SConstruct
author Radek Brich <radek.brich@devl.cz>
Thu, 08 May 2008 09:21:25 +0200
branchpyrit
changeset 94 4c8abb8977dc
parent 93 96d65f841791
child 95 ca7d4c665531
permissions -rw-r--r--
update README update Doxygen docs scons option 'msvc' changed to 'mingw' as msvc is default and mingw must be turned on explicitly
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Help("""
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Targets:
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    all              - build everything,
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    libs             - build all libraries
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    demos            - build all demos
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    models           - download/prepare all models
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    docs             - compile doxygen documentation
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    libs = (static-lib, python-module)
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    static-lib       - ray tracer library to link with
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    python-module    - ray tracer module for Python
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    demos = (python-demos, cc-demos)
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    python-demos     - Python demos, this depends on python-module
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    cc-demos         - C++ demos
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    models = (local-models, download-models)
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    local-models     - prepare local models
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    download-models  - download models which are not locally available
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    no-docs = (libs, demos, models)
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                     - everything but docs
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    no-download = (libs, demos, local-models)
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                     - everything but docs and downloadable models
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Default target is no-download.
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Options:
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""")
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import os, sys
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EnsurePythonVersion(2, 3)
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EnsureSConsVersion(0, 97)
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Decider('MD5-timestamp')
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SConsignFile('build/.sconsign.dblite')
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if sys.platform == 'win32':
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	tools = ['mingw']
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else:
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	tools = ['default']
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env = Environment(tools = tools, CPPPATH = ['.','#include'])
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opt = Options(['build/.optioncache'])
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opt.AddOptions(
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	BoolOption('simd', 'allow SSE intrinsics', True),
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	('precision', 'floating point number precision (single/double)', "single"),
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	('flags', 'add additional compiler flags', ""),
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	BoolOption('force_flags', "use only flags specified by 'flags' option (do not autodetect arch/sse flags)", False),
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	BoolOption('profile', "enable gcc's profiling support (-pg)", False),
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)
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if env['PLATFORM'] == 'win32':
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	opt.AddOptions(
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		BoolOption('mingw', 'use Mingw and GCC compiler, if available', False),
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		('pythonpath', 'path to Python installation',
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			'C:\\Python%c%c' % (sys.version[0], sys.version[2])),
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	)
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else:
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	opt.AddOptions(
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		BoolOption('intelc', 'use Intel C++ Compiler, if available', False),
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	)
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opt.Update(env)
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opt.Save('build/.optioncache', env)
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Help(opt.GenerateHelpText(env))
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### configure
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platform = 'unknown'
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def CheckPlatform(context):
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	global platform
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	context.Message('Platform is... ')
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	if sys.platform[:5] == 'linux':
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		platform = 'linux'
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	elif env['PLATFORM'] == 'posix':
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		platform = 'posix'
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	elif env['PLATFORM'] == 'win32':
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		platform = 'win32'
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	context.Result(platform)
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	return True
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intelcversion = ''
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def CheckIntelC(context):
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	global intelc, intelcversion
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	context.Message('Checking for IntelC compiler... ')
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	intelc = Tool("intelc").exists(env) == True
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	if intelc:
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		testenv = Environment()
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		Tool("intelc").generate(testenv)
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		intelcversion = str(testenv['INTEL_C_COMPILER_VERSION']/10.)
