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#######################################################################
# 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
opts = Variables('config.py')
common.AddOptions(opts)
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']
machine = env['machine']
platform = env['platform']
# derived options
x86 = machine == 'x86'
ppc = machine == 'ppc'
gcc = platform in ('linux', 'freebsd', 'darwin', 'embedded')
msvc = platform in ('windows', 'winddk')
Export([
'debug',
'x86',
'ppc',
'platform',
'gcc',
'msvc',
])
#######################################################################
# Environment setup
# Includes
env.Prepend(CPPPATH = [
'#/include',
])
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(LIBS = [
'm',
'pthread',
'dl',
])
# for debugging
#print env.Dump()
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'],
duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
)
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