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#######################################################################
# Top-level SConstruct
#
# For example, invoke scons as
#
# scons build=debug llvm=yes machine=x86
#
# to set configuration variables. Or you can write those options to a file
# named config.py:
#
# # config.py
# build='debug'
# llvm=True
# 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
opts = Variables('config.py')
common.AddOptions(opts)
env = Environment(
options = opts,
tools = ['gallium'],
toolpath = ['#scons'],
ENV = os.environ,
)
# XXX: This creates a many problems as it saves...
#opts.Save('config.py', env)
# Backwards compatability with old target configuration variable
try:
targets = ARGUMENTS['targets']
except KeyError:
pass
else:
targets = targets.split(',')
print 'scons: warning: targets option is deprecated; pass the targets on their own such as'
print
print ' scons %s' % ' '.join(targets)
print
COMMAND_LINE_TARGETS.append(targets)
Help(opts.GenerateHelpText(env))
# fail early for a common error on windows
if env['gles']:
try:
import libxml2
except ImportError:
raise SCons.Errors.UserError, "GLES requires libxml2-python to build"
#######################################################################
# Environment setup
env.Append(CPPDEFINES = [
('PACKAGE_VERSION', '\\"9.2-devel\\"'),
('PACKAGE_BUGREPORT', '\\"https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa\\"'),
])
# Includes
env.Prepend(CPPPATH = [
'#/include',
])
env.Append(CPPPATH = [
'#/src/gallium/include',
'#/src/gallium/auxiliary',
'#/src/gallium/drivers',
'#/src/gallium/winsys',
])
if env['msvc']:
env.Append(CPPPATH = ['#include/c99'])
# for debugging
#print env.Dump()
#######################################################################
# Invoke host SConscripts
#
# For things that are meant to be run on the native host build machine, instead
# of the target machine.
#
# Create host environent
if env['crosscompile'] and not env['embedded']:
host_env = Environment(
options = opts,
# no tool used
tools = [],
toolpath = ['#scons'],
ENV = os.environ,
)
# Override options
host_env['platform'] = common.host_platform
host_env['machine'] = common.host_machine
host_env['toolchain'] = 'default'
host_env['llvm'] = False
host_env.Tool('gallium')
host_env['hostonly'] = True
assert host_env['crosscompile'] == False
if host_env['msvc']:
host_env.Append(CPPPATH = ['#include/c99'])
target_env = env
env = host_env
Export('env')
SConscript(
'src/SConscript',
variant_dir = host_env['build_dir'],
duplicate = 0, # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
)
env = target_env
Export('env')
#######################################################################
# Invoke SConscripts
# TODO: Build several variants at the same time?
# http://www.scons.org/wiki/SimultaneousVariantBuilds
SConscript(
'src/SConscript',
variant_dir = env['build_dir'],
duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
)
########################################################################
# List all aliases
try:
from SCons.Node.Alias import default_ans
except ImportError:
pass
else:
aliases = default_ans.keys()
aliases.sort()
env.Help('\n')
env.Help('Recognized targets:\n')
for alias in aliases:
env.Help(' %s\n' % alias)
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