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  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. # XXX: This creates a many problems as it saves...
  44. #opts.Save('config.py', env)
  45.  
  46. # Backwards compatability with old target configuration variable
  47. try:
  48.     targets = ARGUMENTS['targets']
  49. except KeyError:
  50.     pass
  51. else:
  52.     targets = targets.split(',')
  53.     print 'scons: warning: targets option is deprecated; pass the targets on their own such as'
  54.     print
  55.     print '  scons %s' % ' '.join(targets)
  56.     print
  57.     COMMAND_LINE_TARGETS.append(targets)
  58.  
  59.  
  60. Help(opts.GenerateHelpText(env))
  61.  
  62. #######################################################################
  63. # Environment setup
  64.  
  65. with open("VERSION") as f:
  66.   mesa_version = f.read().strip()
  67. env.Append(CPPDEFINES = [
  68.     ('PACKAGE_VERSION', '\\"%s\\"' % mesa_version),
  69.     ('PACKAGE_BUGREPORT', '\\"https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa\\"'),
  70. ])
  71.  
  72. # Includes
  73. env.Prepend(CPPPATH = [
  74.         '#/include',
  75. ])
  76. env.Append(CPPPATH = [
  77.         '#/src/gallium/include',
  78.         '#/src/gallium/auxiliary',
  79.         '#/src/gallium/drivers',
  80.         '#/src/gallium/winsys',
  81. ])
  82.  
  83. # for debugging
  84. #print env.Dump()
  85.  
  86.  
  87. #######################################################################
  88. # Invoke host SConscripts
  89. #
  90. # For things that are meant to be run on the native host build machine, instead
  91. # of the target machine.
  92. #
  93.  
  94. # Create host environent
  95. if env['crosscompile'] and not env['embedded']:
  96.     host_env = Environment(
  97.         options = opts,
  98.         # no tool used
  99.         tools = [],
  100.         toolpath = ['#scons'],
  101.         ENV = os.environ,
  102.     )
  103.  
  104.     # Override options
  105.     host_env['platform'] = common.host_platform
  106.     host_env['machine'] = common.host_machine
  107.     host_env['toolchain'] = 'default'
  108.     host_env['llvm'] = False
  109.  
  110.     host_env.Tool('gallium')
  111.  
  112.     host_env['hostonly'] = True
  113.     assert host_env['crosscompile'] == False
  114.  
  115.     target_env = env
  116.     env = host_env
  117.     Export('env')
  118.  
  119.     SConscript(
  120.         'src/SConscript',
  121.         variant_dir = host_env['build_dir'],
  122.         duplicate = 0, # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
  123.     )
  124.  
  125.     env = target_env
  126.  
  127. Export('env')
  128.  
  129. #######################################################################
  130. # Invoke SConscripts
  131.  
  132. # TODO: Build several variants at the same time?
  133. # http://www.scons.org/wiki/SimultaneousVariantBuilds
  134.  
  135. SConscript(
  136.         'src/SConscript',
  137.         variant_dir = env['build_dir'],
  138.         duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
  139. )
  140.  
  141.  
  142. ########################################################################
  143. # List all aliases
  144.  
  145. try:
  146.     from SCons.Node.Alias import default_ans
  147. except ImportError:
  148.     pass
  149. else:
  150.     aliases = default_ans.keys()
  151.     aliases.sort()
  152.     env.Help('\n')
  153.     env.Help('Recognized targets:\n')
  154.     for alias in aliases:
  155.         env.Help('    %s\n' % alias)
  156.