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		context.Result(intelcversion)
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	else:
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		context.Result(intelc)
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	return intelc
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def CheckGCC(context):
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	global gcc, gccversion
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	context.Message('Checking for GCC compiler... ')
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	gcc = "g++" in env['TOOLS']
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	if gcc:
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		gccversion = env['CCVERSION']
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		context.Result(gccversion)
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	else:
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		gccversion = ''
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		context.Result(False)
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	return gcc
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def CheckMSVC(context):
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	global msvc, msvcversion
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	context.Message('Checking for MSVC compiler... ')
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	testenv = Environment()
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	msvc = "msvc" in testenv['TOOLS']
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	if msvc:
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		msvcversion = testenv['MSVS_VERSION']
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		context.Result(msvcversion)
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	else:
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		msvcversion = ''
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		context.Result(False)
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	return msvc
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def CheckCPUFlags(context):
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	global cpu, cpuflags_gcc, cpuflags_intelc
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	context.Message('Checking CPU arch and flags... ')
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	env.Execute('@$CC tools/cpuflags.c -o tools/cpuflags')
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	(cpu, cpuflags_gcc, cpuflags_intelc) = os.popen('tools'+os.sep+'cpuflags %s %s'
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		% (''.join(gccversion.rsplit('.',1)), intelcversion) ).read().split('\n')[:3]
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	context.Result(cpu)
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	return True
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   134
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conf_dir = "#/build/.sconf_temp"
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log_file="#/build/config.log"
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config_h="#/include/config.h"
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conf = Configure(env, conf_dir=conf_dir, log_file=log_file, config_h=config_h,
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	custom_tests = {
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		'CheckPlatform' : CheckPlatform, 'CheckCPUFlags' : CheckCPUFlags,
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		'CheckIntelC' : CheckIntelC, 'CheckGCC' : CheckGCC, 'CheckMSVC' : CheckMSVC})
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conf.CheckPlatform()
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   143
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conf.CheckGCC()
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if platform == 'win32':
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	conf.CheckMSVC()
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	intelc = False
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else:
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	conf.CheckIntelC()
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	msvc=False
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   151
92
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if intelc or gcc:
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	conf.CheckCPUFlags()
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   154
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if intelc and (not gcc or conf.env['intelc']):
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	Tool('intelc').generate(conf.env)
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	cc = 'intelc'
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   158
elif msvc and (not gcc or not conf.env['mingw']):
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	Tool('default').generate(conf.env)
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	conf.Define("MSVC")
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	cc = 'msvc'
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elif gcc:
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	cc = 'gcc'
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else:
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	cc = 'none'
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   166
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if platform == 'win32' and cc == 'gcc':
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	conf.env.Append(LIBPATH=["C:/mingw/lib", "C:/msys/mingw/lib"])
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	conf.env.Append(CPPPATH=["C:/mingw/include", "C:/msys/mingw/include"])
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   170
67
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add_flags = ''
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if cc == 'gcc':
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	add_flags += cpuflags_gcc + ' -ffast-math '
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   174
if cc == 'intelc':
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	add_flags += cpuflags_intelc + ' '
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if cc == 'msvc':
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	add_flags += '/fp:fast '
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	if conf.env['simd']:
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		add_flags += '/arch:SSE '
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   180
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if conf.env['force_flags']:
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	add_flags = conf.env['flags'] + ' '
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   183
else:
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	add_flags += conf.env['flags'] + ' '
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   185
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if conf.env['precision'] == 'double':
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	conf.Define("PYRIT_DOUBLE")
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   188
92
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if not conf.env['simd'] or conf.env['precision'] == 'double':
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   190
	conf.Define("NO_SIMD")
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   191
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   192
if cc == 'intelc':
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   193
	conf.env.Append(CCFLAGS="-O3 -w1 " + add_flags)
66
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   194
elif cc == 'gcc':
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   195
	conf.env.Append(CCFLAGS="-O3 -Wall -pipe " + add_flags)
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   196
	# Other useful flags:
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	# -Wunsafe-loop-optimizations -Wpointer-arith -Wcast-align -Wconversion
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	# -Wmissing-noreturn -Winline -Wdisabled-optimization
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   199
elif cc == 'msvc':
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   200
	conf.env.Append(CCFLAGS="/Ox /Ob2 /GS- /Gy /GF /GR- /Zp16 /MD /EHsc /vmb " + add_flags)
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   201
else:
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	print "No supported compiler found."
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	Exit(1)
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   204
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   205
print "Using compiler: " + cc
67
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   206
print "Additional flags: " + add_flags
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   207
93
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   208
if conf.env['profile'] and cc == 'gcc':
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   209
	conf.env.Append(CCFLAGS="-pg", LINKFLAGS="-pg")
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   210
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   211
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   212
# configure pthread
92
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   213
pthread = True
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   214
if platform == 'win32':
92
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   215
	if cc == 'msvc':
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   216
		if not conf.CheckLib('pthreadVC2'):
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   217
			pthread = False
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   218
	elif cc == 'gcc':
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   219
		if not conf.CheckLib('pthreadGC2'):
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   220
			pthread = False
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   221
else:
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   222
	conf.env.Append(CCFLAGS="-pthread ")
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diff changeset
   223
92
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   224
if not pthread:
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   225
	print 'Error: Cannot build without pthread.'
