SConstruct

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Author : matthieu
Date : 2010-05-22 20:05:42
Hash : e4fce734
Message : Update to Mesa 7.8.1. Tested on a bulk ports build by naddy@, ok oga@.
dist/Mesa/SConstruct
#######################################################################
# Top-level SConstruct
#
# For example, invoke scons as 
#
#   scons debug=1 dri=0 machine=x86
#
# to set configuration variables. Or you can write those options to a file
# named config.py:
#
#   # config.py
#   debug=1
#   dri=0
#   machine='x86'
# 
# Invoke
#
#   scons -h
#
# to get the full list of options. See scons manpage for more info.
#  

import os
import os.path
import sys
import SCons.Util

import common

#######################################################################
# Configuration options

default_statetrackers = 'mesa'

if common.default_platform in ('linux', 'freebsd', 'darwin'):
	default_drivers = 'softpipe,failover,svga,i915,i965,trace,identity,llvmpipe'
	default_winsys = 'xlib'
elif common.default_platform in ('winddk',):
	default_drivers = 'softpipe,svga,i915,i965,trace,identity'
	default_winsys = 'all'
elif common.default_platform in ('embedded',):
	default_drivers = 'softpipe,llvmpipe'
	default_winsys = 'xlib'
else:
	default_drivers = 'all'
	default_winsys = 'all'

opts = Variables('config.py')
common.AddOptions(opts)
opts.Add(ListVariable('statetrackers', 'state trackers to build', default_statetrackers,
                     ['mesa', 'python', 'xorg']))
opts.Add(ListVariable('drivers', 'pipe drivers to build', default_drivers,
                     ['softpipe', 'failover', 'svga', 'i915', 'i965', 'trace', 'r300', 'identity', 'llvmpipe']))
opts.Add(ListVariable('winsys', 'winsys drivers to build', default_winsys,
                     ['xlib', 'vmware', 'intel', 'i965', 'gdi', 'radeon']))

opts.Add(EnumVariable('MSVS_VERSION', 'MS Visual C++ version', None, allowed_values=('7.1', '8.0', '9.0')))

env = Environment(
	options = opts,
	tools = ['gallium'],
	toolpath = ['#scons'],	
	ENV = os.environ,
)

if os.environ.has_key('CC'):
	env['CC'] = os.environ['CC']
if os.environ.has_key('CFLAGS'):
	env['CCFLAGS'] += SCons.Util.CLVar(os.environ['CFLAGS'])
if os.environ.has_key('CXX'):
	env['CXX'] = os.environ['CXX']
if os.environ.has_key('CXXFLAGS'):
	env['CXXFLAGS'] += SCons.Util.CLVar(os.environ['CXXFLAGS'])
if os.environ.has_key('LDFLAGS'):
	env['LINKFLAGS'] += SCons.Util.CLVar(os.environ['LDFLAGS'])

Help(opts.GenerateHelpText(env))

# replicate options values in local variables
debug = env['debug']
dri = env['dri']
machine = env['machine']
platform = env['platform']
drawllvm = 'llvmpipe' in env['drivers']

# LLVM support in the Draw module
if drawllvm:
        env.Tool('llvm')
        if not env.has_key('LLVM_VERSION'):
           drawllvm = False

# derived options
x86 = machine == 'x86'
ppc = machine == 'ppc'
gcc = platform in ('linux', 'freebsd', 'darwin', 'embedded')
msvc = platform in ('windows', 'winddk')

Export([
	'debug', 
	'x86', 
	'ppc', 
	'dri', 
	'drawllvm',
	'platform',
	'gcc',
	'msvc',
])


#######################################################################
# Environment setup

# Always build trace driver
if 'trace' not in env['drivers']:
    env['drivers'].append('trace')

# Includes
env.Append(CPPPATH = [
	'#/include',
	'#/src/gallium/include',
	'#/src/gallium/auxiliary',
	'#/src/gallium/drivers',
])

if env['msvc']:
    env.Append(CPPPATH = ['#include/c99'])

# Embedded
if platform == 'embedded':
	env.Append(CPPDEFINES = [
		'_POSIX_SOURCE',
		('_POSIX_C_SOURCE', '199309L'), 
		'_SVID_SOURCE',
		'_BSD_SOURCE', 
		'_GNU_SOURCE',
		
		'PTHREADS',
	])
	env.Append(LIBS = [
		'm',
		'pthread',
		'dl',
	])

# Posix
if platform in ('posix', 'linux', 'freebsd', 'darwin'):
	env.Append(CPPDEFINES = [
		'_POSIX_SOURCE',
		('_POSIX_C_SOURCE', '199309L'), 
		'_SVID_SOURCE',
		'_BSD_SOURCE', 
		'_GNU_SOURCE',
		
		'PTHREADS',
		'HAVE_POSIX_MEMALIGN',
	])
	if platform == 'darwin':
		env.Append(CPPDEFINES = ['_DARWIN_C_SOURCE'])
	env.Append(CPPPATH = ['/usr/X11R6/include'])
	env.Append(LIBPATH = ['/usr/X11R6/lib'])
	env.Append(LIBS = [
		'm',
		'pthread',
		'expat',
		'dl',
	])

# DRI
if dri:
	env.ParseConfig('pkg-config --cflags --libs libdrm')
	env.Append(CPPDEFINES = [
		('USE_EXTERNAL_DXTN_LIB', '1'), 
		'IN_DRI_DRIVER',
		'GLX_DIRECT_RENDERING',
		'GLX_INDIRECT_RENDERING',
	])

# LLVM support in the Draw module
if drawllvm:
    env.Append(CPPDEFINES = ['DRAW_LLVM'])

# libGL
if platform in ('linux', 'freebsd', 'darwin'):
	env.Append(LIBS = [
		'X11',
		'Xext',
		'Xxf86vm',
		'Xdamage',
		'Xfixes',
	])

# for debugging
#print env.Dump()

Export('env')


#######################################################################
# Invoke SConscripts

# TODO: Build several variants at the same time?
# http://www.scons.org/wiki/SimultaneousVariantBuilds

if env['platform'] != common.default_platform:
    # GLSL code has to be built twice -- one for the host OS, another for the target OS...

    host_env = Environment(
        # options are ignored
        # default tool is used
        tools = ['default', 'custom'],
        toolpath = ['#scons'],	
        ENV = os.environ,
    )

    host_env['platform'] = common.default_platform
    host_env['machine'] = common.default_machine
    host_env['debug'] = env['debug']

    SConscript(
        'src/glsl/SConscript',
        variant_dir = os.path.join(env['build'], 'host'),
        duplicate = 0, # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
        exports={'env':host_env},
    )

SConscript(
	'src/SConscript',
	variant_dir = env['build'],
	duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
)

env.Default('src')

SConscript(
    'progs/SConscript',
    variant_dir = os.path.join('progs', env['build']),
    duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
)
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