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      1 #######################################################################
      2 # Common SCons code
      3 
      4 import os
      5 import os.path
      6 import re
      7 import subprocess
      8 import sys
      9 import platform as _platform
     10 
     11 import SCons.Script.SConscript
     12 
     13 
     14 #######################################################################
     15 # Defaults
     16 
     17 host_platform = _platform.system().lower()
     18 if host_platform.startswith('cygwin'):
     19     host_platform = 'cygwin'
     20 
     21 # Search sys.argv[] for a "platform=foo" argument since we don't have
     22 # an 'env' variable at this point.
     23 if 'platform' in SCons.Script.ARGUMENTS:
     24     target_platform = SCons.Script.ARGUMENTS['platform']
     25 else:
     26     target_platform = host_platform
     27 
     28 _machine_map = {
     29 	'x86': 'x86',
     30 	'i386': 'x86',
     31 	'i486': 'x86',
     32 	'i586': 'x86',
     33 	'i686': 'x86',
     34 	'BePC': 'x86',
     35 	'Intel': 'x86',
     36 	'ppc' : 'ppc',
     37 	'BeBox': 'ppc',
     38 	'BeMac': 'ppc',
     39 	'AMD64': 'x86_64',
     40 	'x86_64': 'x86_64',
     41 	'sparc': 'sparc',
     42 	'sun4u': 'sparc',
     43 }
     44 
     45 
     46 # find host_machine value
     47 if 'PROCESSOR_ARCHITECTURE' in os.environ:
     48 	host_machine = os.environ['PROCESSOR_ARCHITECTURE']
     49 else:
     50 	host_machine = _platform.machine()
     51 host_machine = _machine_map.get(host_machine, 'generic')
     52 
     53 default_machine = host_machine
     54 default_toolchain = 'default'
     55 
     56 if target_platform == 'windows' and host_platform != 'windows':
     57     default_machine = 'x86'
     58     default_toolchain = 'crossmingw'
     59 
     60 
     61 # find default_llvm value
     62 if 'LLVM' in os.environ:
     63     default_llvm = 'yes'
     64 else:
     65     default_llvm = 'no'
     66     try:
     67         if target_platform != 'windows' and \
     68            subprocess.call(['llvm-config', '--version'], stdout=subprocess.PIPE) == 0:
     69             default_llvm = 'yes'
     70     except:
     71         pass
     72 
     73 
     74 #######################################################################
     75 # Common options
     76 
     77 def AddOptions(opts):
     78 	try:
     79 		from SCons.Variables.BoolVariable import BoolVariable as BoolOption
     80 	except ImportError:
     81 		from SCons.Options.BoolOption import BoolOption
     82 	try:
     83 		from SCons.Variables.EnumVariable import EnumVariable as EnumOption
     84 	except ImportError:
     85 		from SCons.Options.EnumOption import EnumOption
     86 	opts.Add(EnumOption('build', 'build type', 'debug',
     87 	                  allowed_values=('debug', 'checked', 'profile', 'release')))
     88 	opts.Add(BoolOption('verbose', 'verbose output', 'no'))
     89 	opts.Add(EnumOption('machine', 'use machine-specific assembly code', default_machine,
     90 											 allowed_values=('generic', 'ppc', 'x86', 'x86_64')))
     91 	opts.Add(EnumOption('platform', 'target platform', host_platform,
     92 											 allowed_values=('cygwin', 'darwin', 'freebsd', 'haiku', 'linux', 'sunos', 'windows')))
     93 	opts.Add(BoolOption('embedded', 'embedded build', 'no'))
     94 	opts.Add('toolchain', 'compiler toolchain', default_toolchain)
     95 	opts.Add(BoolOption('gles', 'EXPERIMENTAL: enable OpenGL ES support', 'no'))
     96 	opts.Add(BoolOption('llvm', 'use LLVM', default_llvm))
     97 	opts.Add(BoolOption('openmp', 'EXPERIMENTAL: compile with openmp (swrast)', 'no'))
     98 	opts.Add(BoolOption('debug', 'DEPRECATED: debug build', 'yes'))
     99 	opts.Add(BoolOption('profile', 'DEPRECATED: profile build', 'no'))
    100 	opts.Add(BoolOption('quiet', 'DEPRECATED: profile build', 'yes'))
    101 	opts.Add(BoolOption('texture_float', 'enable floating-point textures and renderbuffers', 'no'))
    102 	if host_platform == 'windows':
    103 		opts.Add(EnumOption('MSVS_VERSION', 'MS Visual C++ version', None, allowed_values=('7.1', '8.0', '9.0')))
    104