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	Exit(1)
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   227
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   228
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   229
# configure libpng
92
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   230
if conf.CheckLibWithHeader('png', 'png.h', 'C'):
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   231
	conf.Define('HAVE_PNG')
93
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   232
elif conf.CheckLib('libpng'):
92
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   233
	conf.Define('HAVE_PNG')
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diff changeset
   234
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   235
env = conf.Finish()
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diff changeset
   236
93
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   237
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   238
# configure Python
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   239
pyenv = env.Clone()
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   240
have_python = True
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   241
if platform == 'win32':
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   242
	pythonver = '%c%c' % (sys.version[0], sys.version[2])
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   243
	pythonlib = 'python'+pythonver
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   244
	pythonpath = [env['pythonpath'],
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   245
		'C:\\Program Files\\Python'+pythonver]
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diff changeset
   246
	pyenv.Append(CPPPATH=[s+'\\include' for s in pythonpath])
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   247
	pyenv.Append(LIBPATH=[s+'\\libs' for s in pythonpath])
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diff changeset
   248
	pyenv.Replace(SHLIBSUFFIX='.pyd')
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diff changeset
   249
	conf = Configure(pyenv, conf_dir=conf_dir, log_file=log_file, config_h=config_h)
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   250
	if not conf.CheckLib(pythonlib):
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   251
		have_python = False
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   252
	pyenv = conf.Finish()
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   253
else:
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   254
	try:
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		pyenv.ParseConfig('python-config --includes --libs')
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	except:
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		have_python = False
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if not have_python:
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	print "Error: Python is required."
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	Exit(1)
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# configure SDL
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sdlenv = env.Clone()
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if cc == 'msvc':
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	sdlenv.Append(LIBS=['SDL', 'SDLmain'])
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	sdlenv.Append(LINKFLAGS="/SUBSYSTEM:WINDOWS")
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else:
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	try:
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		sdlenv.ParseConfig('sh sdl-config --cflags')
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		sdlenv.ParseConfig('sh sdl-config --libs')
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	except:
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		pass
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def CheckSDL(context):
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	global have_sdl
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	context.Message('Checking for SDL... ')
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	if context.TryLink("#include <SDL.h>\n"+
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		"int main(int argc,char **argv){return 0;}", '.cc'):
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		context.Result(1)
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		return True
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	else:
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		context.Result("no (some demos won't be built)")
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	return False
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conf = Configure(sdlenv, conf_dir=conf_dir, log_file=log_file, config_h=config_h,
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	custom_tests = {'CheckSDL' : CheckSDL} )
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have_sdl = conf.CheckSDL()
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sdlenv = conf.Finish()
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### build targets
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Export('env pyenv sdlenv cc')
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lib = SConscript('src/SConscript', build_dir='build/lib', duplicate=0,
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	exports={'buildmodule':False})
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pymodule = SConscript('src/SConscript', build_dir='build/pymodule', duplicate=0,
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	exports={'buildmodule':True})
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if have_sdl:
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	SConscript('ccdemos/SConscript', build_dir='build/ccdemos', duplicate=0,
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		exports='lib')
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SConscript('demos/SConscript', exports='pymodule')
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SConscript('tests/SConscript', build_dir='build/tests', duplicate=0, exports='lib')
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SConscript('models/SConscript')
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env.Alias('demos', ['cc-demos', 'python-demos'])
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env.Alias('libs', ['static-lib', 'python-module'])
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env.Alias('docs', Command('docs/html', [], 'doxygen'))
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env.Clean('docs', ['docs/html'])
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env.Alias('no-docs', ['libs', 'demos', 'models'])
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env.Alias('no-download', ['libs', 'demos', 'local-models'])
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env.Alias('all', ['no-docs', 'docs'])
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env.Alias('pyrit', 'no-download')
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Default('pyrit')