 import os
  30
  31 env = Environment()
  32
  33 # Read the user supplied options
  34 opts = Options('libtiff.conf')
  35 opts.Add(PathOption('PREFIX', \
  36     'install architecture-independent files in this directory', \
  37     '/usr/local', PathOption.PathIsDirCreate))
  38 opts.Add(BoolOption('ccitt', \
  39     'enable support for CCITT Group 3 & 4 algorithms', \
  40     'yes'))
  41 opts.Add(BoolOption('packbits', \
  42     'enable support for Macintosh PackBits algorithm', \
  43     'yes'))
  44 opts.Add(BoolOption('lzw', \
  45     'enable support for LZW algorithm', \
  46     'yes'))
  47 opts.Add(BoolOption('thunder', \
  48     'enable support for ThunderScan 4-bit RLE algorithm', \
  49     'yes'))
  50 opts.Add(BoolOption('next', \
  51     'enable support for NeXT 2-bit RLE algorithm', \
  52     'yes'))
  53 opts.Add(BoolOption('logluv', \
  54     'enable support for LogLuv high dynamic range encoding', \
  55     'yes'))
  56 opts.Add(BoolOption('strip_chopping', \
  57     'support for strip chopping (whether or not to convert single-strip uncompressed images to mutiple strips of ~8Kb to reduce memory usage)', \
  58     'yes'))
  59 opts.Add(BoolOption('extrasample_as_alpha', \
  60     'the RGBA interface will treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many packages produce RGBA files but don\'t mark the alpha properly', \
  61     'yes'))
  62 opts.Add(BoolOption('check_ycbcr_subsampling', \
  63     'disable picking up YCbCr subsampling info from the JPEG data stream to support files lacking the tag', \
  64     'yes'))
  65 opts.Update(env)
  66 opts.Save('libtiff.conf', env)
  67 Help(opts.GenerateHelpText(env))
  68
  69 # Here are our installation paths:
  70 idir_prefix = '$PREFIX'
  71 idir_lib = '$PREFIX/lib'
  72 idir_bin = '$PREFIX/bin'
  73 idir_inc = '$PREFIX/include'
  74 idir_doc = '$PREFIX/doc'
  75 Export([ 'env', 'idir_prefix', 'idir_lib', 'idir_bin', 'idir_inc', 'idir_doc' ])
  76
  77 # Now proceed to system feature checks
  78 target_cpu, target_vendor, target_kernel, target_os = \
  79     os.popen("./config.guess").readlines()[0].split("-")
  80
  81 def Define(context, key, have):
  82     import SCons.Conftest
  83     SCons.Conftest._Have(context, key, have)
  84
  85 def CheckCustomOption(context, name):
  86     context.Message('Checking is the ' + name + ' option set... ')
  87     ret = env[name]
  88     Define(context, name + '_SUPPORT', ret)
  89     context.Result(ret)
  90     return ret
  91
  92 def CheckFillorderOption(context):
  93     context.Message('Checking for the native cpu bit order... ')
  94     if target_cpu[0] == 'i' and target_cpu[2:] == '86':
  95         Define(context, 'HOST_FILLORDER', 'FILLORDER_LSB2MSB')
  96         context.Result('lsb2msb')
  97     else:
  98         Define(context, 'HOST_FILLORDER', 'FILLORDER_MSB2LSB')
  99         context.Result('msb2lsb')
 100     return 1
 101
 102 def CheckIEEEFPOption(context):
 103     context.Message('Checking for the IEEE floating point format... ')
 104     Define(context, 'HAVE_IEEEFP', 1)
 105     context.Result(1)
 106     return 1
 107
 108 def CheckOtherOption(context, name):
 109     context.Message('Checking is the ' + name + ' option set... ')
 110     ret = env[name]
 111     Define(context, 'HAVE_' + name, ret)
 112     context.Result(ret)
 113     return ret
 114
 115 custom_tests = { \
 116     'CheckCustomOption' : CheckCustomOption, \
 117     'CheckFillorderOption' : CheckFillorderOption, \
 118     'CheckIEEEFPOption' : CheckIEEEFPOption, \
 119     'CheckOtherOption' : CheckOtherOption \
 120     }
 121 conf = Configure(env, custom_tests = custom_tests, \
 122     config_h = 'libtiff/tif_config.h')
 123
 124 # Check for standard library
 125 conf.CheckLib('c')
 126 if target_os != 'cygwin' \
 127     and target_os != 'mingw32' \
 128     and target_os != 'beos' \
 129     and target_os != 'darwin':
 130     conf.CheckLib('m')
 131
 132 # Check for system headers
 133 conf.CheckCHeader('assert.h')
 134 conf.CheckCHeader('fcntl.h')
 135 conf.CheckCHeader('limits.h')
 136 conf.CheckCHeader('malloc.h')
 137 conf.CheckCHeader('search.h')
 138 conf.CheckCHeader('sys/time.h')
 139 conf.CheckCHeader('unistd.h')
 140
 141 # Check for standard library functions
 142 conf.CheckFunc('floor')
 143 conf.CheckFunc('isascii')
 144 conf.CheckFunc('memmove')
 145 conf.CheckFunc('memset')
 146 conf.CheckFunc('mmap')
 147 conf.CheckFunc('pow')
 148 conf.CheckFunc('sqrt')
 149 conf.CheckFunc('strchr')
 150 conf.CheckFunc('strrchr')
 151 conf.CheckFunc('strstr')
 152 conf.CheckFunc('strtol')
 153
 154 conf.CheckFillorderOption()
 155 conf.CheckIEEEFPOption()
 156 conf.CheckCustomOption('ccitt')
 157 conf.CheckCustomOption('packbits')
 158 conf.CheckCustomOption('lzw')
 159 conf.CheckCustomOption('thunder')
 160 conf.CheckCustomOption('next')
 161 conf.CheckCustomOption('logluv')
 162 conf.CheckOtherOption('strip_chopping')
 163 conf.CheckOtherOption('extrasample_as_alpha')
 164 conf.CheckOtherOption('check_ycbcr_subsampling')
 165
 166 env = conf.Finish()
 167
 168 # Ok, now go to build files in the subdirectories
 169 SConscript(dirs = [ 'libtiff' ], name = 'SConstruct')