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SConstruct revision 1.1.1.1 
      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