SConstruct

   1 #######################################################################
   2 # Top-level SConstruct
   3 #
   4 # For example, invoke scons as
   5 #
   6 #   scons build=debug llvm=yes machine=x86
   7 #
   8 # to set configuration variables. Or you can write those options to a file
   9 # named config.py:
  10 #
  11 #   # config.py
  12 #   build='debug'
  13 #   llvm=True
  14 #   machine='x86'
  15 #
  16 # Invoke
  17 #
  18 #   scons -h
  19 #
  20 # to get the full list of options. See scons manpage for more info.
  21 #
  22
  23 import os
  24 import os.path
  25 import sys
  26 import SCons.Util
  27
  28 import common
  29
  30 #######################################################################
  31 # Configuration options
  32
  33 opts = Variables('config.py')
  34 common.AddOptions(opts)
  35
  36 env = Environment(
  37         options = opts,
  38         tools = ['gallium'],
  39         toolpath = ['#scons'],
  40         ENV = os.environ,
  41 )
  42
  43 # Backwards compatability with old target configuration variable
  44 try:
  45     targets = ARGUMENTS['targets']
  46 except KeyError:
  47     pass
  48 else:
  49     targets = targets.split(',')
  50     print 'scons: warning: targets option is deprecated; pass the targets on their own such as'
  51     print
  52     print '  scons %s' % ' '.join(targets)
  53     print
  54     COMMAND_LINE_TARGETS.append(targets)
  55
  56
  57 Help(opts.GenerateHelpText(env))
  58
  59
  60 #######################################################################
  61 # Environment setup
  62
  63 # Includes
  64 env.Prepend(CPPPATH = [
  65         '#/include',
  66 ])
  67 env.Append(CPPPATH = [
  68         '#/src/gallium/include',
  69         '#/src/gallium/auxiliary',
  70         '#/src/gallium/drivers',
  71         '#/src/gallium/winsys',
  72 ])
  73
  74 if env['msvc']:
  75     env.Append(CPPPATH = ['#include/c99'])
  76
  77 # Embedded
  78 if env['platform'] == 'embedded':
  79         env.Append(CPPDEFINES = [
  80                 '_POSIX_SOURCE',
  81                 ('_POSIX_C_SOURCE', '199309L'),
  82                 '_SVID_SOURCE',
  83                 '_BSD_SOURCE',
  84                 '_GNU_SOURCE',
  85
  86                 'PTHREADS',
  87         ])
  88         env.Append(LIBS = [
  89                 'm',
  90                 'pthread',
  91                 'dl',
  92         ])
  93
  94 # Posix
  95 if env['platform'] in ('posix', 'linux', 'freebsd', 'darwin'):
  96         env.Append(CPPDEFINES = [
  97                 '_POSIX_SOURCE',
  98                 ('_POSIX_C_SOURCE', '199309L'),
  99                 '_SVID_SOURCE',
 100                 '_BSD_SOURCE',
 101                 '_GNU_SOURCE',
 102                 'PTHREADS',
 103                 'HAVE_POSIX_MEMALIGN',
 104         ])
 105         if env['gcc']:
 106                 env.Append(CFLAGS = ['-fvisibility=hidden'])
 107         if env['platform'] == 'darwin':
 108                 env.Append(CPPDEFINES = ['_DARWIN_C_SOURCE'])
 109         env.Append(LIBS = [
 110                 'm',
 111                 'pthread',
 112                 'dl',
 113         ])
 114
 115 # for debugging
 116 #print env.Dump()
 117
 118 Export('env')
 119
 120
 121 #######################################################################
 122 # Invoke host SConscripts
 123 #
 124 # For things that are meant to be run on the native host build machine, instead
 125 # of the target machine.
 126 #
 127
 128 # Create host environent
 129 if env['platform'] != common.host_platform:
 130     host_env = Environment(
 131         options = opts,
 132         # no tool used
 133         tools = [],
 134         toolpath = ['#scons'],
 135         ENV = os.environ,
 136     )
 137
 138     # Override options
 139     host_env['platform'] = common.host_platform
 140     host_env['machine'] = common.host_machine
 141     host_env['toolchain'] = 'default'
 142     host_env['llvm'] = False
 143
 144     host_env.Tool('gallium')
 145
 146     SConscript(
 147         'src/glsl/SConscript',
 148         variant_dir = host_env['build_dir'],
 149         duplicate = 0, # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
 150         exports={'env':host_env},
 151     )
 152
 153
 154 #######################################################################
 155 # Invoke SConscripts
 156
 157 # TODO: Build several variants at the same time?
 158 # http://www.scons.org/wiki/SimultaneousVariantBuilds
 159
 160 SConscript(
 161         'src/SConscript',
 162         variant_dir = env['build_dir'],
 163         duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
 164 )
 165